Installed a fresh 18.04 on a Lenovo T440. After 2 days, Ubuntu presents me a loopback into login screen every time I try to login.
ALT + STRG + F2 brings me into console, where I can proceed with login and startx brings me into a blank desktop environment, where some stuff is missing (this is unity-like taskbar thing for example).
Tried sudo apt-get install --reinstall ubuntu-desktop
and sudo dpkg-reconfigure gdm3
. Nothing.
service gdm3 restart
just gets me back into loginscreen, where the problem persists.
How can I fix this? Is this known as a bug of some kind? Is there a failsafe display manager for older hardware on 18.04?
I would be ok with using another dm if there is no other way to fix this. I just need something stable. Used unity (16.04) and / or mate environment (mint) till now. First time with gdm3..
Edit: Output of gdm.service (logged in with "gnome" after installing "gnome" as dm - see answer below)
● gdm.service - GNOME Display Manager Loaded: loaded (/lib/systemd/system/gdm.service; static; vendor preset: enabled) Active: active (running) since Wed 2020-03-04 10:07:29 CET; 13min ago Process: 1009 ExecStartPre=/usr/share/gdm/generate-config (code=exited, status=0/SUCCESS) Main PID: 1011 (gdm3) Tasks: 3 (limit: 4291) CGroup: /system.slice/gdm.service └─1011 /usr/sbin/gdm3 Mär 04 10:07:29 x-ThinkPad-T440 systemd[1]: Starting GNOME Display Manager... Mär 04 10:07:29 x-ThinkPad-T440 systemd[1]: Started GNOME Display Manager. Mär 04 10:07:29 x-ThinkPad-T440 gdm-launch-environment][1023]: pam_unix(gdm-launch-environment:session): session opened for user gdm by (uid=0) Mär 04 10:07:37 x-ThinkPad-T440 gdm-password][1349]: PAM unable to dlopen(pam_gnome_keyring.so): /lib/security/pam_gnome_keyring.so: Kann die Shared-Object-Datei nicht öffn Mär 04 10:07:37 x-ThinkPad-T440 gdm-password][1349]: PAM adding faulty module: pam_gnome_keyring.so Mär 04 10:07:39 x-ThinkPad-T440 gdm-password][1349]: pam_unix(gdm-password:session): session opened for user x by (uid=0) Mär 04 10:07:44 x-ThinkPad-T440 gdm-launch-environment][1876]: pam_unix(gdm-launch-environment:session): session opened for user gdm by (uid=0) Mär 04 10:10:14 x-ThinkPad-T440 gdm-password][2042]: PAM unable to dlopen(pam_gnome_keyring.so): /lib/security/pam_gnome_keyring.so: Kann die Shared-Object-Datei nicht öffn Mär 04 10:10:14 x-ThinkPad-T440 gdm-password][2042]: PAM adding faulty module: pam_gnome_keyring.so Mär 04 10:10:23 x-ThinkPad-T440 gdm-password][2042]: pam_unix(gdm-password:session): session opened for user x by (uid=0)
sudo apt purge gdm3 sudo reboot sudo apt install gdm3 sudo service gdm start
, which gave me outputcreating config file.../greeter.dconf-defaults with new version gdm.service is not active, cannot reload. invoke-rc.d: initscript gdm3, action "reload" failed.
sudo systemctl start gdm3
thensystemctl status gdm3
ubuntu-gnome-desktop
before).