[Bug 30960] New: [r300g][glsl] Texture corruption in Xonotic with lightmaps

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=30960

           Summary: [r300g][glsl] Texture corruption in Xonotic with
                    lightmaps
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: xeros at irc.pl


Created an attachment (id=39504)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39504)
Screenshot of lightmaps corruption

Testing procedure:

1. Download Xonotic (Nexuiz fork) from
http://beta.xonotic.org/autobuild/Xonotic-20101017.zip (login: xonotic, pass:
g-23) (could be newer build, too)
2. Unzip and run ./xonotic-linux-glx.sh
3. Enable GLSL in video menu
4. Enable "Use lightmaps" in effects menu
5. Connect to any server.

Lightmaps do texture corruption in r300g as seen on screenshots. 
Textures are rendered properly for example on Nvidia binary driver on Nvidia
hardware.
My graphic card: ATI Radeon 9600 256MB AGP (RV350).

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