[Bug 8938] [ATI/radeon] Xv tearing

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https://bugs.freedesktop.org/show_bug.cgi?id=8938          
     

michel at tungstengraphics.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rscheidegger at gmx.ch
         AssignedTo|xorg-team at lists.x.org       |xorg-driver-ati at lists.x.org
             Status|ASSIGNED                    |NEW




------- Additional Comments From michel at tungstengraphics.com  2006-11-30 06:59 -------
(In reply to comment #19)
> Ok, we can rule out DMA as it seems to depend on DRI, [...]

Yes, hence my suggestion from comment #4.

> 33964    74.2253  radeon_drv.so            radeon_drv.so           
> RADEONCopyMungedData
> 
> Not too surprising I suppose.

Right. You may want to double-check in /proc/mtrr that write-combining is
enabled for the framebuffer of the PCI card. If that's not the problem, another
random idea would be playing with PCI settings in the BIOS setup. Also, I'm
adding Roland Scheidegger to the CC list, he may have a pointer to a patch for
native planar YUV support, which might help somewhat.          
     
     
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