Can you also test the following upstream kernel: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-rc1-unstable/
If v4.2-rc1 has the bug, we can bisect between 3.19 final and 4.2-rc1. If v4.2-rc1 does not have the bug, we will have to test some of the other 4.2 release candidates(rc2, rc3, etc) to find which one introduced the bug.
Can you also test the following upstream kernel: kernel. ubuntu. com/~kernel- ppa/mainline/ v4.2-rc1- unstable/
http://
If v4.2-rc1 has the bug, we can bisect between 3.19 final and 4.2-rc1. If v4.2-rc1 does not have the bug, we will have to test some of the other 4.2 release candidates(rc2, rc3, etc) to find which one introduced the bug.