Sorry may have to put this 1 on Hold for now just in case another person has the same issue in the future maybe.
reason i cant bring any more infomation about this bug is cause of Fatal crash and could not repair the issue with bug:
https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1351480
when i had this bug my Ubuntu system was not bootable
Sorry may have to put this 1 on Hold for now just in case another person has the same issue in the future maybe.
reason i cant bring any more infomation about this bug is cause of Fatal crash and could not repair the issue with bug:
https:/ /bugs.launchpad .net/ubuntu/ +source/ metacity/ +bug/1351480
when i had this bug my Ubuntu system was not bootable