https://bugzilla.kernel.org/show_bug.cgi?id=93701
--- Comment #25 from Frederik vom Hofe frederik.hofe@gmail.com --- With v4.2-rc3+patch I get a black screen when the console resolution changes the first time. And my screen power led blinks like it gets no hdmi signal. So even before X starts and the pink lines show up.
alt+ctrl+del does not work. But reisub does. I have no second PC on hand right now to look at it via ssh. But that can be arranged if you need to see the dmesg output.