Bug#1074061: Acknowledgement (/usr/sbin/gdm3: gdm3+nouveau/nvidia 535 blank login screen with DisplayLink, worked with nvidia 525)

[Jonathan Kamens]

One additional data point: if, when I'm confronted with these two blank 
screens when I should be seeing a login screen, I hit Enter, type my 
password, and hit Enter again, I'm logged in, so it appears that gdm 
_thinks_ it's displaying a login screen but it's not actually visible in 
the real world.