Bug#528596: gnome-power-manager: cpu scaling does not work anymore

[Benoît Dejean]

Le vendredi 15 mai 2009 à 01:12 +0200, Josselin Mouette a écrit :
> Le jeudi 14 mai 2009 à 19:43 +0200, Benoît Dejean a écrit :
> > polkit-auth  | grep cpufreq
> > org.freedesktop.hal.power-management.cpufreq
> > 
> > but gpm doesnot scale anything, nore switched to powersave on battery.
> 
> I think this is expected. It is wrong to change the setting to
> powersave, whether on battery or not, and it is a bad idea to set the
> frequency by hand. See the following postings for explanations.
> 
> http://mjg59.livejournal.com/88608.html
> http://mjg59.livejournal.com/101706.html

I mean: my gpm is configured to use userspace on AC and powersave on
battery (i can't see the UI ... but there definitely are gconf keys).
When on AC, gpm doesn't scale my CPU, so it runs at full speed all the
time. When i unplugg, CPU governor doesn't change to powersave, so CPU
stays at full speed.

OK, mjg59 says that i may not want to use powersave.
On my laptop, using actually means:
- long battery
- less heat
- much less fan noise
- make sure CPU is stuck at low speed.

> If you really want to set it, you can do it with the CPU frequency
> applet in gnome-applets. (Actually I don’t even know how to do that with
> g-p-m.)

Which works totally fine ... but that's no autoscaling and it doesn't
switch automatically to powersave.
-- 
Benoît Dejean
GNOME http://www.gnomefr.org/
LibGTop http://directory.fsf.org/libgtop.html
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