[Bug 50655] ATI RV670 [Radeon HD 3870] Ioquake games causes GPU lockup (waiting for 0x00003039 last fence id 0x00003030)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=50655

--- Comment #12 from Alex Deucher <agd5f at yahoo.com> 2012-06-07 07:16:57 PDT ---
I think I know what's going on here.  There's a hw bug on r6xx where you need
to re-emit a CB register if some state further up the pipeline changes even if
the CB state has not changed.  I remember fixing it in r600c, but I can't find
the commit...

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