http://bugs.freedesktop.org/show_bug.cgi?id=10120
Summary: Broken rendering in kpovmodeler when DRI disabled (using
GLX only)
Product: Mesa
Version: 6.5
Platform: Other
URL: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=393150
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: GLX
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
This bug has been reported to the Debian BTS about 6 months ago by Alexandre
Denis. It still apply to Mesa 6.5.2 and it seems it was already there in 6.4.2
(I couldn't test earlier mesa releases).
If you disable DRI on your X server, either by removing the corresponding DRI
drivers, or by disabling dri explicitely in Xorg.conf, kpovmodeler rendering is
completely broken.
To reproduce, start a second X server (so that DRI is disabled), open
kpovmodeler and load
/usr/share/apps/kpovmodeler/examples/scenes/advanced/ants.kpm (this is the path
in Debian, it might need to be adapted for other distribs). There are 4 black
rectangles in kpovmodeler's window. Each rectangle displays a wired rendering
of a ant, here. But almost nothing is actually displayed.
If DRI is enabled, the rendering is fine. If software rasterizer libraries are
installed instead of DRI/GLX, rendering is also fine (according to the reporter
of the Debian bug, I did not test myself). So this looks completely specific to
GLX, from what I understand in how GLX/DRI/soft-rasterize are organized.
thanks,
Brice
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