I had these set in my profile to deal with other issues:

```
export MUTTER_DEBUG_FORCE_KMS_MODE=simple
export MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0
export MUTTER_DEBUG_DISABLE_HW_CURSORS=1
```

Unsetting them didn't help.

I don't have any extensions beyond what's default.

-- 
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/1991777

Title:
  gnome-shell deadlocked on startup

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  My Ubuntu session is currently impossible to launch. Upon trying, I
  get a couple ~blank displays, sometimes along with a cursor at the
  position it was in GDM.

  Only way out is `chvt …`, or killing gnome-shell, over SSH.

  "Ubuntu on Xorg" works fine. The wayland session does work for a test
  user as well.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.10
  Package: gnome-shell 43.0-1ubuntu1
  ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
  Uname: Linux 5.15.0-27-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.23.0-0ubuntu2
  Architecture: amd64
  CasperMD5CheckResult: pass
  Date: Wed Oct  5 11:47:11 2022
  DisplayManager: gdm3
  InstallationDate: Installed on 2022-08-31 (34 days ago)
  InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Alpha amd64 (20220829)
  ProcEnviron:
   TERM=screen-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=pl_PL.UTF-8
   SHELL=/bin/zsh
  RebootRequiredPkgs: Error: path contained symlinks.
  RelatedPackageVersions: mutter-common 43.0-1ubuntu1
  SourcePackage: gnome-shell
  UpgradeStatus: No upgrade log present (probably fresh install)

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