Similar bugs or may be duplicates:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/446421
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/509273
Similar bugs or may be duplicates:
https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/446421
https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/509273