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  13  <h1>
  14      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  15
  16  </h1>
  17
  18 </div>
  19
  20
  21
  22     <div class="entry">
  23       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Simple_streaming_the_Linux_desktop_to_Kodi_using_GStreamer_and_RTP.html">Simple streaming the Linux desktop to Kodi using GStreamer and RTP</a></div>
  24       <div class="date">12th July 2018</div>
  25       <div class="body"><p>Last night, I wrote
  26 <a href="http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html">a
  27 recipe to stream a Linux desktop using VLC to a instance of Kodi</a>.
  28 During the day I received valuable feedback, and thanks to the
  29 suggestions I have been able to rewrite the recipe into a much simpler
  30 approach requiring no setup at all.  It is a single script that take
  31 care of it all.</p>
  32
  33 <p>This new script uses GStreamer instead of VLC to capture the
  34 desktop and stream it to Kodi.  This fixed the video quality issue I
  35 saw initially.  It further removes the need to add a m3u file on the
  36 Kodi machine, as it instead connects to
  37 <a href="https://kodi.wiki/view/JSON-RPC_API/v8">the JSON-RPC API in
  38 Kodi</a> and simply ask Kodi to play from the stream created using
  39 GStreamer.  Streaming the desktop to Kodi now become trivial.  Copy
  40 the script below, run it with the DNS name or IP address of the kodi
  41 server to stream to as the only argument, and watch your screen show
  42 up on the Kodi screen.  Note, it depend on multicast on the local
  43 network, so if you need to stream outside the local network, the
  44 script must be modified.  Also note, I have no idea if audio work, as
  45 I only care about the picture part.</p>
  46
  47 <blockquote><pre>
  48 #!/bin/sh
  49 #
  50 # Stream the Linux desktop view to Kodi.  See
  51 # http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html
  52 # for backgorund information.
  53
  54 # Make sure the stream is stopped in Kodi and the gstreamer process is
  55 # killed if something go wrong (for example if curl is unable to find the
  56 # kodi server).  Do the same when interrupting this script.
  57 kodicmd() {
  58     host="$1"
  59     cmd="$2"
  60     params="$3"
  61     curl --silent --header 'Content-Type: application/json' \
  62          --data-binary "{ \"id\": 1, \"jsonrpc\": \"2.0\", \"method\": \"$cmd\", \"params\": $params }" \
  63          "http://$host/jsonrpc"
  64 }
  65 cleanup() {
  66     if [ -n "$kodihost" ] ; then
  67         # Stop the playing when we end
  68         playerid=$(kodicmd "$kodihost" Player.GetActivePlayers "{}" |
  69                             jq .result[].playerid)
  70         kodicmd "$kodihost" Player.Stop "{ \"playerid\" : $playerid }" > /dev/null
  71     fi
  72     if [ "$gstpid" ] && kill -0 "$gstpid" >/dev/null 2>&1; then
  73         kill "$gstpid"
  74     fi
  75 }
  76 trap cleanup EXIT INT
  77
  78 if [ -n "$1" ]; then
  79     kodihost=$1
  80     shift
  81 else
  82     kodihost=kodi.local
  83 fi
  84
  85 mcast=239.255.0.1
  86 mcastport=1234
  87 mcastttl=1
  88
  89 pasrc=$(pactl list | grep -A2 'Source #' | grep 'Name: .*\.monitor$' | \
  90   cut -d" " -f2|head -1)
  91 gst-launch-1.0 ximagesrc use-damage=0 ! video/x-raw,framerate=30/1 ! \
  92   videoconvert ! queue2 ! \
  93   x264enc bitrate=8000 speed-preset=superfast tune=zerolatency qp-min=30 \
  94   key-int-max=15 bframes=2 ! video/x-h264,profile=high ! queue2 ! \
  95   mpegtsmux alignment=7 name=mux ! rndbuffersize max=1316 min=1316 ! \
  96   udpsink host=$mcast port=$mcastport ttl-mc=$mcastttl auto-multicast=1 sync=0 \
  97   pulsesrc device=$pasrc ! audioconvert ! queue2 ! avenc_aac ! queue2 ! mux. \
  98   > /dev/null 2>&1 &
  99 gstpid=$!
