Bug#907698: libdrm2: regression: breaks firefox WebGL

[Julien Cristau <jcristau@debian.org>]

Control: tag -1 upstream fixed-upstream patch
Control: severity -1 important

On 08/31/2018 04:46 PM, Jörg-Volker Peetz wrote:
> Package: libdrm2
> Version: 2.4.94-1
> Severity: normal
> 
> Dear Maintainer(s),
> 
> since update to version 2.4.93-1 the Hardware support in firefox is
> broken. Calling for example https://get.webgl.org/ shows the text
> 
> "While your browser seems to support WebGL, it is disabled or
> unavailable."
> 
> In the log file of xinit the following message appears:
> 
> libGL error: MESA-LOADER: failed to retrieve device information
> libGL error: Version 4 or later of flush extension not found
> libGL error: failed to load driver: i915
> libGL error: MESA-LOADER: failed to retrieve device information
> 
> I'm not sure if this is the package to blame, maybe it's libdrm-intel1
> or something else. Firefox is version 61.0.1-1, xorg-xserver is 2:1.20.1-1, mesa
> is 18.1.7-1.
> 
Should be fixed in
https://gitlab.freedesktop.org/mesa/drm/commit/bcb9d976cd91c018aa4eef13563813288984601f
and separately in Firefox 62.

Cheers,
Julien