[Intel-gfx] XVideo triggering GPU Hangs on i8xx
Christopher James Halse Rogers
christopher.halse.rogers at canonical.com
Wed Jun 30 17:45:11 PDT 2010
On Wed, 2010-06-30 at 09:11 +0100, Glen Gray wrote:
> Hey Guys,
> I'm testing out 2.11/18.104.22.168-124(Fedora 13) on our embedded panel pc hardware. It's got an 855GM/ICH4 chipset. On previous versions of the drivers, in Fedora 12 for example, XVideo extension wasn't reported as available. On Fedora 13 with the 2.11/22.214.171.124 kernel, XVideo is reported. However, when attempting to use it, a gpu hang is triggered.
> Is XVideo extension expected to work on i8XX hardware ?
We've seen similar issues on Ubuntu (albeit with the 2.9 DDX). I'd
guess it's a manifestation of the i855 GTT coherency bug¹ (or is another
bug masked by that).
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