 100
 101 # Give stream a second to get going
 102 sleep 1
 103
 104 # Ask kodi to start streaming using its JSON-RPC API
 105 kodicmd "$kodihost" Player.Open \
 106         "{\"item\": { \"file\": \"udp://@$mcast:$mcastport\" } }" > /dev/null
 107
 108 # wait for gst to end
 109 wait "$gstpid"
 110 </pre></blockquote>
 111
 112 <p>I hope you find the approach useful.  I know I do.</p>
 113
 114 <p>As usual, if you use Bitcoin and want to show your support of my
 115 activities, please send Bitcoin donations to my address
 116 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 117 </div>
 118       <div class="tags">
 119
 120
 121         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
 122
 123
 124       </div>
 125     </div>
 126     <div class="padding"></div>
 127
 128     <div class="entry">
 129       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html">Streaming the Linux desktop to Kodi using VLC and RTSP</a></div>
 130       <div class="date">12th July 2018</div>
 131       <div class="body"><p>PS: See
 132 <ahref="http://people.skolelinux.org/pere/blog/Simple_streaming_the_Linux_desktop_to_Kodi_using_GStreamer_and_RTP.html">the
 133 followup post</a> for a even better approach.</p>
 134
 135 <p>A while back, I was asked by a friend how to stream the desktop to
 136 my projector connected to Kodi.  I sadly had to admit that I had no
 137 idea, as it was a task I never had tried.  Since then, I have been
 138 looking for a way to do so, preferable without much extra software to
 139 install on either side.  Today I found a way that seem to kind of
 140 work.  Not great, but it is a start.</p>
 141
 142 <p>I had a look at several approaches, for example
 143 <a href="https://github.com/mfoetsch/dlna_live_streaming">using uPnP
 144 DLNA as described in 2011</a>, but it required a uPnP server, fuse and
 145 local storage enough to store the stream locally.  This is not going
 146 to work well for me, lacking enough free space, and it would
 147 impossible for my friend to get working.</p>
 148
 149 <p>Next, it occurred to me that perhaps I could use VLC to create a
 150 video stream that Kodi could play.  Preferably using
 151 broadcast/multicast, to avoid having to change any setup on the Kodi
 152 side when starting such stream.  Unfortunately, the only recipe I
 153 could find using multicast used the rtp protocol, and this protocol
 154 seem to not be supported by Kodi.</p>
 155
 156 <p>On the other hand, the rtsp protocol is working!  Unfortunately I
 157 have to specify the IP address of the streaming machine in both the
 158 sending command and the file on the Kodi server.  But it is showing my
 159 desktop, and thus allow us to have a shared look on the big screen at
 160 the programs I work on.</p>
 161
 162 <p>I did not spend much time investigating codeces.  I combined the
 163 rtp and rtsp recipes from
 164 <a href="https://wiki.videolan.org/Documentation:Streaming_HowTo/Command_Line_Examples/">the
 165 VLC Streaming HowTo/Command Line Examples</a>, and was able to get
 166 this working on the desktop/streaming end.</p>
 167
 168 <blockquote><pre>
 169 vlc screen:// --sout \
 170   '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{dst=projector.local,port=1234,sdp=rtsp://192.168.11.4:8080/test.sdp}'
 171 </pre></blockquote>
 172
 173 <p>I ssh-ed into my Kodi box and created a file like this with the
 174 same IP address:</p>
 175
 176 <blockquote><pre>
 177 echo rtsp://192.168.11.4:8080/test.sdp \
 178   > /storage/videos/screenstream.m3u
 179 </pre></blockquote>
 180
 181 <p>Note the 192.168.11.4 IP address is my desktops IP address.  As far
 182 as I can tell the IP must be hardcoded for this to work.  In other
 183 words, if someone elses machine is going to do the steaming, you have
 184 to update screenstream.m3u on the Kodi machine and adjust the vlc
 185 recipe.  To get started, locate the file in Kodi and select the m3u
 186 file while the VLC stream is running.  The desktop then show up in my
 187 big screen. :)</p>
 188
 189 <p>When using the same technique to stream a video file with audio,
 190 the audio quality is really bad.  No idea if the problem is package
 191 loss or bad parameters for the transcode.  I do not know VLC nor Kodi
 192 enough to tell.</p>
 193
 194 <p><strong>Update 2018-07-12</strong>: Johannes Schauer send me a few
 195 succestions and reminded me about an important step.  The "screen:"
 196 input source is only available once the vlc-plugin-access-extra
 197 package is installed on Debian.  Without it, you will see this error
 198 message: "VLC is unable to open the MRL 'screen://'.  Check the log
 199 for details."  He further found that it is possible to drop some parts
 200 of the VLC command line to reduce the amount of hardcoded information.
 201 It is also useful to consider using cvlc to avoid having the VLC
 202 window in the desktop view.  In sum, this give us this command line on
 203 the source end
 204
 205 <blockquote><pre>
 206 cvlc screen:// --sout \
 207   '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{sdp=rtsp://:8080/}'
 208 </pre></blockquote>
 209
 210 <p>and this on the Kodi end<p>
 211
 212 <blockquote><pre>
 213 echo rtsp://192.168.11.4:8080/ \
 214   > /storage/videos/screenstream.m3u
 215 </pre></blockquote>
 216
 217 <p>Still bad image quality, though.  But I did discover that streaming
 218 a DVD using dvdsimple:///dev/dvd as the source had excellent video and
 219 audio quality, so I guess the issue is in the input or transcoding
 220 parts, not the rtsp part.  I've tried to change the vb and ab
 221 parameters to use more bandwidth, but it did not make a
 222 difference.</p>
 223
 224 <p>I further received a suggestion from Einar Haraldseid to try using
 225 gstreamer instead of VLC, and this proved to work great!  He also
 226 provided me with the trick to get Kodi to use a multicast stream as
 227 its source.  By using this monstrous oneliner, I can stream my desktop
 228 with good video quality in reasonable framerate to the 239.255.0.1
 229 multicast address on port 1234:
 230
 231 <blockquote><pre>
 232 gst-launch-1.0 ximagesrc use-damage=0 ! video/x-raw,framerate=30/1 ! \
 233   videoconvert ! queue2 ! \
 234   x264enc bitrate=8000 speed-preset=superfast tune=zerolatency qp-min=30 \
 235   key-int-max=15 bframes=2 ! video/x-h264,profile=high ! queue2 ! \
 236   mpegtsmux alignment=7 name=mux ! rndbuffersize max=1316 min=1316 ! \
 237   udpsink host=239.255.0.1 port=1234 ttl-mc=1 auto-multicast=1 sync=0 \
 238   pulsesrc device=$(pactl list | grep -A2 'Source #' | \
 239     grep 'Name: .*\.monitor$' |  cut -d" " -f2|head -1) ! \
 240   audioconvert ! queue2 ! avenc_aac ! queue2 ! mux.
