Can you test the latest 4.1 upstream kernel and see if this bug still exists? It can be downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-unstable/
Can you test the latest 4.1 upstream kernel and see if this bug still exists? It can be downloaded from:
http:// kernel. ubuntu. com/~kernel- ppa/mainline/ v4.1-unstable/