I have done some experiments with BIOS settings. Basically, the problem seems to disappear when I disable the second core. If any Ubuntu developer is interested in investigating the bug, please let me know as soon as possible because I'll otherwise be reformatting the partition as soon as FC6 is out (i.e. in a few days).
-- Bug on amd64 makes X server unusable in Edgy (CRITICAL) https://launchpad.net/bugs/66500 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
