Copmiz is incompatible with GL screensaver as desktop background (root window)
Bug #145294 reported by
Runar Ingebrigtsen
This bug report is a duplicate of:
Bug #96991: (Needs radeon-rewrite) 3D stuff breaks with Compiz: Redirected Direct Rendering is needed in DRI.
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Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xserver-xorg-video-ati (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
xserver-xorg-video-intel (Ubuntu) |
New
|
Low
|
Unassigned |
Bug Description
Binary package hint: compiz
Using a GL screensaver as desktop background makes compiz go crazy, hiding windows and blinking wildly.
Reproduce:
1. Enable extra desktop effects
2. Open a few different apps (gnome-terminal, epiphany, evolution)
3. Enable GL-matrix background:
$ gconftool-2 --type bool --set /apps/nautilus/
$ /usr/lib/
4. Switch between windows with alt+tab and super+tab
Changed in compiz: | |
importance: | Undecided → Low |
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I assume that you are on a system, which is not equipped with an nvida-based graphics-card. But it would be helpful, if you could further describe your hardware- configuration. That's generally a good idea :)
What you describe sounds very likely to be the well-known shortcoming of the Xorg's DRI. GLX-client applications are always rendered into the front-buffer, ignoring the fact that they are running under a composited environment and thus should not do so. That very fact causes the glitches you are experiencing. Once DRI has "redirected direct rendering" this will automatically solve the issue you are encountering.