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sancho.s ReinstateMonicaCellio avatar Ubuntu

Can't log in to Gnome session

pl flag
sancho.s ReinstateMonicaCellio

EDIT

What I tried

To solve problem #2 below

  1. Logging into VT2 and running

    $ startx -- :0

(or :1) gives me

...
EE) Please also check the log file at "/home/user1/.local/share/xorg/Xorg.1.log" for additional...
xinit: giving up
xinit: unable to connect to X server: Connection refused
xinit: server error

and

$ cat /home/user1/.local/share/xorg/Xorg.1.log
...
[ 10263.352] (II) Loading /lib/x86_64-linux-gnu/nvidia/xorg/libglxserver_nvidia.so
[ 10263.357] (II) Module glxserver_nvidia: vendor="NVIDIA Corporation"
[ 10263.357]    compiled for 1.6.99.901, module version = 1.0.0
[ 10263.357]    Module class: X.Org Server Extension
[ 10263.357] (II) NVIDIA GLX Module  470.57.02  Tue Jul 13 16:10:58 UTC 2021
[ 10263.357] (EE)
[ 10263.357] (EE) Backtrace:
[ 10263.357] (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x13c) [0x55f4e294e60c]
[ 10263.357] (EE) 1: /lib/x86_64-linux-gnu/libpthread.so.0 (funlockfile+0x60) [0x7f9b646623c0]
[ 10263.357] (EE) 2: ? (?+0x0) [0x0]
[ 10263.357] (EE)
[ 10263.357] (EE) Segmentation fault at address 0x0
[ 10263.357] (EE)
Fatal server error:
[ 10263.357] (EE) Caught signal 11 (Segmentation fault). Server aborting

The problem(s)

Since just now, I booted (I will number this boot (-1)) and I cannot log into a Gnome session. I have Ubuntu 20.04.3 LTS. The problem: Entering my password, flashes the screen as it would do in a normal login to display my desktop, but instead it brings me back to the login screen. Login fails with any of the two users (see below), so I guess it is not something related to any of the users, that I could solve by logging in in a console and mv ~/.config ~/.config-old + rebooting.

This is a timeline of what happened

  (A)      (B)      (C)             (D)              (E)         
  work     (-2)     some       login ok VT1    failed login VT1  
normally          tinkering     both users        both users               

      (F)           (G)              (H)
    install         (-1)   failed login VT1 + No X VT2
libnvidia-gl-470                  both users

and I will describe it next.

  • I was working normally (A), rebooted (B) = (-2), and still working normally. I had only user user1 that I used for everything.

  • At (C) I created user guest a couple of days ago, to test something about login screens (and the failure may be related to this). I was logged into a gnome session with user1 in virtual terminal VT2 (Ctrl+Alt+F2) and I could work normally. I could log in normally with both users in VT1 (Ctrl+Alt+F1) as well. I was testing killing the sessions in VT1 with killall -3 gnome-shell and related commands, but still did not see any problem (D).

  • At some point (E) I started seeing in VT1 the problem #1 above. I do not know what I did in between (D) and (E), perhaps some of the commands tested generated the problem.

  • (F) Manually installed sudo apt install libnvidia-470-gl. As far as I remember, the problem appeared before this.

  • After sleeping the PC and resuming, it was frozen, so I cold booted it (G) = (-1). I slept / hibernated / resumed the PC a few times before, in between (E) and (G).

  • Now (H) VT1 has problem #1, and VT2 only gives me a console, not an X session (problem #2).

So I have two terribly combined problems.
I mean to solve both.

Solving #2 could at least make it much easier working to solve #1, within an X session in the same PC that I have the problem.

Further possibly relevant info:

  1. Up until boot (-1), VT2 was shown on startup, and this is my experience with all Ubuntu's I installed since a few years ago, probably all after the change of layout of X sessions / consoles). Now (the failing) VT1 is shown on startup.

Related

  1. Ubuntu gets stuck in a login loop
  2. Can't log to my Ubuntu session after power failure
  3. Can't log in to desktop
  4. https://www.linux.org/threads/ubuntu-wont-let-me-sign-in.26728/
  5. https://ubuntuforums.org/showthread.php?t=185555
  6. https://unix.stackexchange.com/questions/85383/how-to-start-a-second-x-session
185
1 + 5
guiverc avatar
cn flag
guiverc
Does this answer your question? [Ubuntu gets stuck in a login loop](https://askubuntu.com/questions/223501/ubuntu-gets-stuck-in-a-login-loop)
0
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sancho.s ReinstateMonicaCellio avatar
pl flag
sancho.s ReinstateMonicaCellio
@guiverc - Not so far... there are lots of suggestions. and what works (if anything) varies widely. I am covering them. But since I am sort of "desperate" to get going, perhaps someone could identify my specific case and help with either problem #1 or #2. I am not lazy, and I don't see any problem with posting while I work.
0
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guiverc avatar
cn flag
guiverc
Do you have space in $HOME; as it's the most common cause in my experience, unless changes were made prior session (leading to the issue), upgrades were installed last session (again leading to the issue) - ie. in my experience it's lack of disk space or the operator has a clue as to the real issue
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sancho.s ReinstateMonicaCellio avatar
pl flag
sancho.s ReinstateMonicaCellio
@guiverc - No problems with disk space. >25Gb free in `/` and `/home`.
0
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darth_epoxy avatar
nl flag
darth_epoxy
If you can get a terminal type `ls /usr/bin/*session` and update your question with the outpur. Then type `sudo systemctl set-default graphical.target` and reboot.
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DrumM avatar
in flag
DrumM
We're March 2023 and I have again encountered that issue, now with Fedora 37 too on a different Dell laptop. I had it twice with Ubuntu in December & January. Seems really related to Gnome in my opinion, not really distro dependent I'm afraid...
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Score:0
sancho.s ReinstateMonicaCellio avatar Ubuntu
pl flag
sancho.s ReinstateMonicaCellio

Solution:

$ sudo apt install nvidia-driver-470
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