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