Mailinglist Archive: opensuse (1046 mails)

[xPol <xtekhne@xxxxxxxxx>]

Sven Burmeister wrote:

> Am Dienstag, 15. März 2011, 17:59:00 schrieb xPol:
> > I have just switched to 11.4 (kde) and noticed that i cannot set the cpu
> > frequency in powersave mode.> 
> That's a feature, it does not make sense to set the frequency manually.

Is has. It helps to keep my laptop at noticeable lower temperature. 
Any other way to do that?
 
> > Although the power manager profile is set to 'powersave', my cpu
> > frequency spends most of the time at its max value.
>
> Run powertop so see what is causing this.

Here below the output of power top. Any hits to understand messages?

Thank you 
--p

---- powertop output:

Top causes for wakeups:
  43.6% (457.1)   PS/2 keyboard/mouse/touchpad interrupt
  23.9% (250.2)   [kernel scheduler] Load balancing tick
  12.2% (128.1)   [i915, eth0] <interrupt>
  10.0% (104.6)   rekonq
   1.9% ( 20.0)   knotify4
   1.4% ( 14.9)   Xorg
   1.4% ( 14.6)   plasma-desktop
   0.7% (  7.8)   [ata_piix] <interrupt>
   0.6% (  6.7)   kmail

Suggestion: increase the VM dirty writeback time from 5.00 to 15 seconds 
with:
  echo 1500 > /proc/sys/vm/dirty_writeback_centisecs
Suggestion: Enable the CONFIG_INOTIFY kernel configuration option.
This option allows programs to wait for changes in files and directories
instead of having to poll for these changes


no ACPI power usage estimate available

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