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): blender-2.42a-18.fc7 How reproducible: Always. Steps to Reproduce: 1. Boot from fc7-test3-live-i386 CD. 2. yum -y install blender 3. blender 4. drag the middle-button in the main window. Actual results: Aforementioned artifacts (see attached screenshot). Expected results: No artifacts. :-) Additional info: 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-1.2.99.903-2.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
Question: 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 grapic cards.