Red Hat Bugzilla – Bug 210580
Blender has many display artifacts with desktop effects on
Last modified: 2007-11-30 17:11:45 EST
Description of problem:
If I turn on desktop effects on my IBM T42p with an ATI Fire GL Mobility T2 [M10
NT], then blender starts getting strange artifacts on the screen. These include:
* going to the top of the screen starts showing the desktop bar even though
blender is full screen. With desktop effects off then the bar at the top is hidden.
* any terminal behind blender will suddenly appear when any new output appears.
Mousing over the terminal will start to show blender again.
* any pop up dialog will leave the desktop when it disappears instead of the
* when I try and render the scene, blender exits with a "Could not get dma
buffer" error. This doesn't happen when I don't have desktop effects on.
Much of this is better understood if you look at the screen shots I've attached.
Version-Release number of selected component (if applicable):
blender.i386 2.42a-2.fc6 installed
xorg-x11-drv-ati.i386 6.6.2-4.fc6 installed
Steps to Reproduce:
1.turn on desktop effects
strange rendering artifacts
Created attachment 138390 [details]
desktop bar artifacts at the top
Created attachment 138391 [details]
this is after the printscreen dialog box was removed
notice how the desktop background shows through
Created attachment 138392 [details]
blender bombs out and screen isn't cleaned up
Notice the "Could not get dma buffer...exiting" message as well as the r300
driver error messages.
do you use compiz?
I'm using beryl. Before I have installed the most recent version of beryl, I
have recorgnized strange artefacts on blender and stellarium.
After I have installed the lastest version of beryl available on Fedora Extras,
I don't have any problem with this appplications.
So I want, that you should to the following things:
1.) Update to the most recent version of beryl.
2.) If you will got the complaints artefacts anymore, you should disable
I've used both compiz and beryl. Even on the latest releases it has problems
with artifacts and missing borders. I believe it is a driver problem since I
don't have these problems on my desktop under beryl using an nVidia driver.