I updated BIOS to 1.22 but still have the same problem. I'm testing Kubuntu (11.04) right now, and the same problem is present there as well.
Robin: Do you have the 2000M card or the 1000M? I'm with 1000M here. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/776999 Title: Lenovo W520 laptop freezes on ACPI-related actions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs