Comment # 7 on bug 100228 from Rhys Kidd

harry_x reports that:

> When starting the machine on Dell Inspiron 7000 (Kabylake, GTX 1050 Ti) with
> HDMI monitor connected (HDMI output is provided by NVIDIA card, eDP is 
> connected to internal), everything seems to work (using reverse prime that is 
> automatically setup). There is lot of tearing, but it works.
> 
> But when starting the machine without HDMI output connected (so the NVIDIA
> card has no connected output), it fails with [the timeout]:"