Could you try updating your firmware and see if this problem still persist. Latest firmware can be found here: http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-67989
As for the dmesg message you see is unrelated. This just an event that the version of thinkpad-acpi in hardy does not know about. Newer versions of thinkpad-acpi kernel module handle this event. -- Impossible to change LCD brightness on Thinkpad R61i https://bugs.launchpad.net/bugs/198476 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs