https://bugs.freedesktop.org/show_bug.cgi?id=92836
--- Comment #5 from David Walker David@WalkerStreet.info --- I've attached dmesg and Xorg.0.log files for 4.3.0-1.g7b374a4. It appears that the GPU faults have gone away, but the visual symptom is still the same; the screen is blank after a resume.
You'll also note that there are a *lot* of "xhci_hcd 0000:00:10.0: WARN Successful completion on short TX" messages in the dmesg output. I suspect they're unrelated, but they don't appear under 4.2.3-1.4.