I have nearly the same problem with a HP Elitebook 8560w, Nvidia driver, while undocking and docking (after reboot) to the docking station. Difference: Unity freezes, but I can switch to console with STRG+ALT+F1...F6 and reboot there.
Hardware: HP 8560W mobile workstation with Nvidia Quadro HP Docking Station (p/n: VB044AV) Operating System: Ubuntu 12.04 x86_64 Linux jolu-pc 3.2.0-31-generic #50-Ubuntu SMP Fri Sep 7 16:16:45 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux Nvidia driver version: 304.43 Problem Description: Docking or undocking this laptop while running causes Unity to freeze. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/992004 Title: System Freezes after Undocking then Docking - HP 8740W To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/992004/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
