ok removed the options from Xorg.conf. It does not matter for the
AccelMethod as I suspect the PPA ati driver is using EXA anyway. Now the
corruption is less likely, but it is different one, mostly text font
tearing.
Section "Screen"
Identifier "Configured Screen Device"
Device "Configured Video Device"
SubSection "Display"
Virtual 3080 1050
EndSubSection
EndSection
Section "Device"
Identifier "Configured Video Device"
#Option "EXANoComposite" "true"
#Option "TripleBuffer" "true"
#Option "EnablePageFlip" "true"
#Option "EnableDepthMoves" "true"
#Option "MigrationHeuristic" "smart"
Option "AccelMethod" "XAA"
#Option "RenderAccel" "true"
#Option "AccelDFS" "true"
#Option "DynamicClocks" "on" #This is for
laptop users, it saves energy when in battery mode.
#Option "AGPMode" "4"
#Option "ColorTiling" "1"
#Option "DMAForXv" "1"
EndSection
Section "ServerFlags"
Option "DontZap" "False"
EndSection
** Attachment added: "screenshot_002.png"
http://launchpadlibrarian.net/30532655/screenshot_002.png
--
[KMS][R300] Screen artifacts on X
https://bugs.launchpad.net/bugs/413259
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which is the registrant for xserver-xorg-driver-ati.
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