WORKAROUND/FIX:
1. Log in and configure your multi-monitor desktop the way you want.
2. sudo cp ~/.config/monitors.xml ~gdm/.config/
3. Edit ~gdm/.config/monitors.xml to make sure the monitor you want as
primary is set as <primary>yes</primary>
4. Log out.
** Also affects: gnome-control-center (Ubuntu)
Importance: Undecided
Status: New
** Changed in: gnome-control-center (Ubuntu)
Importance: Undecided => Wishlist
** Changed in: gnome-control-center (Ubuntu)
Status: New => Triaged
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https://bugs.launchpad.net/bugs/1760849
Title:
Login screen appears on only one monitor and it's not the one I want
Status in GNOME Shell:
Unknown
Status in gnome-control-center package in Ubuntu:
Opinion
Status in gnome-shell package in Ubuntu:
Triaged
Bug description:
Upstream bugs:
https://gitlab.gnome.org/GNOME/gdm/issues/168
https://gitlab.gnome.org/GNOME/gdm/issues/183
https://gitlab.gnome.org/GNOME/gdm/issues/195
https://gitlab.gnome.org/GNOME/gdm/issues/319
https://gitlab.gnome.org/GNOME/gdm/issues/372
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3867
The Ubuntu login screen is tiled on all displays, not mirrored, making
it nearly impossible to login when using an external monitor if the
laptop screen is not visible.
There appears to be no available control to alter the display settings
of the login screen. Prior to bionic, the controls followed the mouse
onto different displays so you could login by giving the mouse a swipe
to the right to get the controls to appear.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gdm3 3.28.0-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
Uname: Linux 4.15.0-13-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.9-0ubuntu2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 3 22:13:53 2018
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_AU.UTF-8
SHELL=/bin/bash
SourcePackage: gdm3
UpgradeStatus: No upgrade log present (probably fresh install)
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