 241 </pre></blockquote>
 242
 243 <p>and this on the Kodi end<p>
 244
 245 <blockquote><pre>
 246 echo udp://@239.255.0.1:1234 \
 247   > /storage/videos/screenstream.m3u
 248 </pre></blockquote>
 249
 250 <p>Note the trick to pick a valid pulseaudio source.  It might not
 251 pick the one you need.  This approach will of course lead to trouble
 252 if more than one source uses the same multicast port and address.
 253 Note the ttl-mc=1 setting, which limit the multicast packages to the
 254 local network.  If the value is increased, your screen will be
 255 broadcasted further, one network "hop" for each increase (read up on
 256 multicast to learn more. :)!</p>
 257
 258 <p>Having cracked how to get Kodi to receive multicast streams, I
 259 could use this VLC command to stream to the same multicast address.
 260 The image quality is way better than the rtsp approach, but gstreamer
 261 seem to be doing a better job.</p>
 262
 263 <blockquote><pre>
 264 cvlc screen:// --sout '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{mux=ts,dst=239.255.0.1,port=1234,sdp=sap}'
 265 </pre></blockquote>
 266
 267 <p>As usual, if you use Bitcoin and want to show your support of my
 268 activities, please send Bitcoin donations to my address
 269 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 270 </div>
 271       <div class="tags">
 272
 273
 274         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
 275
 276
 277       </div>
 278     </div>
 279     <div class="padding"></div>
 280
 281     <div class="entry">
 282       <div class="title"><a href="http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_in_2018_.html">What is the most supported MIME type in Debian in 2018?</a></div>
 283       <div class="date"> 9th July 2018</div>
 284       <div class="body"><p>Five years ago,
 285 <a href="http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_.html">I
 286 measured what the most supported MIME type in Debian was</a>, by
 287 analysing the desktop files in all packages in the archive.  Since
 288 then, the DEP-11 AppStream system has been put into production, making
 289 the task a lot easier.  This made me want to repeat the measurement,
 290 to see how much things changed.  Here are the new numbers, for
 291 unstable only this time:
