Louis, you said that this bug is "very low on anyone's priority list" but it affects me too and is a major nuisance. At home, I always boot up my laptop with the lid closed and an external monitor on. GDM fails to set the correct resolution, and the resolution is still wrong after I log in: I have to run xrandr to correct it. I believe that GDM (or the X server?) is failing to realize that the lid is closed and that the laptop display should be ignored (at least, that's the behavior I would like). Instead, GDM (or the X server) is choosing the highest resolution common to both the laptop display and the external monitor
Louis, you said that this bug is "very low on anyone's priority list" but it affects me too and is a major nuisance. At home, I always boot up my laptop with the lid closed and an external monitor on. GDM fails to set the correct resolution, and the resolution is still wrong after I log in: I have to run xrandr to correct it. I believe that GDM (or the X server?) is failing to realize that the lid is closed and that the laptop display should be ignored (at least, that's the behavior I would like). Instead, GDM (or the X server) is choosing the highest resolution common to both the laptop display and the external monitor