I am (probably) experiencing the same problem on an HP Compaq nx7400 running Xubuntu 12.04 daily (3.2.0-18-generic-pae #28-Ubuntu SMP Fri Mar 2 22:11:12 UTC 2012 i686 i686 i386 GNU/Linux).
The system will become unresponsive after an unspecified time running on battery. When reconnected to AC power, it will come back to life again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/898852 Title: Kernel freeze when on battery - Compaq nc6400 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/898852/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs