Public bug reported:
I normally have a second monitor plugged into my laptop. Recently in
Ubuntu 18.04 (this is a regression that has happened in the last week or
so), when I boot the laptop I get presented with a blank login screen.
(The external monitor just shows the background screen, so it looks as
if gdm3 has hung or crashed.)
If I unplug the external monitor, gdm turns the primary screen back on
and I can log in.
DistroRelease: Ubuntu 18.04
Package: gdm3 3.27.90-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3
Uname: Linux 4.15.0-10-generic x86_64
Date: Thu Mar 8 10:59:11 2018
InstallationDate: Installed on 2017-08-16 (203 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
UpgradeStatus: Upgraded to bionic on 2017-11-17 (110 days ago)
** Affects: gdm3 (Ubuntu)
** Tags: amd64 apport-bug bionic
You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to gdm3 in Ubuntu.
gdm turns off the primary (login) monitor when two monitors are
To manage notifications about this bug go to:
desktop-bugs mailing list