Comment 10 for bug 1748408

@Dr. Jens Harbott, Just let me know if you need assistance with the bisect between 4.11 and 4.12. I can build the kernels for you. I would say the next step would be to test the 4.12 release candidates to narrow down the issue further. 4.12-rc1 is available here:

http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.12-rc1/

You can just change the 'rc' part of that link to test the other release candidates, such as rc2, rc3, etc.