Description of problem: With the recent update to mesa 7.7.3 I started to have some screen corruptions when, for example, moving or resizing windows in my 22'' external monitor. There are couple of conditions to make this happen with this screen: 1 - It only happens with KMS enabled; 2- Even with KMS enabled, if the laptop screen is also turned on, there are no corruptions; 3 - The screen resolution must be set to maximum: 1920x1080, otherwise I have no screen corruptions once more. So, this happens with KMS + Full res + laptop screen OFF. Note that I also have mesa-dri-drivers-experimental installed. The screen is a Compaq Q2159. I'm attaching xorg.conf and lspci -v.
Created attachment 387424 [details] xorg.conf
Created attachment 387425 [details] lspci-v
Forgot I had compiz running, disabling it made corruptions go away. This should be closed then? or moved to compiz?
Sorry about that, but with metacity with composite there are still some corruptions (some little black line while scrolling, with compiz the lines are much thicker and visible). With no composite they are apparently gone.
This is fixed in F13.
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