This bug is now closed as Invalid since it does seem to be the issue
described in comments #2 and #3. So not a bug, but an interesting point
of confusion that other users might encounter. To "fix" it though would
be an enhancement request. If you like then we can turn this into an
enhancement request...
** Changed in: mutter (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1888800
Title:
Resolution of external monitor goes back to its default resolution
when laptop lid is closed
Status in mutter package in Ubuntu:
Invalid
Bug description:
The default resolution of my external monitor is 4K UHD (3840 ⨉ 2160).
I set its resolution to a lower value (2560 ⨉ 1440). The external
monitor is attached to a laptop. When I close the laptop lid, the
built-in display is turned off, which is desired, however, the
external monitor goes back to its default resolution (3840 ⨉ 2160),
which is not desired. When I open back the lid, the built-in display
is turned on, and the external monitor resolution stays with the
default value (3840 ⨉ 2160), which is also not desired.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: mutter 3.36.3-0ubuntu0.20.04.1
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Jul 24 08:56:58 2020
InstallationDate: Installed on 2020-04-26 (88 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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