[Nouveau] [Bug 99995] Dirt showdown very low fps (~3fps) after update mesa

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99995

--- Comment #3 from Kevin Puertas <kevin01010 at gmail.com> ---
(In reply to Ilia Mirkin from comment #1)

> One difference is that 17.0 has GL 4.3 enabled for Maxwell (e.g. GTX 750),
> which perhaps causes the game to choose a different path, thus not really be
> directly comparable. Try it with
> 
> MESA_GL_VERSION_OVERRIDE=4.1

If I export this before opening steam, steam causes a segfault


> Or try it with
> 
> MESA_EXTENSION_OVERRIDE='-GL_ARB_shader_image_load_store
> -GL_ARB_compute_shader'

If I try this, game loads smooth and works about 45fps, better than with mesa
13



(In reply to Gregor Münch from comment #2)
>With higher GL versions, Dirt enables "advanced lighting" options in the graphics menu.
At least for me, it is there, but Off in all the tests

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