Greetings Max,
I had previously reported this, and I was told that the reported bug was here: https://bugs.centos.org/view.php?id=9374
Looking at it now, I see that it is closed.
Wrong. That reports refers to an earlier bug, which appears to be identical:-
https://bugs.centos.org/view.php?id=9209
Looking at the end of the web page, you will see a splendid Centos hero has found a solution you may wish to try.
" toracat (developer) 2016-02-21 04:23
The latest centosplus kernel (kernel-2.6.32-573.18.1.el6.centos.plus) now has CONFIG_DRM_I915_UMS disabled. "
Good Luck.