It's possible you have some saved configs involving two monitors rather than the three that are connected. If any of those old configs involved disabling the laptop screen then they might be used briefly while the third monitor wakes up.
Try: (a) Without any external monitors connected; and (b) After deleting ~/.config/monitors.xml and logging in again. -- 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/2120744 Title: Screen turn off while wakingup from sleep Status in mutter package in Ubuntu: Incomplete Status in nvidia-graphics-drivers-575 package in Ubuntu: Incomplete Bug description: This is an optimus laptop with nvidia GPU. When pressing any key to wake the system up from sleep, the screen turns on then off again. Next key press, makes it on as seen in the attached video. ProblemType: Bug DistroRelease: Ubuntu 25.04 Package: nvidia-kernel-source-575-open 575.64.03-0ubuntu0.25.04.1 ProcVersionSignature: Ubuntu 6.14.0-28.28-generic 6.14.8 Uname: Linux 6.14.0-28-generic x86_64 ApportVersion: 2.32.0-0ubuntu5.3 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Sat Aug 16 05:30:03 2025 Dependencies: InstallationDate: Installed on 2025-05-18 (89 days ago) InstallationMedia: Ubuntu 25.04 "Plucky Puffin" - Release amd64 (20250415.3) SourcePackage: nvidia-graphics-drivers-575 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2120744/+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
