I can confirm this bug. Everything was running well till I upgraded xserver-xgl.
Now, XGL is started but without any acceleration. >From Xorg.0.log: (EE) AIGLX error: dlsym for __driCreateNewScreen_20050727 failed (/usr/lib/dri/fglrx_dri.so: undefined symbol: __driCreateNewScreen_20050727) (EE) AIGLX: reverting to software rendering (II) Loading local sub module "GLcore" (II) LoadModule: "GLcore" So AIGLX is started (it shouldn't). Note, I'm using the same xorg.conf as in my other partition with Feisty. There, XGL, fglrx, and compiz work without issues. I tried to modify my xorg.conf to add "AIGLX" "off".. (I used "Composite" "0"). Doesn't work yet, but I saw in the logs that AIGLX wasn't started. I tried also to downgrade to the previous version... no can do. ** Changed in: xserver-xgl (Ubuntu) Status: New => Confirmed -- xserver-xgl on gutsy doesn't work https://bugs.launchpad.net/bugs/136598 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs