You can try to debug your problem by following instructions from https://help.ubuntu.com/community/DebuggingSystemCrash
** Changed in: Ubuntu
Status: New => Incomplete
--
Regularly freezes when shutting down
https://bugs.launchpad.net/bugs/121576
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug contact for Ubuntu.
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
