A dialog informing about a problem was detected spawns every boot

[jfernandz]

Expected behavior
No spawning dialog

Actual behavior
A dialog spawns saying "a problem was detected..."

Steps To Reproduce

1. Boots the system as usual

Screenshots

Additional context
I'm using lightdm-webkit2-greeter instead lightdm-webkit-greeter because I didn't want to package webkitgtk if webkit2gtk is available in the official repos. Then I was wondering if this is caused because aether theme is not compatible with webkit2gtk

[NoiSek]

You'll have to provide logs of some kind, there isn't anything to go off of here and that could be happening for a number of reasons.

Try checking /var/log/lightdm/lightdm.log for further information.

[jfernandz]

@NoiSek here you have the lightdm.log

[+0.03s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.03s] DEBUG: Starting Light Display Manager 1.30.0, UID=0 PID=484
[+0.03s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.03s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.03s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.03s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.03s] DEBUG: Registered seat module local
[+0.03s] DEBUG: Registered seat module xremote
[+0.03s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.03s] DEBUG: _g_io_module_get_default: Found default implementation local (GLocalVfs) for ‘gio-vfs’
[+0.04s] DEBUG: Monitoring logind for seats
[+0.04s] DEBUG: New seat added from logind: seat0
[+0.04s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.04s] DEBUG: Seat seat0 has property CanMultiSession=no
[+0.04s] DEBUG: Seat seat0: Starting
[+0.04s] DEBUG: Seat seat0: Creating greeter session
[+0.06s] DEBUG: Seat seat0: Creating display server of type x
[+0.09s] DEBUG: Could not run plymouth --ping: Failed to execute child process “plymouth” (No such file or directory)
[+0.09s] DEBUG: Using VT 7
[+0.09s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.09s] DEBUG: XServer 0: Logging to /var/log/lightdm/x-0.log
[+0.09s] DEBUG: XServer 0: Writing X server authority to /run/lightdm/root/:0
[+0.09s] DEBUG: XServer 0: Launching X Server
[+0.09s] DEBUG: Launching process 495: /usr/bin/X :0 -seat seat0 -auth /run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.09s] DEBUG: XServer 0: Waiting for ready signal from X server :0
[+0.09s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.09s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+8.13s] DEBUG: Loading users from org.freedesktop.Accounts
[+8.13s] DEBUG: User /org/freedesktop/Accounts/User1000 added
[+11.82s] DEBUG: Got signal 10 from process 495
[+11.82s] DEBUG: XServer 0: Got signal from X server :0
[+11.82s] DEBUG: XServer 0: Connecting to XServer :0
[+11.83s] DEBUG: Seat seat0: Display server ready, starting session authentication
[+11.83s] DEBUG: Session pid=558: Started with service 'lightdm-greeter', username 'lightdm'
[+12.24s] DEBUG: Session pid=558: Authentication complete with return value 0: Success
[+12.24s] DEBUG: Seat seat0: Session authenticated, running command
[+12.24s] DEBUG: Session pid=558: Running command /usr/bin/lightdm-webkit2-greeter
[+12.24s] DEBUG: Creating shared data directory /var/lib/lightdm-data/lightdm
[+12.24s] DEBUG: Session pid=558: Logging to /var/log/lightdm/seat0-greeter.log
[+14.13s] DEBUG: Activating VT 7
[+14.13s] DEBUG: Activating login1 session c1
[+14.13s] DEBUG: Seat seat0 changes active session to c1
[+14.13s] DEBUG: Session c1 is already active
[+60.49s] DEBUG: Greeter connected version=1.30.0 api=1 resettable=false
[+66.97s] DEBUG: Greeter requests data directory for user wyre
[+66.97s] DEBUG: Creating shared data directory /var/lib/lightdm-data/wyre
[+108.80s] DEBUG: Greeter start authentication for wyre
[+108.80s] DEBUG: Session pid=3503: Started with service 'lightdm', username 'wyre'
[+108.92s] DEBUG: Session pid=3503: Got 1 message(s) from PAM
[+108.92s] DEBUG: Prompt greeter with 1 message(s)
[+112.35s] DEBUG: Continue authentication
[+112.38s] DEBUG: Session pid=3503: Authentication complete with return value 0: Success
[+112.38s] DEBUG: Authenticate result for user wyre: Success
[+112.38s] DEBUG: User wyre authorized
[+113.40s] DEBUG: Greeter requests session i3-gnome
[+113.40s] DEBUG: Seat seat0: Stopping greeter; display server will be re-used for user session
[+113.40s] DEBUG: Terminating login1 session c1
[+113.41s] DEBUG: Session pid=558: Sending SIGTERM
[+113.59s] DEBUG: Greeter closed communication channel
[+113.59s] DEBUG: Session pid=558: Exited with return value 1
[+113.59s] DEBUG: Seat seat0: Session stopped
[+113.59s] DEBUG: Seat seat0: Greeter stopped, running session
[+113.59s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
[+113.60s] DEBUG: Session pid=3503: Running command /etc/lightdm/Xsession gnome-session-i3
[+113.60s] DEBUG: Creating shared data directory /var/lib/lightdm-data/wyre
[+113.60s] DEBUG: Session pid=3503: Logging to .xsession-errors
[+116.58s] DEBUG: Activating VT 7
[+116.58s] DEBUG: Activating login1 session 2
[+116.58s] DEBUG: Seat seat0 changes active session to 
[+116.58s] DEBUG: Seat seat0 changes active session to 2
[+116.58s] DEBUG: Session 2 is already active

seat0-greeter.log just have a single line:

(lightdm-webkit2-greeter:575): Gtk-CRITICAL **: 08:48:17.148: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed

But I don't see noting strange. What I've just noticed is that the error may be independent of the theme, because I've disabled all themes and with plain lightdm-webkit2-greeter the dialog is still spawning. 🤔

[mattdmoore]

Hiya, I've just had this exact same issue; it was due to not changing the folder name after extracting Aether when installing it manually. I renamed the folder in /usr/share/lightdm-webkit/themes/ from Aether-2.2.2 to lightdm-webkit-theme-aether and it seemed to fix the problem. Hope this helps!

[scottgreenup]

I think @mattdmoore might be right. I wanted to post my logs before trying this:

Output from /var/log/lightdm/seat0-greeter.log

CONSOLE LOG [ERROR] theme_utils.dirlist(): Error opening directory “/usr/share/lightdm-webkit/themes/lightdm-webkit-theme-aether/src/img/wallpapers/”: No such file or directory
CONSOLE LOG [ERROR] theme_utils.dirlist(): Error opening directory “/usr/share/lightdm-webkit/themes/lightdm-webkit-theme-aether/src/img/logos/”: No such file or directory

[scottgreenup]

I'll confirm that this fix works. I'd recommend updating the README.md to reflect this at the very least?