Public bug reported:
The main symptom is that, after the system boots up fine, reaches GDM,
and the user logs in, the screen turns black before the Gnome Desktop
appears. Switching to a text-based TTY and back to the Desktop works
around it, making the Desktop show and work normally.
This issue began when I was reinstalling from Ubuntu 22.04 (Which had no
issues) to Ubuntu 24.04 LTS from a (non release upgraded) 24.04
installation (based on an amd64 Desktop installer ISO from last year). I
ran a number of diagnostics which all yielded the same output as in this
*report*. I ultimately ran sudo nvidia-xconfig with an output of
"WARNING: Unable to locate/open X configuration file.New X configuration
file written to '/etc/X11/xorg.conf'" - I cannot remember the step I
used after that, but it seemed to have 'resolved' the issue. A few
successful logins later and instead of a black screen. It was a snapshot
of the grey login and the entire system was completely froze. I rebooted
a few times with the same outcome.
After much help and suggestions, I decided to do a BIOS upgrade and
fresh installation to establish whether this situation also occurs on a
clean 24.04.2 install and it does.
These are the attempts I made on that new system to no avail:
- Attempted, without change of symptoms:
echo "blacklist i2c_nvidia_gpu" | sudo tee
/etc/modprobe.d/blacklist_i2c-nvidia-gpu.conf >/dev/null && sudo
update-initramfs -u && reboot
- Attempted, without change of symptoms:
Login, from GDM graphical login, to Gnome on Wayland rather than Gnome on Xorg
- Attempted, without change of symptoms:
Setting, in gdm3.conf, WaylandEnable to "true" or "false", reboot
One thing to note:
The symptoms did 'NOT' occur when enabling automatic login, so that GDM would
not ask for username + password.
This may or may not be directly related to the repeatedly logged "Failed
to grab modeset ownership" message, which has appeared in my diagnostics
checks.
I currently don't have a solution or have resolved my issue and instead
rely on TTF switching to get into the desktop.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: nvidia-driver-550 550.120-0ubuntu0.24.04.1
ProcVersionSignature: Ubuntu 6.11.0-19.19~24.04.1-generic 6.11.11
Uname: Linux 6.11.0-19-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.28.1-0ubuntu3.5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Mar 24 21:43:54 2025
InstallationDate: Installed on 2025-03-23 (1 days ago)
InstallationMedia: Ubuntu 24.04.2 LTS "Noble Numbat" - Release amd64 (20250215)
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
SourcePackage: nvidia-graphics-drivers-550
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: nvidia-graphics-drivers-550 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
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https://bugs.launchpad.net/bugs/2104054
Title:
Black screen after log in, TTY Switching - to Solve.
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