[Bug 5876] big xvideo issues with ATI Radeon RV100 family (Mobility M6 LY, ...)

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https://bugs.freedesktop.org/show_bug.cgi?id=5876          
     




------- Additional Comments From drzeus-bugzilla at drzeus.cx  2006-12-04 10:43 -------
Removing just that call to OUTPLL is insufficient, so there is something more to it.

I've been trying to get my test program to provoke the bug, but no luck so far.

It seems the movies that trigger the problem are also those heavily compressed,
and hence CPU hungry. So perhaps there is some race in the driver where you
check some register, do something else, then act on that register. And in the
cases where X doesn't get enough CPU time, that action is now wrong because the
register has changed.

I can't really decrypt the register jumble going on in these routines so I'm
having trouble checking this myself. :)          
     
     
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