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Old 11-02-10, 10:49 AM   #6
NVIDIA Corporation
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Join Date: Mar 2005
Posts: 2,487
Default Re: glX VSYNC does not work with ACER GD245HQ

Check /var/log/Xorg.0.log to see if UBB is getting disabled for some reason. Also, please make sure that no other OpenGL applications are running at the same time. It can only swap by flipping when one OpenGL application is visible.
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