+
Yesterday I updated the
+battery-stats
+package in Debian with a few patches sent to me by skilled and
+enterprising users. There were some nice user and visible changes.
+First of all, both desktop menu entries now work. A design flaw in
+one of the script made the history graph fail to show up (its PNG was
+dumped in ~/.xsession-errors) if no controlling TTY was available.
+The script worked when called from the command line, but not when
+called from the desktop menu. I changed this to look for a DISPLAY
+variable or a TTY before deciding where to draw the graph, and now the
+graph window pop up as expected.
+
+
The next new feature is a discharge rate estimator in one of the
+graphs (the one showing the last few hours). New is also the user of
+colours showing charging in blue and discharge in red. The percentages
+of this graph is relative to last full charge, not battery design
+capacity.
+
+
+
+
The other graph show the entire history of the collected battery
+statistics, comparing it to the design capacity of the battery to
+visualise how the battery life time get shorter over time. The red
+line in this graph is what the previous graph considers 100 percent:
+
+
+
+
In this graph you can see that I only charge the battery to 80
+percent of last full capacity, and how the capacity of the battery is
+shrinking. :(
+
+
The last new feature is in the collector, which now will handle
+more hardware models. On some hardware, Linux power supply
+information is stored in /sys/class/power_supply/ACAD/, while the
+collector previously only looked in /sys/class/power_supply/AC/. Now
+both are checked to figure if there is power connected to the
+machine.
+
+
If you are interested in how your laptop battery is doing, please
+check out the
+battery-stats
+in Debian unstable, or rebuild it on Jessie to get it working on
+Debian stable. :) The upstream source is available from github.
+Patches are very welcome.
+
+
As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.
+
+