KDE 4.4 RC1 bad composite performance

Nikos Chantziaras realnc at arcor.de
Thu Jan 21 17:59:44 GMT 2010

On 01/16/2010 09:14 PM, Dotan Cohen wrote:
>> I updated from KDE 4.3.4/Qt 4.5.3 to 4.4 RC1/Qt 4.6.0.  I noticed that
>> desktop effects took a huge performance hit (desktop cube rotation for
>> example is jerky with lots of frame skippint).  Is this normal?  I hope not?
> I can confirm that in the short time I was using the 4.4 RC1 I
> disabled the Wobbly Windows effect as it was jerky and frame skipping.
> ATI x1400 Mobile Radeon card, FOSS drivers, Kubuntu 9.10.

I was using the closed Catalyst driver with X.Org 7.4.  I now updated to 
X.Org 7.5 and switched to the open source "radeon" driver.  The speed 
problems are gone now, so it might be that the new KDE doesn't play well 
with X.Org 7.4.  Which version are you using?

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