I had the same Problem as described above, on an updated edgy with a 7500 and the radeon driver. But only when I've tried to start a application that uses opengl like glxgears/info when I added "load dri" to my xorg.conf. I've found a way to circumvent crashes while anyhow using dri module. I've found out that the module "GLcore" interferes with "dri". "GLcoere" is not needed for opengl and direct rendering so I deactivated it and lo and behold it all works wthout crashes and 3d is working perfectly smooth. I'am using an ati 7500 with radeon driver on a thinkpad t41. AIGLX works stable with beryl.
-- system freeze when using ati radeon 7000 with xorg "ati" driver https://launchpad.net/bugs/16873 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
