On 8 November 2010 21:07, Chris Rouch <chris.rouch@xxxxxxxxx> wrote: > On 8 November 2010 17:13, Rex Dieter <rdieter@xxxxxxxxxxxx> wrote: >> On 11/08/2010 03:02 AM, Chris Rouch wrote: >>> Over the weekend yum pulled in the newest version of kde for f13 >>> (4.5.2 I think). Since I rebooted and logged in my laptop seems to >>> have the fan going most of the time. Gkrellm shows both CPUs are doing >>> something, and top confirms that kwin and plasma desktop are each >>> using between 10% and 30% CPU. For comparison on my f12 desktop at >>> work they use between 2 and 5% cpu. I don't know what the used before >>> the upgrade, but I do know the fan was usually off except when the >>> machine was loaded. >>> >>> This happens with only one window (firefox), and that only having a >>> couple of tabs open. >>> >>> Is this something I can change? If so, where do I need to look? >> >> Depends on a lot of things. >> >> What video driver is in use? > > Latest nvidia, from rpmfusion >> >> What arch? > > x86_64 > >> >> Is flash installed, and any applets running in any of those flash tabs >> you mention? > > Yes it is installed, but none of the tabs are visibly using it (I > had/have gmail and a bbc news page open - the latter is static). > >> >> Are destkop effects enabled? Which effects? (blur in particular, is >> known to cause degraded performance/load with many driver combinations). > > Desktop effects are enabled. I had blur enabled and I've just disabled > it. No immediate effect - the fan is still spinning, though the cpu > percentages are now down to 10-15%. > > Switching off all desktop effects makes a big difference. kwin is no > longer in top's list of cpu hogs, and plasma desktop sits around 1% > until I actually do something, when it goes to around 15%. > I think it was shadow that was actually doing the damage on my laptop. I started disabling the effects I didn't care about until the cpu dropped. Chris _______________________________________________ kde mailing list kde@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kde New to KDE4? - get help from http://userbase.kde.org
