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https://github.com/X11Libre/xf86-video-ati.git
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a88985f5d1
If we set a mode while a flip is pending, the kernel driver may program the flip to the hardware after the modeset. If that happens, the hardware will display the BO from the flip, whereas we will assume it displays the BO from the modeset. In other words, the display will most likely freeze, at least until another modeset. Prevent this condition by waiting for a pending flip to finish before setting a mode. Fixes display freezing when setting rotation or a transform with TearFree enabled. Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
xf86-video-ati - ATI Radeon video driver for the Xorg X server
All questions regarding this software should be directed at the
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The master development code repository can be found at:
git://anongit.freedesktop.org/git/xorg/driver/xf86-video-ati
http://cgit.freedesktop.org/xorg/driver/xf86-video-ati
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http://www.x.org/wiki/Development/Documentation/SubmittingPatches
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http://wiki.x.org/wiki/GitPage