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Old 07-26-2010, 08:49 AM   #1
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Registered: Jul 2010
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Window redrawing problem under KDE


I've installed Mandriva 2010.1 and I've a problem with window redrawing when I scroll : some parts of the window does do not update (under Firefox, konsole and other apps). It is very annoying, particularly with the console and firefox.

I use xrandr for dual heads / screens (xrandr --output "HDMI-0" --auto --output "DVI-0" --auto --right-of "HDMI-0")

My config :
- KDE 4.4.3
- Video card : Radeon HD 3850 (RV670PRO)
- Xorg 7.5 with "ati" driver (free ati driver, not fglrx)

Some other infos :
- if I don't use xrandr (single screen) : the problem disappear...
- if 3D effects (composite) are enabled/disabled the problem is still here...
- I've tried to use proprietary driver (fglrx) but I'm not able to enable 3D effects...

thanks for your help,

Old 07-27-2010, 11:52 AM   #2
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Registered: Jul 2010
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[SOLVED] Window redrawing problem under KDE

I reply to myself :
It seems to be a bug in xorg-server-1.7 :
I solved my problem by enabling KMS (kernel mode-setting) :
Now, it seems to work fine...

Old 08-01-2010, 05:45 PM   #3
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Registered: Nov 2007
Distribution: OpenSuSE, Gentoo
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There were similar issues with fglrx driver and Firefox
In my case it seems to be fixed by removing the line: Option "AccelMethod" "EXA" from xorg.conf


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