"Single" and "extended" display modes sound like different
configurations. You need to set each up separately with your preferred
settings in gnome-control-center, and save the settings of each. If you
have done that, and especially if you have verified it's been saved in
~/.config/monitors.xml then this is a bug.
Does it only happen in Wayland sessions?
** Tags added: multimonitor
** Changed in: mutter (Ubuntu)
Status: New => Incomplete
** Also affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Changed in: gnome-shell (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1905084
Title:
Fractional scaling of external monitor and monitor positioning are
lost when switching between single- and extended-display modes using
the keyboard
Status in gnome-shell package in Ubuntu:
Incomplete
Status in mutter package in Ubuntu:
Incomplete
Bug description:
Steps to reproduce:
0. Attach an external monitor to the laptop
1. Set the external monitor as the primary monitor
2. Change the fractional scaling of the external monitor to 150% and
change the positioning of the built-in monitor to the desired
positioning
3. Switch to the single-display mode using the keyboard
→ 4. The fractional scaling of the external monitor changes to 100%
(this could be the intended behaviour and not a bug)
5. Change again the fractional scaling of the external monitor to 150%
6. Switch to the extended-display mode using the keyboard
→ 7. The fractional scaling of the external monitor changes to 100%
(this is a bug, it should persist)
→ 8. The positioning of the built-in monitor changes to the default
(this is a bug, it should persist)
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: mutter 3.36.6-1ubuntu0.20.04.2
ProcVersionSignature: Ubuntu 5.4.0-54.60-generic 5.4.65
Uname: Linux 5.4.0-54-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.12
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Nov 20 20:04:26 2020
InstallationDate: Installed on 2020-04-26 (208 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=de_DE.UTF-8
SHELL=/bin/bash
SourcePackage: mutter
UpgradeStatus: No upgrade log present (probably fresh install)
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