 292
 293 <p><strong>Debian Unstable:</strong></p>
 294
 295 <pre>
 296   count MIME type
 297   ----- -----------------------
 298      56 image/jpeg
 299      55 image/png
 300      49 image/tiff
 301      48 image/gif
 302      39 image/bmp
 303      38 text/plain
 304      37 audio/mpeg
 305      34 application/ogg
 306      33 audio/x-flac
 307      32 audio/x-mp3
 308      30 audio/x-wav
 309      30 audio/x-vorbis+ogg
 310      29 image/x-portable-pixmap
 311      27 inode/directory
 312      27 image/x-portable-bitmap
 313      27 audio/x-mpeg
 314      26 application/x-ogg
 315      25 audio/x-mpegurl
 316      25 audio/ogg
 317      24 text/html
 318 </pre>
 319
 320 <p>The list was created like this using a sid chroot: "cat
 321 /var/lib/apt/lists/*sid*_dep11_Components-amd64.yml.gz| zcat | awk '/^
 322 - \S+\/\S+$/ {print $2 }' | sort | uniq -c | sort -nr | head -20"</p>
 323
 324 <p>It is interesting to see how image formats have passed text/plain
 325 as the most announced supported MIME type.  These days, thanks to the
 326 AppStream system, if you run into a file format you do not know, and
 327 want to figure out which packages support the format, you can find the
 328 MIME type of the file using "file --mime &lt;filename&gt;", and then
 329 look up all packages announcing support for this format in their
 330 AppStream metadata (XML or .desktop file) using "appstreamcli
 331 what-provides mimetype &lt;mime-type&gt;.  For example if you, like
 332 me, want to know which packages support inode/directory, you can get a
 333 list like this:</p>
 334
 335 <p><blockquote><pre>
 336 % appstreamcli what-provides mimetype inode/directory | grep Package: | sort
 337 Package: anjuta
 338 Package: audacious
 339 Package: baobab
 340 Package: cervisia
 341 Package: chirp
 342 Package: dolphin
 343 Package: doublecmd-common
 344 Package: easytag
 345 Package: enlightenment
 346 Package: ephoto
 347 Package: filelight
 348 Package: gwenview
 349 Package: k4dirstat
 350 Package: kaffeine
 351 Package: kdesvn
 352 Package: kid3
 353 Package: kid3-qt
 354 Package: nautilus
 355 Package: nemo
 356 Package: pcmanfm
 357 Package: pcmanfm-qt
 358 Package: qweborf
 359 Package: ranger
 360 Package: sirikali
 361 Package: spacefm
 362 Package: spacefm
 363 Package: vifm
 364 %
 365 </pre></blockquote></p>
 366
 367 <p>Using the same method, I can quickly discover that the Sketchup file
 368 format is not yet supported by any package in Debian:</p>
 369
 370 <p><blockquote><pre>
 371 % appstreamcli what-provides mimetype  application/vnd.sketchup.skp
 372 Could not find component providing 'mimetype::application/vnd.sketchup.skp'.
 373 %
 374 </pre></blockquote></p>
 375
 376 <p>Yesterday I used it to figure out which packages support the STL 3D
 377 format:</p>
 378
 379 <p><blockquote><pre>
 380 % appstreamcli what-provides mimetype  application/sla|grep Package
 381 Package: cura
 382 Package: meshlab
 383 Package: printrun
 384 %
 385 </pre></blockquote></p>
 386
 387 <p>PS: A new version of Cura was uploaded to Debian yesterday.</p>
 388
 389 <p>As usual, if you use Bitcoin and want to show your support of my
 390 activities, please send Bitcoin donations to my address
 391 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 392 </div>
 393       <div class="tags">
 394
 395
 396         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram</a>.
 397
 398
 399       </div>
 400     </div>
 401     <div class="padding"></div>
 402
 403     <div class="entry">
 404       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Debian_APT_upgrade_without_enough_free_space_on_the_disk___.html">Debian APT upgrade without enough free space on the disk...</a></div>
 405       <div class="date"> 8th July 2018</div>
 406       <div class="body"><p>Quite regularly, I let my Debian Sid/Unstable chroot stay untouch
 407 for a while, and when I need to update it there is not enough free
 408 space on the disk for apt to do a normal 'apt upgrade'.  I normally
 409 would resolve the issue by doing 'apt install &lt;somepackages&gt;' to
 410 upgrade only some of the packages in one batch, until the amount of
 411 packages to download fall below the amount of free space available.
 412 Today, I had about 500 packages to upgrade, and after a while I got
 413 tired of trying to install chunks of packages manually.  I concluded
 414 that I did not have the spare hours required to complete the task, and
 415 decided to see if I could automate it.  I came up with this small
 416 script which I call 'apt-in-chunks':</p>
 417
 418 <p><blockquote><pre>
 419 #!/bin/sh
 420 #
 421 # Upgrade packages when the disk is too full to upgrade every
 422 # upgradable package in one lump.  Fetching packages to upgrade using
 423 # apt, and then installing using dpkg, to avoid changing the package
 424 # flag for manual/automatic.
 425
 426 set -e
 427
 428 ignore() {
 429     if [ "$1" ]; then
 430         grep -v "$1"
 431     else
 432         cat
 433     fi
 434 }
 435
 436 for p in $(apt list --upgradable | ignore "$@" |cut -d/ -f1 | grep -v '^Listing...'); do
 437     echo "Upgrading $p"
 438     apt clean
 439     apt install --download-only -y $p
 440     for f in /var/cache/apt/archives/*.deb; do
 441         if [ -e "$f" ]; then
 442             dpkg -i /var/cache/apt/archives/*.deb
 443             break
 444         fi
 445     done
 446 done
 447 </pre></blockquote></p>
 448
 449 <p>The script will extract the list of packages to upgrade, try to
 450 download the packages needed to upgrade one package, install the
 451 downloaded packages using dpkg.  The idea is to upgrade packages
 452 without changing the APT mark for the package (ie the one recording of
 453 the package was manually requested or pulled in as a dependency).  To
 454 use it, simply run it as root from the command line.  If it fail, try
 455 'apt install -f' to clean up the mess and run the script again.  This
 456 might happen if the new packages conflict with one of the old
 457 packages.  dpkg is unable to remove, while apt can do this.</p>
 458
 459 <p>It take one option, a package to ignore in the list of packages to
 460 upgrade.  The option to ignore a package is there to be able to skip
 461 the packages that are simply too large to unpack.  Today this was
 462 'ghc', but I have run into other large packages causing similar
 463 problems earlier (like TeX).</p>
 464
 465 <p>Update 2018-07-08: Thanks to Paul Wise, I am aware of two
 466 alternative ways to handle this.  The "unattended-upgrades
 467 --minimal-upgrade-steps" option will try to calculate upgrade sets for
 468 each package to upgrade, and then upgrade them in order, smallest set
 469 first.  It might be a better option than my above mentioned script.
