Arch Linux

virtualflyer

Member

Registered: 2017-01-08

Posts: 4

[SOLVED] Lightdm takes me back to its own screen on login

Hello, everyone, I have an Arch Linux machine on Antergos image with lightdm and gnome.
It's been working perfectly till I decided to create a /home partition. I created it, copied everything and added mount point to fstab, then I moved the old one to a backup place.
On reboot I can't get past the login screen, actually I can, but I'm kicked back.

Here's lightdm.log 

[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.18.3, UID=0 PID=500
[+0.00s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.00s] DEBUG: Registered seat module xlocal
[+0.00s] DEBUG: Registered seat module xremote
[+0.00s] DEBUG: Registered seat module unity
[+0.00s] DEBUG: Monitoring logind for seats
[+0.00s] DEBUG: New seat added from logind: seat0
[+0.00s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.00s] DEBUG: Seat seat0: Starting
[+0.00s] DEBUG: Seat seat0: Creating greeter session
[+0.00s] DEBUG: Seat seat0: Creating display server of type x
[+0.01s] DEBUG: Could not run plymouth --ping: Failed to execute child process "plymouth" (No such file or directory)
[+0.01s] DEBUG: Using VT 7
[+0.01s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.01s] DEBUG: DisplayServer x-0: Logging to /var/log/lightdm/x-0.log
[+0.01s] DEBUG: DisplayServer x-0: Writing X server authority to /run/lightdm/root/:0
[+0.01s] DEBUG: DisplayServer x-0: Launching X Server
[+0.01s] DEBUG: Launching process 509: /usr/sbin/X :0 -seat seat0 -auth /run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.01s] DEBUG: DisplayServer x-0: Waiting for ready signal from X server :0
[+0.01s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.01s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.03s] DEBUG: Loading users from org.freedesktop.Accounts
[+0.03s] DEBUG: User /org/freedesktop/Accounts/User1000 added
[+0.03s] DEBUG: Seat seat0 changes active session to 
[+0.03s] CRITICAL: session_get_login1_session_id: assertion 'session != NULL' failed
[+1.05s] DEBUG: Got signal 10 from process 509
[+1.05s] DEBUG: DisplayServer x-0: Got signal from X server :0
[+1.05s] DEBUG: DisplayServer x-0: Connecting to XServer :0
[+1.05s] DEBUG: Seat seat0: Display server ready, starting session authentication
[+1.05s] DEBUG: Session pid=533: Started with service 'lightdm-greeter', username 'lightdm'
[+1.06s] DEBUG: Session pid=533: Authentication complete with return value 0: Success
[+1.06s] DEBUG: Seat seat0: Session authenticated, running command
[+1.06s] DEBUG: Session pid=533: Running command /usr/sbin/lightdm-webkit2-greeter
[+1.06s] DEBUG: Creating shared data directory /var/lib/lightdm-data/lightdm
[+1.06s] DEBUG: Session pid=533: Logging to /var/log/lightdm/seat0-greeter.log
[+1.10s] DEBUG: Activating VT 7
[+1.10s] DEBUG: Activating login1 session c2
[+1.44s] DEBUG: Greeter connected version=1.18.3 resettable=false
[+1.85s] DEBUG: Greeter requests data directory for user matteo
[+1.85s] DEBUG: Creating shared data directory /var/lib/lightdm-data/matteo
[+3.76s] DEBUG: Greeter start authentication for matteo
[+3.76s] DEBUG: Session pid=627: Started with service 'lightdm', username 'matteo'
[+3.77s] DEBUG: Session pid=627: Got 1 message(s) from PAM
[+3.77s] DEBUG: Prompt greeter with 1 message(s)
[+3.90s] DEBUG: Cancel authentication
[+3.90s] DEBUG: Session pid=627: Sending SIGTERM
[+3.90s] DEBUG: Session pid=627: Terminated with signal 15
[+3.90s] DEBUG: Session: Failed during authentication
[+3.90s] DEBUG: Seat seat0: Session stopped
[+3.90s] DEBUG: Greeter start authentication for matteo
[+3.90s] DEBUG: Session pid=628: Started with service 'lightdm', username 'matteo'
[+3.91s] DEBUG: Session pid=628: Got 1 message(s) from PAM
[+3.91s] DEBUG: Prompt greeter with 1 message(s)
[+11.06s] DEBUG: Continue authentication
[+11.08s] DEBUG: Session pid=628: Authentication complete with return value 0: Success
[+11.08s] DEBUG: Authenticate result for user matteo: Success
[+11.08s] DEBUG: User matteo authorized
[+12.08s] DEBUG: Greeter requests session xfce
[+12.11s] DEBUG: Writing /home/matteo/.dmrc
[+12.13s] DEBUG: Seat seat0: Stopping greeter; display server will be re-used for user session
[+12.13s] DEBUG: Session pid=533: Sending SIGTERM
[+12.17s] DEBUG: Greeter closed communication channel
[+12.17s] DEBUG: Session pid=533: Exited with return value 0
[+12.17s] DEBUG: Seat seat0: Session stopped
[+12.17s] DEBUG: Seat seat0: Greeter stopped, running session
[+12.17s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
[+12.17s] DEBUG: Session pid=628: Running command /etc/lightdm/Xsession startxfce4
[+12.17s] DEBUG: Creating shared data directory /var/lib/lightdm-data/matteo
[+12.17s] DEBUG: Session pid=628: Logging to .xsession-errors
[+12.25s] DEBUG: Activating VT 7
[+12.25s] DEBUG: Activating login1 session c3
[+12.25s] DEBUG: Seat seat0 changes active session to 

