I am able to reproduce this issue on Skylake GT2 (0x1916) with Ubuntu 18.04 beta default mesa. Downgrading mesa to mesa-17.3.6 doesn't help.
Reverting the bisected commit (1efd73df39b3) solved the issue. As well as using mesa-17.2.8 where that commit was not applied.
I am able to reproduce this issue on Skylake GT2 (0x1916) with Ubuntu 18.04 beta default mesa. Downgrading mesa to mesa-17.3.6 doesn't help.
Reverting the bisected commit (1efd73df39b3) solved the issue. As well as using mesa-17.2.8 where that commit was not applied.