I have the same issue. ATI X1400 here with the 2.6.20-12 kernel, installed via edgy->feisty upgrade.
-- fglrx(0): incompatible kernel module detected - HW accelerated OpenGL will not work https://launchpad.net/bugs/92689 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
