@Daniel (1) It's not possible to do a soft reboot under the error mode because the displays are frozen. Will a hard power-off get the job done?
(2) Using "Ubuntu on Xorg" changed the symptoms somewhat, but the outcome is still the same: the secondary monitor never cycles up -- it stays black. The only difference is that, under Xorg, the primary monitor does NOT freeze. I can even access the Display manager and attempt to set the secondary display up, but clicking "apply" has no effect other than to cycle the power on the monitor. (3) The dock did not require any special drivers on 20.04, the Ubuntu version I just switched from. I will attempt to collect additional logs under Wayland. Stay tuned. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1970495 Title: Window manager freezes when plugging in USB-C dock with external monitor. Status in gnome-shell package in Ubuntu: Incomplete Status in mutter package in Ubuntu: Incomplete Bug description: 1. Problem DOES appear on Lenovo T470s (Intel). 2. Problem DOES appear on Lenovo T14 Gen2 (AMD). 3. Problem does NOT appear on either of the above *when in the Live Installer*. I specifically checked that my dock behaved well under the Live Installer before deciding to move my workstations to Jammy. Upon logging into a fresh Jammy install, I found the following problem behavior: When the dock is plugged in, the built-in display freezes and the dock-attached displays power up but never render anything (ie, they stay black). Unplugging the USB-C cable gets mouse/keyboard response back on the built-in display. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: gnome-shell 42.0-2ubuntu1 ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30 Uname: Linux 5.15.0-27-generic x86_64 ApportVersion: 2.20.11-0ubuntu82 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Tue Apr 26 18:32:35 2022 DisplayManager: gdm3 InstallationDate: Installed on 2022-04-26 (0 days ago) InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash RelatedPackageVersions: mutter-common 42.0-3ubuntu2 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/gnome-shell/+bug/1970495/+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
