Bug#420164: libgl1-mesa-dri: Darwinia only shows black screen

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

Christian Ohm wrote:
> With the current mesa 6.5.2, running Darwinia (and possibly other apps)
> results in a black screen (the game seems to work, just nothing is
> shown). There's a patch in mesa git (also attached, as it is quite
> small) that fixes this issue:
>
> http://gitweb.freedesktop.org/?p=mesa/mesa.git;a=commitdiff;h=6f9b1afc862851532e4820705c412388b497ad58
>   

Hi Christian,

I am ready to apply this patch and another one[1] as recommended by
Michel, but while doing some basic testing, I found out that glxgears is
reporting less """performance""" with these patches applied (drop from
1400FPS to 1000 on my Radeon Mobility X300). I know that glxgears is not
a benchmark, but this performance drop worries me a little bit.

Apart from that, I didn't see any breakage with my 3D applications, but
I can't test Darwinia since it does not appear to be in Debian. Do you
know any application in Debian that should be fixed by the above patch?

Thanks,
Brice

[1]
http://gitweb.freedesktop.org/?p=mesa/mesa.git;a=commitdiff;h=4d9901a1cab8e0d55b1b2309cf3ffec235e53149