 470 Also, "aptutude upgrade" can upgrade single packages, thus avoiding
 471 the need for using "dpkg -i" in the script above.</p>
 472
 473 <p>As usual, if you use Bitcoin and want to show your support of my
 474 activities, please send Bitcoin donations to my address
 475 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 476 </div>
 477       <div class="tags">
 478
 479
 480         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 481
 482
 483       </div>
 484     </div>
 485     <div class="padding"></div>
 486
 487     <div class="entry">
 488       <div class="title"><a href="http://people.skolelinux.org/pere/blog/The_worlds_only_stone_power_plant_.html">The worlds only stone power plant?</a></div>
 489       <div class="date">30th June 2018</div>
 490       <div class="body"><p>So far, at least hydro-electric power, coal power, wind power,
 491 solar power, and wood power are well known.  Until a few days ago, I
 492 had never heard of stone power.  Then I learn about a quarry in a
 493 mountain in
 494 <a href="https://en.wikipedia.org/wiki/Bremanger">Bremanger</a> i
 495 Norway, where
 496 <a href="https://www.bontrup.com/en/activities/raw-materials/bremanger-quarry/">the
 497 Bremanger Quarry</a> company is extracting stone and dumping the stone
 498 into a shaft leading to its shipping harbour.  This downward movement
 499 in this shaft is used to produce electricity.  In short, it is using
 500 falling rocks instead of falling water to produce electricity, and
 501 according to its own statements it is producing more power than it is
 502 using, and selling the surplus electricity to the Norwegian power
 503 grid.  I find the concept truly amazing.  Is this the worlds only
 504 stone power plant?</p>
 505
 506 <p>As usual, if you use Bitcoin and want to show your support of my
 507 activities, please send Bitcoin donations to my address
 508 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 509 </div>
 510       <div class="tags">
 511
 512
 513         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 514
 515
 516       </div>
 517     </div>
 518     <div class="padding"></div>
 519
 520     <div class="entry">
 521       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Add_on_to_control_the_projector_from_within_Kodi.html">Add-on to control the projector from within Kodi</a></div>
 522       <div class="date">26th June 2018</div>
 523       <div class="body"><p>My movie playing setup involve <a href="https://kodi.tv/">Kodi</a>,
 524 <a href="https://openelec.tv">OpenELEC</a> (probably soon to be
 525 replaced with <a href="https://libreelec.tv/">LibreELEC</a>) and an
 526 Infocus IN76 video projector.  My projector can be controlled via both
 527 a infrared remote controller, and a RS-232 serial line.  The vendor of
 528 my projector, <a href="https://www.infocus.com/">InFocus</a>, had been
 529 sensible enough to document the serial protocol in its user manual, so
 530 it is easily available, and I used it some years ago to write
 531 <a href="https://github.com/petterreinholdtsen/infocus-projector-control">a
 532 small script to control the projector</a>.  For a while now, I longed
 533 for a setup where the projector was controlled by Kodi, for example in
 534 such a way that when the screen saver went on, the projector was
 535 turned off, and when the screen saver exited, the projector was turned
 536 on again.</p>
 537
 538 <p>A few days ago, with very good help from parts of my family, I
 539 managed to find a Kodi Add-on for controlling a Epson projector, and
 540 got in touch with its author to see if we could join forces and make a
 541 Add-on with support for several projectors.  To my pleasure, he was
 542 positive to the idea, and we set out to add InFocus support to his
 543 add-on, and make the add-on suitable for the official Kodi add-on
 544 repository.</p>
 545
 546 <p>The Add-on is now working (for me, at least), with a few minor
 547 adjustments.  The most important change I do relative to the master
 548 branch in the github repository is embedding the
 549 <a href="https://github.com/pyserial/pyserial">pyserial module</a> in
 550 the add-on.  The long term solution is to make a "script" type
 551 pyserial module for Kodi, that can be pulled in as a dependency in
 552 Kodi.  But until that in place, I embed it.</p>
 553
 554 <p>The add-on can be configured to turn on the projector when Kodi
 555 starts, off when Kodi stops as well as turn the projector off when the
 556 screensaver start and on when the screesaver stops.  It can also be
 557 told to set the projector source when turning on the projector.
 558
 559 <p>If this sound interesting to you, check out
 560 <a href="https://github.com/fredrik-eriksson/kodi_projcontrol">the
 561 project github repository</a>.  Perhaps you can send patches to
 562 support your projector too?  As soon as we find time to wrap up the
 563 latest changes, it should be available for easy installation using any
 564 Kodi instance.</p>
 565
 566 <p>For future improvements, I would like to add projector model
 567 detection and the ability to adjust the brightness level of the
 568 projector from within Kodi.  We also need to figure out how to handle
 569 the cooling period of the projector.  My projector refuses to turn on
 570 for 60 seconds after it was turned off.  This is not handled well by
 571 the add-on at the moment.</p>
 572
 573 <p>As usual, if you use Bitcoin and want to show your support of my
 574 activities, please send Bitcoin donations to my address
 575 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 576 </div>
 577       <div class="tags">
 578
 579
 580         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
 581
 582
 583       </div>
 584     </div>
 585     <div class="padding"></div>
 586
 587     <div class="entry">
 588       <div class="title"><a href="http://people.skolelinux.org/pere/blog/youtube_dl_for_nedlasting_fra_NRK_med_undertekster___nice_free_software.html">youtube-dl for nedlasting fra NRK med undertekster - nice free software</a></div>
 589       <div class="date">28th April 2018</div>
 590       <div class="body"><p>I <a href="https://no.wikipedia.org/wiki/VHS">VHS-kassettenes</a>
 591 tid var det rett frem å ta vare på et TV-program en ønsket å kunne se
 592 senere, uten å være avhengig av at programmet ble sendt på nytt.
