I tested the latest upstream Kernel (3.18) and this bug is fixed. Thanks a lot for help.
P.S. Where i can add the tag 'kernel-fixed-upstream' ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1359892 Title: pc restarts automatically To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1359892/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs