[Bug 93584] New: GPU hang on Dirt Showdown with Intel HD Graphics 4600

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93584

            Bug ID: 93584
           Summary: GPU hang on Dirt Showdown with Intel HD Graphics 4600
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: mbouchar at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 120801
  --> https://bugs.freedesktop.org/attachment.cgi?id=120801&action=edit
dmesg description

The problem happens with Ubuntu 15.10, stock or with an upgraded graphic stack.
The hang happens every time with my config, so it is easy to reproduce.

How to reproduce:
1 - Install Steam
2 - Download Dirt Showdown
3 - Start Dirt Showdown with the following launch options:
MESA_GL_VERSION_OVERRIDE=4.1 MESA_GLSL_VERSION_OVERRIDE=410 %command%

Then the game hangs and exit when showing the AMD logo

Tested upgraded components from stock Ubuntu:
- Mesa 11.2 (git) from
https://launchpad.net/~paulo-miguel-dias/+archive/ubuntu/mesa
- Kernel 4.3.3 from http://kernel.ubuntu.com/~kernel-ppa/mainline/

NOTE: The default Ubuntu 15.10 intel driver was crashing KDE plasma, I had to
downgrade the driver to xserver-xorg-video-intel_2.99.917-1ubuntu1_amd64.deb
from ubuntu 15.04. With the above PPA, i'm now at version
2:2.99.917+git1512160028.8229390~padoka0. Plasma doesn't crash anymore, but I
have some corruptions in Google Chrome

NOTE2: All other games that were working before the upgrade are still rendering
correctly, so this seems to be a bug with something that is used only by Dirt
Showdown.

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