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Old 11-21-11, 11:00 AM   #1
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Join Date: May 2010
Posts: 8
Default OpenGL tearing on two headed display

We are currently experiencing issues rendering video using OpenGL to multiple windows on a two headed display using TwinView on a PNY Quadro FX-3800 card. We use glXSwapInterval to synchronize the frame buffer swap with vblank, but are still unable to get tear-free rendering in all three windows. I've attached some sample source code which opens up three windows and renders a vertical black bar moving across the window which makes the tearing apparent as well as the xorg.conf that we are using. Any suggestions would be appreciated.

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File Type: gz GL-tearing.tar.gz (2.5 KB, 42 views)
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