When you are returned to the login screen, does Ctrl+Alt+F2 fix it? If
not then:

Thank you for taking the time to report this bug and helping to make
Ubuntu better. It sounds like some part of the system has crashed. To
help us find the cause of the crash please follow these steps:

1. Look in /var/crash for crash files and if found run:
    ubuntu-bug YOURFILE.crash
Then tell us the ID of the newly-created bug.

2. If step 1 failed then look at https://errors.ubuntu.com/user/ID where
ID is the content of file /var/lib/whoopsie/whoopsie-id on the machine.
Do you find any links to recent problems on that page? If so then please
send the links to us.

3. If step 2 also failed then apply the workaround from bug 994921,
reboot, reproduce the crash, and retry step 1.

Please take care to avoid attaching .crash files to bugs as we are
unable to process them as file attachments. It would also be a security
risk for yourself.

** Package changed: xorg (Ubuntu) => mutter (Ubuntu)

** Changed in: mutter (Ubuntu)
       Status: New => Incomplete

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1970107

Title:
  [nouveau] Xorg crash / Graphics Issue

Status in mutter package in Ubuntu:
  Incomplete

Bug description:
  I am using a wayland display manager, an internal graphics / Dedicated
  Graphics laptop where the HDMI is controlled by the dedicated
  graphics. Currently, with proprietary drivers on ubuntu 22.04

  When I connect a display to the hdmi it only shows a white screen,
  when I try to change the projection to mirror, or external only, it
  crashes and goes back onto the logon screen. I currently cannot cast
  at all to a monitor. The monitor I am trying to connect is a 4k and my
  laptop screen is 1080p if that makes a difference. I am sure I am not
  the only one who uses this feature, but because I have a mixture of
  internal and dedicated control, it may have more an issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: xorg 1:7.7+23ubuntu2
  ProcVersionSignature: Ubuntu 5.15.0-25.25-generic 5.15.30
  Uname: Linux 5.15.0-25-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CasperMD5CheckResult: fail
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Apr 24 09:30:05 2022
  DistUpgraded: Fresh install
  DistroCodename: jammy
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation CoffeeLake-H GT2 [UHD Graphics 630] [8086:3e9b] (prog-if 
00 [VGA controller])
     Subsystem: Dell CoffeeLake-H GT2 [UHD Graphics 630] [1028:08ea]
   NVIDIA Corporation TU116M [GeForce GTX 1660 Ti Mobile] [10de:2191] (rev a1) 
(prog-if 00 [VGA controller])
     Subsystem: Dell TU116M [GeForce GTX 1660 Ti Mobile] [1028:08ea]
  InstallationDate: Installed on 2022-04-22 (2 days ago)
  InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 
(20220419)
  MachineType: Dell Inc. G5 5590
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-25-generic 
root=UUID=03aed564-912f-48c9-972f-2517e41b2692 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  Title: Xorg crash
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/01/2021
  dmi.bios.release: 1.18
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.18.0
  dmi.board.name: 0MXHK3
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.18.0:bd12/01/2021:br1.18:svnDellInc.:pnG55590:pvr:rvnDellInc.:rn0MXHK3:rvrA01:cvnDellInc.:ct10:cvr:sku08EA:
  dmi.product.family: GSeries
  dmi.product.name: G5 5590
  dmi.product.sku: 08EA
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.110-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 22.0.1-1ubuntu2
  version.libgl1-mesa-glx: libgl1-mesa-glx 22.0.1-1ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:21.1.3-2ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2build3
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20210115-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.17-2build1

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