CPU power saving settings from KDE

[Yvan Masson]

Hi Nate,

Thank you for the detailed answer. I will have to take a look on that, 
as it looks like to be exactly what I was looking for :-).

Regards,
Yvan

Le 02/01/2023 à 16:36, Nate Graham a écrit :
> Hello Yvan,
> 
> Plasma more or less supports doing this, using the power-profiles-daemon 
> system[1], which integrated with the low-level kernel drivers specific 
> to the CPU. If you install the power-profiled-daemon package, you should 
> see a "Power Profile" slider appear in your Battery & Brightness widget 
> popup, allowing control over the power usage.
> 
> It's not exactly what you're looking for, but it should serve the same 
> purpose if your hardware supports it. More and more hardware should 
> support it over time.
> 
> If your hardware doesn't support it, there's a 3rd-party widget called 
> something like intel-pstate-settings that I used to use which allows 
> control over the CPU frequency and governor directly. Be warned that 
> it's quite easy to accidentally configure your CPU to use *more* power 
> than before when using these low-level tools, so it pays to do your 
> research first.
> 
> 
> Nate
> 
> 
> [1] https://gitlab.freedesktop.org/hadess/power-profiles-daemon
> 
> 
> 
> 
> On 1/2/23 06:37, Yvan Masson wrote:
>> Hi,
>>
>> This might be a bit off topic, sorry. I have not subscribed to the list.
>>
>> Energy efficient software is very important, but adjusting hardware 
>> settings to save energy is also a good thing. For example, there is 
>> currently no way from KDE to set CPU maximum speed / CPU governor. I 
>> believe it is one of the more useful setting with monitor brightness, 
>> and reducing CPU speed does not risk to cause weird hardware issues 
>> either. I think it is possible from Windows 10/11.
>>
>> Regards,
>> Yvan
>>
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