this bug is still happen on new kernels and is very similar bug to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/435352 this is the most annoying bug i ever found and no one seem to be fixing this bug
this bug is still happen on new kernels and is very similar bug to https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/435352 this is the most annoying bug i ever found and no one seem to be fixing this bug