Can you see if this bug also happens with the 3.16..7-ckt1 kernel:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.16.7-ckt1-utopic/
That is the upstream kernel 3.16.0-28 is based on.
Can you see if this bug also happens with the 3.16..7-ckt1 kernel:
http:// kernel. ubuntu. com/~kernel- ppa/mainline/ v3.16.7- ckt1-utopic/
That is the upstream kernel 3.16.0-28 is based on.