 593 Kanskje ønsket en å se programmet på hytten der det ikke var
 594 TV-signal, eller av andre grunner ha det tilgjengelig for fremtidig
 595 fornøyelse.  Dette er blitt vanskeligere med introduksjon av
 596 digital-TV og webstreaming, der opptak til harddisk er utenfor de
 597 flestes kontroll hvis de bruker ufri programvare og bokser kontrollert
 598 av andre.  Men for NRK her i Norge, finnes det heldigvis flere fri
 599 programvare-alternativer, som jeg har
 600 <a href="http://people.skolelinux.org/pere/blog/Hvordan_enkelt_laste_ned_filmer_fra_NRK.html">skrevet</a>
 601 <a href="http://people.skolelinux.org/pere/blog/Hvordan_enkelt_laste_ned_filmer_fra_NRK_med_den__nye__l_sningen.html">om</a>
 602 <a href="http://people.skolelinux.org/pere/blog/Nedlasting_fra_NRK__som_Matroska_med_undertekster.html">før</a>.
 603 Så lenge kilden for nedlastingen er lovlig lagt ut på nett (hvilket
 604 jeg antar NRK gjør), så er slik lagring til privat bruk også lovlig i
 605 Norge.</p>
 606
 607 <p>Sist jeg så på saken, i 2016, nevnte jeg at
 608 <a href="https://rg3.github.com/youtube-dl/">youtube-dl</a> ikke kunne
 609 bake undertekster fra NRK inn i videofilene, og at jeg derfor
 610 foretrakk andre alternativer.  Nylig oppdaget jeg at dette har endret
 611 seg.  Fordelen med youtube-dl er at den er tilgjengelig direkte fra
 612 Linux-distribusjoner som <a href="https://www.debian.org/">Debian</a>
 613 og <a href="https://www.ubuntu.com/">Ubuntu</a>, slik at en slipper å
 614 finne ut selv hvordan en skal få dem til å virke.</p>
 615
 616 <p>For å laste ned et NRK-innslag med undertekster, og få den norske
 617 underteksten pakket inn i videofilen, så kan følgende kommando
 618 brukes:</p>
 619
 620 <p><pre>
 621 youtube-dl --write-sub --sub-format ttml \
 622   --convert-subtitles srt --embed-subs \
 623   https://tv.nrk.no/serie/ramm-ferdig-gaa/MUHU11000316/27-04-2018
 624 </pre></p>
 625
 626 <p>URL-eksemplet er dagens toppsak på tv.nrk.no.  Resultatet er en
 627 MP4-fil med filmen og undertekster som kan spilles av med VLC.  Merk
 628 at VLC ikke viser frem undertekster før du aktiverer dem.  For å gjøre
 629 det, høyreklikk med musa i fremviservinduet, velg menyvalget for
 630 undertekst og så norsk språk.  Jeg testet også '--write-auto-sub',
 631 men det kommandolinjeargumentet ser ikke ut til å fungere, så jeg
 632 endte opp med settet med argumentlisten over, som jeg fant i en
 633 feilrapport i youtube-dl-prosjektets samling over feilrapporter.</p>
 634
 635 <p>Denne støtten i youtube-dl gjør det svært enkelt å lagre
 636 NRK-innslag, det være seg nyheter, filmer, serier eller dokumentater,
 637 for å ha dem tilgjengelig for fremtidig referanse og bruk, uavhengig
 638 av hvor lenge innslagene ligger tilgjengelig hos NRK.  Så får det ikke
 639 hjelpe at NRKs jurister mener at det er
 640 <a href="http://people.skolelinux.org/pere/blog/Best___ikke_fortelle_noen_at_streaming_er_nedlasting___.html">vesensforskjellig
 641 å legge tilgjengelig for nedlasting og for streaming</a>, når det rent
 642 teknisk er samme sak.</p>
 643
 644 <p>Programmet youtube-dl støtter også en rekke andre nettsteder, se
 645 prosjektoversikten for
 646 <a href="http://rg3.github.io/youtube-dl/supportedsites.html">en
 647 komplett liste</a>.</p>
 648 </div>
 649       <div class="tags">
 650
 651
 652         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software</a>, <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>, <a href="http://people.skolelinux.org/pere/blog/tags/web">web</a>.
 653
 654
 655       </div>
 656     </div>
 657     <div class="padding"></div>
 658
 659     <div class="entry">
 660       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Stortingsflertallet_g_r_inn_for_ny_IP_basert_sensurinfrastruktur_i_Norge.html">Stortingsflertallet går inn for ny IP-basert sensurinfrastruktur i Norge</a></div>
 661       <div class="date">24th April 2018</div>
 662       <div class="body"><p><a href="https://www.vg.no/sport/i/J1g8zj/stortingsvedtak-snart-ip-blokkerer-utenlandske-spillselskaper">VG</a>,
 663 <a href="https://www.dagbladet.no/nyheter/stortinget-blokkerer-utenlandske-spillselskaper/69740219">Dagbladet</a>
 664 og
 665 <a href="https://www.nrk.no/ostfold/tar-opp-kampen-mot-utenlandske-spillselskap-1.14021381">NRK</a>
 666 melder i dag at flertallet i Familie- og kulturkomiteen på Stortinget
 667 har bestemt seg for å introdusere en ny sensurinfrastruktur i Norge.
