[Bug 75121] Intel Pstate driver - powersave mode - CPU frequency too low

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https://bugzilla.kernel.org/show_bug.cgi?id=75121

--- Comment #16 from Dirk Brandewie <dirk.brandewie@xxxxxxxxx> ---
(In reply to Doug Smythies from comment #15)
> Created attachment 135151 [details]
> Just another method I tried. Phoronix ffmpeg test is as fast as performance
> mode with this method.
> 
> Hi Dirk: Did you ever figure out for certain why some had the CPU freq
> remains high after suspend issue? It remains unclear to me, and I do not
> know how to even try to re-create here on my test computer.
> 

I could make it happen occasionally on my ivy bridge laptop test system.

I think it have to the hardware coordination on the chip but I haven't
proven that.

> References (some but not all):
> https://bugzilla.kernel.org/show_bug.cgi?id=66581#c21
> https://bugzilla.kernel.org/show_bug.cgi?id=66581#c26

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