https://bugs.freedesktop.org/show_bug.cgi?id=104300
--- Comment #8 from Mariusz Mazur mariusz.g.mazur@gmail.com --- Ok, I've managed to narrow down my issue to displayport link training code somehow triggering a monitor disconnect while attempting to wake it up. So my issue is completely unrelated, none of my comments here apply, please ignore (no way to delete them unfortunately).