Mmm… I had « the bug » once yesterday.
Maybe I can narrow down a bit its context. After using some sessions on the machine ( meaning : all sessions work and I'm able to switch between all of them, using « change user » ) I went back to the login screen where one can chose an user. But I had to left office a moment, an hour maybe, so leaving computer with that login screen on ( the one that shows after clicking on « change user » ) Back at the office, screen is black, which seems normal but typing anything on keyboard or moving mouse or clicking blindly did not wake up screen. And this time [ ctrl ] + [ alt ] + [ F1 ] did nothing. So I hit the [ sleep ] key on the keyboard, putting computer in …sleep, of course. Waking it up, still nothing on screen but hitting [ ctrl ] + [ alt ] + [ F1 ] brought me back the login screen. Does this help to pinpoint a culprit ? [ sorry, I forgot about the log, I'll try to think about it next it happens. If it happens. ] Xorg sessions, by the way these days. -- 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/1983175 Title: In Wayland, can't wake up monitor after it has gone black Status in mutter package in Ubuntu: Incomplete Bug description: Hi, sorry I don't know if it's about GDM or else. Ubuntu 22.04.1 LTS jammy Linux 5.15.0-41-generic x86_64 x86_64 ubuntu / wayland installed DE's are : ubuntu.desktop ubuntu-xorg.desktop My system is set to turn screen black after some minutes. And after some other minutes later, it locks the screen → no sleep nor hibernate involved ( even if sleep and hibernate are ok on that machine. ) On Xorg, after screen's gone black, any mouse or keyboard solicitation fires up again the screen, as expected. On Wayland, after screen's gone black, any mouse or keyboard solicitation just does nothing, screen stays black. BUT keyboard is not turned off : only thing that works for « waking up » the screen is key-combo [ ctrl ] + [ alt ] + [ F1 ] If of any interest : django@ASGARD:~$ sudo lshw -c video [sudo] Mot de passe de django : *-display description: VGA compatible controller produit: Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller fabricant: Intel Corporation identifiant matériel: 2 information bus: pci@0000:00:02.0 nom logique: /dev/fb0 version: 06 bits: 64 bits horloge: 33MHz fonctionnalités: msi pm vga_controller bus_master cap_list rom fb configuration : depth=32 driver=i915 latency=0 resolution=1920,1080 ressources : irq:33 mémoire:f7800000-f7bfffff mémoire:e0000000-efffffff portE/S:f000(taille=64) mémoire:c0000-dffff django@ASGARD:~$ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1983175/+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

