Red Hat Bugzilla – Bug 351551
gnome-power-manager lets the laptop die without power
Last modified: 2013-03-05 22:53:33 EST
Description of problem:
Although I have set gpm to hibernate when battery is critical, and it dispatches
the warning, the laptop never hibernates - power gets cut off, probably by
battery safety circuits.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. unplug the AC cord
laptop dies once battery is empty
laptop hibernates prior to that
If my memory serves me well, this has been working OK in Fedora 7. I took a look
at loading history, and after the warning the line got bright green (lid closed)
for a while, although lid was certainly opened. Maybe the wrong event is
dispatched? This seems quite serious regression, so setting it to blocker.
Works fine here. In fact I just woke this laptop up from an automatic hibernate.
There's a lot of things that can go wrong with battery charge estimates, because
the information from the hardware is frequently unreliable or just plain wrong -
see Richard's post here:
gnome-power-manager gets better at estimating battery life over time. This
laptop used to die before hibernating, but it seems much more accurate about
battery life now, and it always suspends before the battery dies. How long have
you been running rawhide on your machine?
I am running rawhide here since test3. It seems that estimates are fine, since
right before the laptop died gpm was showing 1% of power left, IMHO high time to
hibernate (or poweroff if user chooses so). Is it possible to disable profiling?
It was not present in F7 and everything was OK. Besides, the "green line issue"
For reference: this is a Toshiba Satellite A100-847 laptop, aka A105 in the USA.
Created attachment 239111 [details]
The issue just happened again. The led was blinking warning about low power,
gpm warned the laptop was going to hibernate, but nothing happened. Take a look
at the end of the curve - green colour (lid closed, but it was open all the
time, and the remaining capacity going up). What is more, the tip that warned
about hibernate reported 0% remaining power, which was inconsistent with what
hovering over gpm icon was saying.
This still happens. Where can I find some kind of logs I could provide to fix
the issue? Or disable this whole profiling thing, which clearly does not work