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Bug#559513: plasma-widgets-workspace should recommend cpufrequtils



Xavier Vello wrote:
>> The power management plasmoid contained in plasma-widgets-workspace has the
>>  ability to switch between supported CPU policies ("More..." ->
>>  "Capabilities"). However, this requires that the relevant kernel modules
>>  that implement these policies are loaded; otherwise no CPU policies are
>>  available. Loading the relevant kernel modules is the job of the
>>  cpufrequtils package. Hence, plasma-widgets-workspace should recommend the
>>  cpufrequtils package to the user when being installed.
> 
> Hello
> 
> First, the recommend should be put on the kdebase-workspace-bin package, as 
> the component responsible for power management is powerdevil (in kdebase-
> workspace) and not plasma (which is just an interface to the daemon).
> 
> I agree that /etc/init.d/loadcpufreq is in the cpufrequtils package and is the 
> easier way to ensure the governor modules are loaded, although powerdevil 
> doesn't use /usr/bin/cpufreq*

Is kdebase-workspace-bin accessing this interface directly via /sys or does it
use hal (via Solid) for that? If the latter, it would probably be better if hal
declared such a dependency.
FWIW, hal currently recommends pm-utils which in turn suggests cpufrequtils.

Another option could be, to compile the cpufreq* modules statically into the
Debian kernel. I would argue that all x86 cpus sold today have power management
capability so enabling them by default might be a good idea (unless there a
regressions in certain areas).

Michael
-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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