I have the same problem with KDE with nvidia drivers - it seems
worse
with the latest ones from rpmfusion, and worse in 4.5 compared to
4.4. (Not sure when the change came in, first betas of 4.5 seemed
fine).
There are a bunch of bug reports already (eg
https://bugs.kde.org/show_bug.cgi?id=234463) - though there seem to be
multiple issues and a lot of noise in the bug reports. For me, turning
off the blur effect helps, but not much. On my laptop I have switched
to gnome for the moment as it gives me approx 50% more battery life in
normal use (OO Word + calc, kmail, firefox, amarok, R etc) than same
apps under kde. KDE apps under gnome are a pain though (you have to
start kmail twice to get akonadi running first, super slow scrolling
in akregator etc etc).
Nouveau didn't work well for me last time I tried, but will probably
make the jump to F14 and try again sometime soon.
sorry!
M.
2010/11/8 Manuel Escudero <Jmlevick(a)gmail.com>:
>
>
> 2010/11/8 Rex Dieter <rdieter(a)math.unl.edu>
>>
>> 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?
>>
>> What arch?
>>
>> Is flash installed, and any applets running in any of those flash tabs
>> you mention?
>>
>> Are destkop effects enabled? Which effects? (blur in particular, is
>> known to cause degraded performance/load with many driver combinations).
>>
>> -- Rex
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>>
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>> New to KDE4? - get help from
http://userbase.kde.org
>
>
> 1.- Reset your KDE Settings by deleting the ".kde" folder of your home
> folder
> 2.- Disable all desktop effects
> 3.- Get Chrome or another browser
> 4.- Customize your KDE as you like
>
> --
> <-Manuel Escudero->
> Linux User #509052
> @GWave: jmlevick(a)googlewave.com
> @Blogger:
http://www.blogxenode.tk/ (Xenode Systems Blog)
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>
>
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>
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>
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@moabi2000: Try out to reset your KDE settings as I mentioned before, then
turn off the desktop effects
and see if KDE's behavior get's better. About the Opensource Graphics
drivers a lot of people say that they
work great in F14!! Make the switch if you want.
--
<-Manuel Escudero->
Linux User #509052
@GWave: jmlevick(a)googlewave.com
@Blogger:
(Xenode Systems Blog)
PGP/GnuPG: DAE3 82E9 D68E 7AE4 ED31 1F8F 4AF4 D00C 50E7 ABC6