Red Hat Bugzilla – Bug 235488
blender shows display artifacts
Last modified: 2007-11-30 17:12:01 EST
Description of problem:
The blender UI has multiple artifacts even when desktop effects and hardware
acceleration is disabled. Artifacts include: the bottom buttons are not shown
unless I roll the mouse over them, the top menu sometimes disappears, and the
modelling window leaves traces when things are rotated, etc.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot from fc7-test3-live-i386 CD.
2. yum -y install blender
4. drag the middle-button in the main window.
Aforementioned artifacts (see attached screenshot).
No artifacts. :-)
My Xorg.0.log files says I have the following graphics card:
(--) PCI:*(1:0:0) ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE] rev 0,
Mem @ 0xe0000000/27, 0xed000000/16, I/O @ 0xa000/8
The problem does not exist when using the FC6-Zod-Live-i386 CD on the same system.
None of the following fixed the problem under f7-test3-i386:
1. Using: LIBGL_ALWAYS_INDIRECT=1 blender
2. Using driconf to "Disabled 3D Acceleration".
3. Upgrading to xorg-x11-server-Xorg-126.96.36.1993-2.fc7 (and logging back in).
4. Replacing blender with the FC6 version (i.e. blender-2.42a-4.fc6.i386.rpm).
I had to make some library symlinks to do that test but I got the same artifacts.
glxgears works fine.
Problem also occurs when using f7-test3-live-x86_64.
Created attachment 151857 [details]
Screenshot showing artifacts
1.) Doens occured the issue anymore.
2.) If yes, ic the issue occured when you disables the desktop effects.
I just tried with the final fedora 7 live cd (i386) and the problem still
occurs. My machine hung when trying to apply all updates after booting from the
CD, so I wasn't able to test with all updates applied.
I did not explicitly enable desktop effects, and I think they are disabled by
default, so I believe the answer to your second question is "yes".
I have create Bug #6912 on the Blender bug tracking system, but I don't assume a
solution for the reported issue.
Upstream wrote, that the issue will caused by the poor OpenGL support of ATI