On 2025-05-16, Vitaliy Makkoveev wrote:
> I can't answer to the first question, but I can describe the current
> behavior. Set hw.perfpolicy to "auto", start firefox, play something
> from youtube. The hw.cpuspeed will be the most times 400, sometimes it
> will be raised to 2501. No frequencies between the minimum 400 and
> the maximum 2501, it will spent more than 90% times with 400. Sound is
> broken. With this diff the frequency will permanently scale from 400 to
> 2501, the most times in the middle. Sound is not broken, I could say my
> gnome session works acceptable.

I have a similar laptop here, I can do some experiments. Maybe they 
will behave similarly. setperf no longer does what it was supposed to, 
but I think for most machines that's a good thing. They do a better 
job, but sometimes we steer them in the wrong direction. I was poking 
around on a different laptop, but I try again.