Rodney Baker wrote:
Turning of KDE4's desktop effects (i.e. suspend compositing) will drop the CPU usage to near zero again.
While true, this is only a workaround. Wasting 20% of a really powerful machine for *nothing* (it uses it even if nothing happens) is a bug and not a blemish....
Same here an my laptop, though 'only' around 18% CPU, and goes down to some 6% when deactivating compositing. Weird thing is, my system at home (also a DualCore machine with an nvidia card, though an older one) does not show this problem. Both are OS 11.2....
Pit
fwiw . . . I noticed this behavior with X for quite a while on 11.2 over several versions of the nvidia driver. It seemed to occur when I had Firefox open for a long time, having used a lot of tabs (low cpu but >600MB ram) and especially alongside kmail, again after having it open for a long time (so also using a hefty amount of ram). X would jump up to as much as 40%, but usually came back down on its own. But occasionally it stayed at the high cpu level and I noticed a response hit (this machine is 3.8GHz dual-core w/8GB ram) until restarting KDE, which would drop X back to usual. A couple months ago I searched bugzilla, but found nothing reported that fit, and I cannot reproduce the condition at will. I left it there, since it was for me only a minor occasional annoyance. Since upgrading to 11.3 (only last week), I haven't seen the behavior again. Not much help, for sure. But confirmation of what at least appears to be the same condition you are seeing. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org