Here i've found another link with exactly the SAME problems: http://www .linux-on-laptops.com/forum/showthread.php?t=295
Looks like it's the IO-APIC option in the kernel that causes our problems in our laptops. Since we don't have anything in the logs it's hard to find you know. Going to try with nolapic option in the kernel boot to see. -- [FGLRX] kernel drivers kills USB subsystem https://launchpad.net/bugs/41272 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs