I confirm that this problem exists on Dell Precision 5510 with kernels 4.6.3 and 4.7rc6. Also https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573386 looks like a duplicate of this bug.
I confirm that this problem exists on Dell Precision 5510 with kernels 4.6.3 and 4.7rc6. Also https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1573386 looks like a duplicate of this bug.