Comment # 6 on bug 99330 from Vedran Miletić

Got it, thanks Ernst:

Jan 10 17:44:30 localhost.localdomain gnome-shell[22110]: Failed to flip:
Invalid argument

I also got the following in dmesg, but it's likely unrelated as I get it with
Xorg as well:

[Tue Jan 10 17:44:29 2017] [drm:amdgpu_crtc_page_flip [amdgpu]] *ERROR* failed
to get vblank before flip