[Bug 32945] New: Lower part of the screen corrupt with HyperZ enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=32945

           Summary: Lower part of the screen corrupt with HyperZ enabled
           Product: Mesa
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: sa at whiz.se


Created an attachment (id=41815)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41815)
Screenshot of gears

When HyperZ is used on my RV570 the lower part of the screen isn't rendered
correctly.  I'm attaching a screenshot of glxgears, but it's also visible in
most real-world games and apps.

I'm not sure if this is the same as bug 29851 since the hardware differs.

(HyperZ gives a pretty nice performance boost otherwise, about a 30% fps
increase with Doom 3 in 1680x1050!) 

System environment:
-- system architecture: 32-bit
-- Linux distribution: Debian unstable
-- GPU: RV570
-- Model: Asus EAX1950Pro 256MB
-- Display connector: DVI
-- xf86-video-ati: 6.13.2
-- xserver: 1.9.2
-- mesa: ac6306e9ca904ae9674bf2a15222efe4cb861bf5
-- drm: 2.4.23
-- kernel: 2.6.37

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