Public bug reported: My setup is composed of a Dell XPS13 9320, with one (or two) external USB-C monitors attached. The laptop panel is the primary screen. I'm using gnome on Wayland.
Everything is working fine, except when resuming from screensaver: the prompt for password is shown on the laptop panel, and I start typing the password. At this point, the laptop panel freezes. This can happen almost immediately (I will see for example two or three dots as I typed the first characters of my password) or this can happen a few seconds later (meanwhile the screen has been unlocked, the panel shows the desktop, then it freezes). Interestingly, the external monitors are woken up, desktop is unlocked, and will continue working, while the laptop panel is frozen. After that, let's say 40% of the time, the panel will un-freeze itself after 30 seconds or so. 40% of the time it will remain frozen, and 20% of the time the whole display will freeze (including the external monitors). When it happens, I can recover by either un-plugging / re-plugging one of the external monitors, or by typing Ctrl-Alt-F1, then retyping my password, then everything is fine again... until the next screen lock. This bug is reproducible more or less 50% of the time (one in two screen locks causes freezes). Deactivating the dash-to-panel gnome extension made it less reproducible, but it still happens. I didn't see any interesting error message in the logs, but maybe I didn't look at the correct place. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: gdm3 42.0-1ubuntu7 ProcVersionSignature: Ubuntu 5.15.0-48.54-generic 5.15.53 Uname: Linux 5.15.0-48-generic x86_64 ApportVersion: 2.20.11-0ubuntu82.1 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Mon Oct 3 13:54:42 2022 ExecutablePath: /usr/libexec/gdm-wayland-session InstallationDate: Installed on 2022-07-20 (75 days ago) InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419) ProcEnviron: SHELL=/bin/bash PATH=(custom, no user) LANG=fr_FR.UTF-8 XDG_RUNTIME_DIR=<set> SourcePackage: gdm3 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: gdm3 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug jammy wayland-session -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1991526 Title: Panel freezes on return from screensaver with external monitor attached To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1991526/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs