[Bug 93706] Xorg freeze when running 3d app (Guild Wars 2) on RV620

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93706

--- Comment #10 from Dieter Nützel <Dieter at nuetzel-hh.de> ---
(In reply to Lukáš Krejza from comment #4)
> Maybe duplicate of some other bug?
> I get also freeze with gsraytrace, so it could be duplicate of
> https://bugs.freedesktop.org/show_bug.cgi?id=83319 (or some other that i
> added to "See Also")

Hello Lukáš,

as you own a
Radeon HD 3400
RV620

'semilar' to my RV730
the 'gsraytrace' GPU hang is NOT soveld with current GIT.
I'll update my bug report (Bug 83319), soon.

For EG+ (Bug 91865) this is _fixed_ by 'accident' in Mesa git since:

commit 2239f3eaff5c72c4cb1d4a5be97feb4af3d08d25
Author: Dave Airlie <airlied at redhat.com>
Date:   Mon Nov 30 15:48:22 2015 +1000

    r600/shader: emit tessellation factors to GDS at end of TCS.

    When we are finished the shader, we read back all the tess factors
    from LDS and write them to special global memory storage using
    GDS instructions.

    This also handles adding NOP when GDS or ENDLOOP end the TCS.

    Signed-off-by: Dave Airlie <airlied at redhat.com>

I'll have to talk with Dave and Marek what is different for R600/R700 and EG+
and what should I try next.

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