I have this problem from the begging. First I installed Ubuntu 16.04 with kernel 4.4.43. I also tried kernels 4.6.* and 4.8.*. None of them solved my problem. I upgraded BIOS to the latest version 1.9.4. I run various hardware diagnostic tests, but found nothing.
I've just tested on kernel 4.9.0-040900rc1.201610151630. Unfortunately bug is still there.
I have this problem from the begging. First I installed Ubuntu 16.04 with kernel 4.4.43. I also tried kernels 4.6.* and 4.8.*. None of them solved my problem. I upgraded BIOS to the latest version 1.9.4. I run various hardware diagnostic tests, but found nothing.
I've just tested on kernel 4.9.0-040900rc1 .201610151630. Unfortunately bug is still there.