Actually the attached monitors.xml.txt suggests the system doesn't have any saved configurations for using the laptop screen only. It looks like it only has known configurations that disable the laptop screen.
That sounds like a bug, and to fix it I can only recommend: 1. Delete ~/.config/monitors.xml 2. Reboot. 3. Unplug all external monitors. 4. Go to Settings and change some display settings. 5. Log out and in again. 6. Verify ~/.config/monitors.xml exists now. 7. Plug your external monitor in and configure it again in Settings. ** Package changed: gnome-shell (Ubuntu) => mutter (Ubuntu) ** Tags added: hotplug multimonitor -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2060384 Title: I'm using an external diplay. When disconnecting the HDMI cable, my laptop screen remains dark (when it should actually activate)+ Status in mutter package in Ubuntu: New Bug description: I normally don't use the laptop screen, as the external display suits me better. However, when I disconnect the HDMI cable (and the external screen is no longer connected), the laptop display should pop back and activate. This doesn't happen - the laptop display remains dark and I have no active display. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: gnome-shell 42.9-0ubuntu2 ProcVersionSignature: Ubuntu 6.5.0-26.26~22.04.1-generic 6.5.13 Uname: Linux 6.5.0-26-generic x86_64 ApportVersion: 2.20.11-0ubuntu82.5 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Sun Apr 7 14:15:24 2024 DisplayManager: gdm3 InstallationDate: Installed on 2024-02-27 (40 days ago) InstallationMedia: Ubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64 (20240220) RelatedPackageVersions: mutter-common 42.9-0ubuntu7 SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2060384/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
