It looks like two problems:
1. The vmwgfx kernel driver might be broken.
2. gnome-shell claims that you have MUTTER_DEBUG_FORCE_EGL_STREAM=1 set
in your environment, which will disable the normal graphics driver. If
that's not true then it means memory corruption has happened even
earlier during gnome-shell startup.
Oct 17 13:06:54 localhost gnome-shell[2055]: Running GNOME Shell (using mutter
46.2) as a Wayland display server
Oct 17 13:06:54 localhost kernel: [drm:vmw_msg_ioctl [vmwgfx]] *ERROR* Failed
to open channel.
Oct 17 13:06:54 localhost kernel: [drm:vmw_msg_ioctl [vmwgfx]] *ERROR* Failed
to open channel.
Oct 17 13:06:54 localhost gnome-shell[2055]: Failed to open gpu
'/dev/dri/card0': Failed to initialize render device for /dev/dri/card0: GBM
backend was disabled using env var, EGLStream render device requires an EGL
display
Oct 17 13:06:54 localhost org.gnome.Shell.desktop[2055]: Failed to setup: No
GPUs found
** Package changed: gdm3 (Ubuntu) => ubuntu
** Also affects: mutter (Ubuntu)
Importance: Undecided
Status: New
** Changed in: mutter (Ubuntu)
Status: New => Invalid
** Package changed: ubuntu => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Status: Incomplete => Opinion
** Changed in: linux (Ubuntu)
Status: Opinion => New
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2128840
Title:
Automatic Login with gdm3 amd64 46.2-1ubuntu1~24.04.3 [335 kB] is
broken.
Status in linux package in Ubuntu:
New
Status in mesa package in Ubuntu:
New
Status in mutter package in Ubuntu:
New
Bug description:
The following updated packaged were offered:
gdm3 gir1.2-gdm-1.0 libgdm1
Upon installing these updates and rebooting, the Desktop could not be
reached. Black screen only.
Subsequent restarts were not successful.
Shutting down works when triggered from Oracle VirtualBox v7.1.12.
Accessed Ubuntu's Recovery Console and removed the Automatic Login
entries from /etc/gdm3/custom.conf and rebooted.
Was able to reach the login screen and once logged in, was able to
reach the Desktop. This was repeated several times without any issues.
Conclusion is that Automatic Login with gdm3 amd64
46.2-1ubuntu1~24.04.3 is broken. In this case, disabling Automatic
Login (Settings: System: Users) fixed the issue.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: gdm3 46.2-1ubuntu1~24.04.3
ProcVersionSignature: Ubuntu 6.8.0-85.85-generic 6.8.12
Uname: Linux 6.8.0-85-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CasperMD5CheckMismatches: ./boot/grub/grub.cfg
CasperMD5CheckResult: fail
CurrentDesktop: ubuntu:GNOME
Date: Fri Oct 17 14:15:13 2025
InstallationDate: Installed on 2024-05-16 (520 days ago)
InstallationMedia: Ubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64
(20240220)
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: gdm3
UpgradeStatus: Upgraded to noble on 2025-02-11 (248 days ago)
mtime.conffile..etc.gdm3.custom.conf: 2025-10-17T12:52:53.032766
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