[Xen-users] Radeon 7770 fglrx Dom0 GL glitches

[Howell Tam <pigeon@xxxxxxxxxxx>]

Hi,

        I'm using a Radeon HD 7770 on a Linux Dom0, using the closed
source fglrx driver (13.1).

        For certain 3d games, I'm seeing this weird glitches. It
feels like the alpha channel for certain textures are not
working properly.

        Screenshots:

        Normal Linux:
        http://en.zimagez.com/zimage/screenshot-280113-185031.php

        Dom0:
        http://en.zimagez.com/zimage/screenshot-280113-211459.php


        The normal linux host and the dom0 are running the same system,
i.e. same kernel, debian, same fglrx driver, etc. Although of course
Dom0 was setup to have less memory and cpu than when running as the
normal host.


        Mind you, this could well be an fglrx bug, and, this bug only
happens with my Radeon HD 7770. I also have an HD 6770 and it does not
have the same problem. But since the problem only occurs with Xen Dom0,
maybe this has exposed some weird bug?

        And FWIW, the card under domU with VGA passthrough is fine too.


        Thanks.


-- 
Regards,
Howell.


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