I've noticed high CPU temps even with Dynamic CPU Freq set, so this weekend I set out to investigate... the offending process is kwin, and only when desktop effects are on... it jumps to 90%-ish every few seconds, which in turn keeps my AMD 3800 running at full 2400 instead of going down to 1000 as it should when everything else is idle. So my temps which should be at 35 are at 50+.
So, if I turn off desktop effects that "fixes" it, but of course that is not an option, so I started to turn on and off different effects thinking that one of them was causing the problem, but no one change seemed to help.
So I turned on Show FPS just to see how well it was performing, and then magic happened... the kwin jumps went down to 15% CPU which was enough to keep my freq at 1000 and drop my temps to where they should be... but, WHY? Why does reporting out the fps fix it? And of course, this isn't a permanent fix, since i hardly want the fps on my desktop at all times, but what the heck?
Anyone?
So, if I turn off desktop effects that "fixes" it, but of course that is not an option, so I started to turn on and off different effects thinking that one of them was causing the problem, but no one change seemed to help.
So I turned on Show FPS just to see how well it was performing, and then magic happened... the kwin jumps went down to 15% CPU which was enough to keep my freq at 1000 and drop my temps to where they should be... but, WHY? Why does reporting out the fps fix it? And of course, this isn't a permanent fix, since i hardly want the fps on my desktop at all times, but what the heck?
Anyone?
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