Have you tried running "sudo /etc/init.d/bluetooth restart" after waking up the computer? If this solves the problem, your bug could be related to bug 128795 ..
-- Hibernate under Hardy make bluetooth services unvailable when wakeup https://bugs.launchpad.net/bugs/234202 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