I use the default Ubuntu-installed ATI driver. I'm not really that experienced in Ubuntu, but when I installed the beta of Feisty, once the loading screen was done it crashed before I got to log in. I don't use xgl. My video card is an ATI mobility Radeon 7500.
When I try to open desktop-effects i receive the following error: "The composite extension is not available" -- older cards fail Feisty default GDM install https://launchpad.net/bugs/94656 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs