[Bug 109217] Re: blender ui garbled

[Sandro Giessl]

I had the problem of a garbled blender GUI as well:
- switching the active windows sometimes resulted in the contents of the blender window sticking at the top, hiding all other windows
- after switching back to blender, some parts of the contents couldn't be redrawn correctly (usually this could be fixed be changing UI modes or hovering all areas of the window with the mouse)

My system: IBM Thinkpad T41 with an ATI Radeon Mobility 7500

Finally I was able to fix the problem for me by turning off the
composite extension which is turned on by default:

- /etc/X11/xorg.conf:
Section "Extensions"
  Option "Composite" "Disable"
EndSection

- For what it's worth, this is my device section of /etc/X11/xorg.conf (does not seem to be related to this blender rendering glitch):
Section "Device"
        Identifier      "ATI Technologies Inc Radeon Mobility M7 LW [Radeon Mobility 7500]"
        Driver          "ati"
        BusID           "PCI:1:0:0"

# fix redraw slowness in jaunty! 20090502
 Option "AccelMethod" "EXA"
 Option "MigrationHeuristic" "greedy"
 Option "AccelDFS" "true"
 Option "EnablePageFlip" "true"
 Option "EnableDepthMoves" "true"
EndSection

-- 
blender ui garbled
https://bugs.launchpad.net/bugs/109217
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