 668 Fra før har Norge en «frivillig» sensurinfrastruktur basert på
 669 DNS-navn, der de største ISP-ene basert på en liste med DNS-navn
 670 forgifter DNS-svar og omdirigerer til et annet IP-nummer enn det som
 671 ligger i DNS.  Nå kommer altså IP-basert omdirigering i tillegg.  Når
 672 infrastrukturen er på plass, er sensur av IP-adresser redusert et
 673 spørsmål om hvilke IP-nummer som skal blokkeres.  Listen over
 674 IP-adresser vil naturligvis endre seg etter hvert som myndighetene
 675 endrer seg.  Det er ingen betryggende tanke.</p>
 676 </div>
 677       <div class="tags">
 678
 679
 680         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>, <a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet</a>.
 681
 682
 683       </div>
 684     </div>
 685     <div class="padding"></div>
 686
 687     <div class="entry">
 688       <div class="title"><a href="http://people.skolelinux.org/pere/blog/En_grunn_til___takke_nei_til_usikker_digital_post.html">En grunn til å takke nei til usikker digital post</a></div>
 689       <div class="date"> 2nd April 2018</div>
 690       <div class="body"><p>Brevpost er beskyttet av straffelovens bestemmelse som gjør det
 691 kriminelt å åpne andres brev.  Dette følger av (ny) straffelovs
 692 <a href="https://lovdata.no/dokument/NL/lov/2005-05-20-28/§205">§ 205
 693 (Krenkelse av retten til privat kommunikasjon)</a>, som sier at «Med
 694 bot eller fengsel inntil 2 år straffes den som uberettiget ...  c)
 695 åpner brev eller annen lukket skriftlig meddelelse som er adressert
 696 til en annen, eller på annen måte skaffer seg uberettiget tilgang til
 697 innholdet.» Dette gjelder såvel postbud som alle andre som har
 698 befatning med brevet etter at avsender har befatning med et lukket
 699 brev. Tilsvarende står også tidligere utgaver av den norske
 700 straffeloven.</p>
 701
 702 <p>Når en registrerer seg på usikre digitale postkasseløsningene, som
 703 f.eks. Digipost og e-Boks, og slik tar disse i bruk, så gir en de som
 704 står bak løsningene tillatelse til å åpne sine brev.  Dette er
 705 nødvendig for at innholdet i digital post skal kunne vises frem til
 706 mottaker via tjenestens websider.  Dermed gjelder ikke straffelovens
 707 paragraf om forbud mot å åpne brev, da tilgangen ikke lenger er
 708 uberettiget.  En gir altså fremmede tilgang til å lese sin
 709 korrespondanse.  I tillegg vil bruk av slike usikre digitale
 710 postbokser føre til at det blir registrert når du leser brevene, hvor
 711 du befinner deg (vha. tilkoblingens IP-adresse), hvilket utstyr du
 712 bruker og en rekke annen personlig informasjon som ikke er
 713 tilgjengelig når papirpost brukes.  Jeg foretrekker at det er
 714 lovmessig beskyttelse av min korrespondanse, som jo inneholder privat
 715 og personlig informasjon.  Det bidrar til litt bedre vern av personlig
 716 integritet i dagens norske samfunn.</p>
 717 </div>
 718       <div class="tags">
 719
 720
 721         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>, <a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>, <a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>.
 722
 723
 724       </div>
 725     </div>
 726     <div class="padding"></div>
 727
 728     <div class="entry">
 729       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Self_appointed_leaders_of_the_Free_World.html">Self-appointed leaders of the Free World</a></div>
 730       <div class="date">22nd March 2018</div>
 731       <div class="body"><p>The leaders of the worlds have started to congratulate the
 732 re-elected Russian head of state, and this causes some criticism.  I
 733 am though a little fascinated by a comment from USA senator John McCain,
 734 <a href="http://thehill.com/homenews/senate/379339-mccain-rips-trumps-congratulatory-call-to-putin-as-insult-to-russian-people">sited
 735 by The Hill and others</a>:
 736
 737 <p><blockquote>
 738 <p>"An American president does not lead the Free World by
 739 congratulating dictators on winning sham elections."</p>
 740 </blockquote></p>
 741
 742 <p>While I totally agree with the senator here, the way the quote is
 743 phrased make me suspect that he is unaware of the simple fact that USA
 744 have not lead the Free World since at least before its government
 745 <a href="https://en.wikipedia.org/wiki/Maher_Arar">kidnapped a
 746 completely innocent Canadian citizen in transit on his way home to
 747 Canada via John F. Kennedy International Airport in September 2002 and
 748 sent him to be tortured in Syria for a year</a>.</p>
 749
 750 <p>USA might be running ahead, but the path they are taking is not the
 751 one taken by any Free World.</p>
 752 </div>
 753       <div class="tags">
 754
 755
 756         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 757
 758
 759       </div>
 760     </div>
 761     <div class="padding"></div>
 762
 763     <p style="text-align: right;"><a href="index.rss"><img src="http://people.skolelinux.org/pere/blog/xml.gif" alt="RSS feed" width="36" height="14" /></a></p>
 764     <div id="sidebar">
 765
 766
 767
 768 <h2>Archive</h2>
 769 <ul>
 770
 771 <li>2018
 772 <ul>
 773
 774 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/01/">January (1)</a></li>
 775
 776 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/02/">February (5)</a></li>
 777
 778 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/03/">March (5)</a></li>
 779
 780 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/04/">April (3)</a></li>
 781
 782 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/06/">June (2)</a></li>
 783
 784 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/07/">July (4)</a></li>
 785
 786 </ul></li>
 787
 788 <li>2017
 789 <ul>
 790
 791 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 792
 793 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 794
 795 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 796
 797 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 798
 799 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 800
 801 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 802
 803 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 804
 805 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 806
 807 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 808
 809 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/11/">November (3)</a></li>
 810
 811 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/12/">December (4)</a></li>
 812
 813 </ul></li>
 814
 815 <li>2016
 816 <ul>
 817
 818 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 819
 820 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 821
 822 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 823
 824 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 825
 826 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 827
 828 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 829
 830 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 831
 832 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 833
 834 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 835
 836 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 837
 838 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 839
 840 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 841
 842 </ul></li>
 843
 844 <li>2015
 845 <ul>
 846
 847 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 848
 849 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 850
 851 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 852
 853 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 854
 855 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 856
 857 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 858
 859 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 860
 861 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 862
 863 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 864
 865 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 866
 867 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 868
 869 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 870
 871 </ul></li>
 872
 873 <li>2014
 874 <ul>
 875
 876 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 877
 878 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 879
 880 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 881
 882 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 883
 884 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 885
 886 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 887
 888 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 889
 890 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 891
 892 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 893
 894 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 895
 896 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 897
 898 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 899
 900 </ul></li>
