Bug#794316: can't unlock desktop

[Daniel Pocock]

Package: gdm3
Version: 3.14.1-7
Severity: serious

This occurred on a jessie system using the default GNOME 3 desktop.

My laptop screen had been locked for a while.  I typed the password and
nothing happened.  After a few seconds, the screen went blank again.

Looking at journalctl I observed:


gdm-session-worker[23803]: <5>AccountsService: Failed to monitor logind
session changes: Too many open files


I looked in Google and I came across some instructions at

https://bugzilla.redhat.com/show_bug.cgi?id=1081004

and I tried them:

# loginctl list-sessions
   SESSION        UID USER             SEAT
       150       1000 daniel           seat0
       352       1000 daniel

2 sessions listed.

# loginctl show-session 150
Id=150
Name=daniel
Timestamp=Fri 2015-07-31 08:16:35 CEST
TimestampMonotonic=58211655247
VTNr=7
Display=:0
Remote=no
Service=gdm-password
Scope=session-150.scope
Leader=9094
Audit=150
Type=x11
Class=user
Active=yes
State=active
IdleHint=yes
IdleSinceHint=1438349828896720
IdleSinceHintMonotonic=68154456351

# loginctl unlock-session 150


The unlock-session command unlocked the screensaver and I was able to
see the desktop again.