Same errors in my syslog. See full text of
https://bugs.launchpad.net/ubuntu/+source/gnome-
shell/+bug/1970495/comments/2

Relevant snippet:
```
Apr 26 18:57:17 dathon gnome-shell[1649]: 
meta_monitor_manager_get_logical_monitor_from_number: assertion '(unsigned int) 
number < g_list_length (manager->logical_monitors)' failed
Apr 26 18:57:17 dathon gnome-shell[1649]: 
meta_workspace_get_work_area_for_monitor: assertion 'logical_monitor != NULL' 
failed
Apr 26 18:57:17 dathon gnome-shell[1649]: 
meta_monitor_manager_get_logical_monitor_from_number: assertion '(unsigned int) 
number < g_list_length (manager->logical_monitors)' failed
Apr 26 18:57:17 dathon gnome-shell[1649]: 
meta_workspace_get_work_area_for_monitor: assertion 'logical_monitor != NULL' 
failed
Apr 26 18:57:17 dathon gnome-shell[1649]: JS ERROR: TypeError: monitor is 
undefined#012vfunc_allocate@resource:///org/gnome/shell/ui/workspace.js:1042:29#012_prepareMainDash/<@/usr/share/gnome-shell/extensions/[email protected]/docking.js:2159:18#012vfunc_allocate@resource:///org/gnome/shell/ui/workspacesView.js:555:25#012vfunc_allocate@resource:///org/gnome/shell/ui/workspacesView.js:711:30

```

Hopefully that's sufficient as I'm not going to have any time to spend
on further debugging this week.

-- 
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)

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