In the comment above, I mean I added "echo /sys/module/btusb/refcnt" in 49bluetooth.
** Changed in: pm-utils (Ubuntu) Status: Incomplete => Triaged ** Changed in: pm-utils (Ubuntu) Assignee: Keng-Yü Lin (lexical) => Martin Pitt (pitti) ** Changed in: pm-utils (Ubuntu Maverick) Status: In Progress => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/715643 Title: Bluetooth modules cause random S4 hangs -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs