[Bug 91656] Pillars of Eternity glitch in maps

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91656

            Bug ID: 91656
           Summary: Pillars of Eternity glitch in maps
           Product: Mesa
           Version: git
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: christoph.rabel at gmail.com
        QA Contact: dri-devel at lists.freedesktop.org

There is a regression/graphical glitch when playing Pillars of Eternity. When I
use the ingame map, it is partly "dark/black".

You can find a screenshot here:
http://images.akamai.steamusercontent.com/ugc/439450977393999113/19DF4F643F0C4BB058665F056DBC4600D669ED7B/

The map looks fine with regular Ubuntu drivers (10.1.3), I checked a couple of
days ago with a reinstall (my harddisk broke). After an "upgrade" to oibaf
repository, the glitch appeared.

The glitch was not there mid-June with 10.6(?) or so. I used oibaf then too,
but didn't play for a month. It was probably introduced about June 15 or later.
(Maybe a bit earlier, I don't upgrade the beta drivers every day). It was there
when I started playing again July 18th.

My card is a Radeon 4870:

OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD RV770
OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.0.0-devel
(git-28ed1e0 2015-08-14 trusty-oibaf-ppa)

If you need me to test something or need further information, please feel free
to ask. (Enable debug output somehow?) I have browsed PoE logfiles and
/var/log, but couldn't find anything that looked even vaguely related. No
errors when loading the map or displaying it.

(Btw.: Congrats to Mesa 11!)

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