On my Thinkpad T61 the driver module e1000e causes this lockup. To test if this is your case also, run the following in a terminal and then try to shutdown:
sudo rmmod e1000e Regards. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/991983 Title: precise fails to turn off thinkpad t61 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/991983/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs