My black screen problem has been solved by changing the AGP speed in the BIOS from 8x to 4x. I experienced similar speed problem with my USB pen drive. The automount did not work. But changing the full speed to only high speed, the automounting feature returned.
-- [edgy][regression][rv280] black screen and console freeze when X starts - drm lockup https://launchpad.net/bugs/67487 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
