I found that I could boot the computer reliably if I turned off ACPI (acpi=off) in the boot string, unreliably if I set acpi=noirq. I now can boot the computer (apparently) reliably with virtualization disabled in the BIOS.
Thinkpad T520 Linux lambert 3.5.0-22-generic #34-Ubuntu SMP Tue Jan 8 21:47:00 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1047688 Title: Boot fails on udev if USB devices are present To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1047688/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