and seat0-greeter.log

libva info: VA-API version 0.39.4
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_39
libva info: va_openDriver() returns 0
file:///usr/share/lightdm-webkit/themes/antergos/js/greeter.js:109:15: CONSOLE LOG cache_get() called with key: ant:background_manager:current_background
file:///usr/share/lightdm-webkit/themes/antergos/js/greeter.js:109:15: CONSOLE LOG cache_get() key: ant:background_manager:current_background value is: /usr/share/antergos/wallpapers/c65sk3mshowxrtlljbvh.jpg
file:///usr/share/lightdm-webkit/themes/antergos/js/greeter.js:109:15: CONSOLE LOG cache_get() called with key: ant:user:matteo:session
file:///usr/share/lightdm-webkit/themes/antergos/js/greeter.js:109:15: CONSOLE LOG cache_get() key: ant:user:matteo:session value is: xfce
file:///usr/share/lightdm-webkit/themes/antergos/js/greeter.js:109:15: CONSOLE LOG Last session for matteo was: xfce
file:///usr/share/lightdm-webkit/themes/antergos/js/greeter.js:109:15: CONSOLE LOG Adding GNOME to the session list...
file:///usr/share/lightdm-webkit/themes/antergos/js/greeter.js:109:15: CONSOLE LOG Adding GNOME to the session list...
file:///usr/share/lightdm-webkit/themes/antergos/js/greeter.js:109:15: CONSOLE LOG Adding GNOME classico to the session list...
file:///usr/share/lightdm-webkit/themes/antergos/js/greeter.js:109:15: CONSOLE LOG Adding GNOME su Xorg to the session list...
file:///usr/share/lightdm-webkit/themes/antergos/js/greeter.js:109:15: CONSOLE LOG Adding Sessione di Xfce to the session list...
file:///usr/share/lightdm-webkit/themes/antergos/js/greeter.js:109:15: CONSOLE LOG cache_get() called with key: ant:background_manager:random_background
file:///usr/share/lightdm-webkit/themes/antergos/js/greeter.js:109:15: CONSOLE LOG cache_get() key: ant:background_manager:random_background value is: true

What I've tried. I've read that it might have been a problem with .Xauthority or .ICEautorithy not having the right permissions, but common solutions didn't apply and permissions seemed just fine. Also I've tried going with lxdm and even xfce to make sure the problem wasn't with lightdm or gnome themselves.

I could tecnically remove the mount point, restore the old home directory and try, but I'd really like to avoid this and try to understand what's actually happening in here.

Thank you

Last edited by virtualflyer (2017-01-08 22:16:41)

virtualflyer

Member

Registered: 2017-01-08

Posts: 4

Re: [SOLVED] Lightdm takes me back to its own screen on login

It was easier than thought. Copying had gone wrong and not every file or folder had been given back to its rightful owner so they were owned by root root.
A couple of chown solved the problem