Comment 12 for bug 1973434

@uengberg:

in my research for another bug/problem (https://bugs.launchpad.net/ubuntu/+source/power-profiles-daemon/+bug/1977660 - I did not yet document it there)
i found out that power profile behaviour is strange and actually i realized that the settings available in gnome *do* have a short term effect on Kernel parameters, but keep jumping back to the other setting.

Then I connected this finding mentally with the finding i made here, namely that performance is better in lxde then in gnome, and I tried to see whats happening if I completely remove the power-profile-daemon, because I though it is probably bad when a Kernel or the Thinkpad firmware cannot properly set power profiles and keepy jumping back and forth...

Wile this is only how I imagine these things working with my less than incomplete knowledge, I can says than Video playback in gnome works quite nicely after having removed the dysfunctional power-profile-daemon package.

You might try to see if that helps you too.
BTW in my case video(and accompanying audio) is/was problematic in all browsers i tested - in firefox, chrome and chromium, as well as in Zoom App(which I guess is likely an electron app). I had no chance to test is zoom works now too.

I still dont know if this all just is a symptomatic remedy or really the root cause, though.

Just as much I dont know if this really is a Kernel, a thinkpad Firmware/ACPI, or another low level library problem.

@mruffel: are there any cpu/performance tests suites we could run to make all this more measurable instead of having to say "oh run a bunch of Youtube videos and/or zoom calls and see if it starts stuttering after a while"? The thing not working properly could be video playback, but it could also just be some scheduling issue and a system that cant cope well with single processes creating short term CPU spikes, as gnome-shell does and as in Video Playback the RDD Process appears to cause.