 901
 902 <li>2013
 903 <ul>
 904
 905 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 906
 907 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 908
 909 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 910
 911 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 912
 913 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 914
 915 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 916
 917 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 918
 919 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 920
 921 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 922
 923 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 924
 925 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 926
 927 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 928
 929 </ul></li>
 930
 931 <li>2012
 932 <ul>
 933
 934 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 935
 936 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 937
 938 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 939
 940 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 941
 942 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 943
 944 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 945
 946 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 947
 948 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 949
 950 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 951
 952 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 953
 954 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 955
 956 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 957
 958 </ul></li>
 959
 960 <li>2011
 961 <ul>
 962
 963 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 964
 965 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 966
 967 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 968
 969 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 970
 971 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 972
 973 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 974
 975 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 976
 977 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 978
 979 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 980
 981 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 982
 983 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 984
 985 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 986
 987 </ul></li>
 988
 989 <li>2010
 990 <ul>
 991
 992 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 993
 994 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 995
 996 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 997
 998 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 999
1000 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
1001
1002 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
1003
1004 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
1005
1006 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
1007
1008 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
1009
1010 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
1011
1012 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
1013
1014 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
1015
1016 </ul></li>
1017
1018 <li>2009
1019 <ul>
1020
1021 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
1022
1023 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
1024
1025 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
1026
1027 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
1028
1029 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
1030
1031 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
1032
1033 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
1034
1035 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
1036
1037 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
1038
1039 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
1040
1041 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
1042
1043 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
1044
1045 </ul></li>
1046
1047 <li>2008
1048 <ul>
1049
1050 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
1051
1052 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
1053
1054 </ul></li>
1055
1056 </ul>
1057
1058
1059
1060 <h2>Tags</h2>
1061 <ul>
1062
1063  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (16)</a></li>
1064
1065  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
1066
1067  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
1068
1069  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
1070
1071  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (9)</a></li>
1072
1073  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (17)</a></li>
1074
1075  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
1076
1077  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
1078
1079  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (160)</a></li>
1080
1081  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (158)</a></li>
1082
1083  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (4)</a></li>
1084
1085  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
1086
1087  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (17)</a></li>
1088
1089  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (25)</a></li>
1090
1091  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
1092
1093  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (378)</a></li>
1094
1095  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
1096
1097  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (13)</a></li>
1098
1099  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (32)</a></li>
1100
1101  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
1102
1103  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (18)</a></li>
1104
1105  <li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
1106
1107  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (42)</a></li>
1108
1109  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (16)</a></li>
1110
1111  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (20)</a></li>
1112
1113  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
1114
1115  <li><a href="http://people.skolelinux.org/pere/blog/tags/lego">lego (4)</a></li>
1116
1117  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
1118
1119  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
1120
1121  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
1122
1123  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
1124
1125  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (41)</a></li>
1126
1127  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (10)</a></li>
1128
1129  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (299)</a></li>
1130
1131  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (190)</a></li>
1132
1133  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (33)</a></li>
1134
1135  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
1136
1137  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (71)</a></li>
1138
1139  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (107)</a></li>
1140
1141  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
1142
1143  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
1144
1145  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
1146
1147  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
1148
1149  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (10)</a></li>
1150
1151  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
1152
1153  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (6)</a></li>
1154
1155  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
1156
1157  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (54)</a></li>
1158
1159  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
1160
1161  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
1162
1163  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (55)</a></li>
1164
1165  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (6)</a></li>
1166
1167  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (12)</a></li>
1168
1169  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (55)</a></li>
1170
1171  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (4)</a></li>
1172
1173  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
1174
1175  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
1176
1177  <li><a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (11)</a></li>
1178
1179  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (66)</a></li>
1180
1181  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
1182
1183  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (41)</a></li>
1184
1185 </ul>
1186
1187
1188     </div>
1189     <p style="text-align: right">
1190  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
1191 </p>
1192
1193   </body>
1194 </html>