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#1 2016-08-09 16:10:49

patou355
Member
Registered: 2014-05-06
Posts: 4

[X server ?] black screen before gdm appears.

Hello all.
Since this morning, I experience a problem at the start of the session. GDM (I tried with SDDM and lightDM too, same result) doesn't start, I only can see a black screen.

I tried many things :
- a simple reboot;
- downgrading the entire system;
- reupgrade the entire system;
- replacing gdm with sddm or lightDM;
- restart X.org (the mouse cursor appears on a black ground when I try that)

I don't remember everything I tried, it was a long day hmm

journalctl --this-boot contains those lines:

Aug 09 16:00:16 groschat org.gnome.Shell.desktop[482]: (gnome-shell:482): Clutter-CRITICAL **: Unable to initialize Clutter: Unable to initialize the Clutter backend: no available drivers found.
Aug 09 16:00:16 groschat org.gnome.Shell.desktop[482]: (gnome-shell:482): mutter-WARNING **: Unable to initialize Clutter.
Aug 09 16:00:16 groschat gnome-session[472]: gnome-session-binary[472]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1
Aug 09 16:00:16 groschat gnome-session-binary[472]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1
Aug 09 16:00:16 groschat gnome-session-binary[472]: Unrecoverable failure in required component org.gnome.Shell.desktop
Aug 09 16:00:16 groschat gdm[443]: GdmDisplay: display lasted 1.588887 seconds
Aug 09 16:00:16 groschat gdm[443]: Child process -470 was already dead.
Aug 09 16:00:16 groschat systemd-logind[386]: Removed session c1.
Aug 09 16:00:16 groschat gdm[443]: Child process 457 was already dead.
Aug 09 16:00:16 groschat gdm[443]: Unable to kill session worker process

Who has an idea?

Last edited by patou355 (2016-08-09 16:14:06)

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#2 2016-08-10 12:26:27

ooo
Member
Registered: 2013-04-10
Posts: 1,637

Re: [X server ?] black screen before gdm appears.

Can you start X without DM using startx?
If that fails as well, post your Xorg.0.log

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