http://bugs.freedesktop.org/show_bug.cgi?id=11380
Summary: r300 DRI misrenders 3D objects
Product: DRI
Version: XOrg CVS
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: General
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
When trying to use DRI enabled applications on an R300 (ATI Mobility Radeon
9600 M10, PCI ID 1002:4e50 subsystem 1025:0046; 1400x1050 at 24 bpp), the
application's window is garbled (there is no crash, and it looks like the
application is working, just not drawing the correct items).
Neither X logs nor dmesg show any error messages, LIBGL_DEBUG=verbose glxinfo
doesn't report anything odd.
2D acceleration is working perfectly, identical software works well (including
DRI) with an r200 card.
xorg-server 1.3.0.0
xf86-video-ati 6.6.192
Mesa 6.5.3 (also tried 7.0 with patched xorg-server, same effect)
libdrm from git
Linux 2.6.22-rc4 (tried both stock kernel and kernel with current DRI git
modules; also tried 2.6.21)
glibc 2.6
gcc 4.2
The same machine worked well roughly a year ago, with xorg-server 1.1.1,
xf86-video-ati 6.6.1, libdrm 2.1, Linux 2.6.18-rc2, glibc 2.4, gcc 4.1.1
Misrenderings depend on the application.
blender just garbles its window (will attach a screenshot), tuxracer/ppracer
draw the background and nothing else (possibly the menus etc. are hidden behind
the background), glxgears shows just a black window and a pretty high FPS (9281
frames in 5.0 seconds = 1856.061 FPS
9389 frames in 5.0 seconds = 1877.744 FPS)
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