Hi Ben, Ben Sturmfels <b...@sturm.com.au> writes:
> Hi Ludovic, > > On Thu, 2019-04-25 at 11:08 +0200, Ludovic Courtès wrote: >> >> Ben Sturmfels <b...@sturm.com.au> skribis: >> >> > I was previously using a 24" Samsung external monitor with my X200 >> > Guix >> > System via VGA. Since the switch to GDM, I no longer seem to be >> > able >> > connect this monitor. When I do, the laptop screen just keeps >> > flashing. >> >> So the GDM login screen never shows up, right? > > I'm thoroughly confused now. GDM definitely *was* working with the > laptop screen only, but now when I reconfigure it or choose an old Grub > entry, I can't get to the login screen with either external monitor or > the laptop. In both cases the console loops showing a message something > like: > > New session c1 of user gdm. > Removed session c1. > . > . > . > New session c506 of user gdm. > Removed session c506. This sounds familiar. Can you check if /var/lib/gdm is owned by gdm. If it isn't, chowning it back to gdm:gdm should fix it. Regards Diego