Bug 1032014

I can confirm this problem. However, it also occurs on my multi-seat setup with seat0. This is problematic as inactive sessions require authentication from policykit to do just about anything (mounting usb, shutting down, ...)

Just to clarify, here is some output from loginctl

root@localhost ~> loginctl
   SESSION        UID USER             SEAT            
        c1         42 gdm              seat0           
        c2         42 gdm              seat2           
         9       1000 toon             seat0           

3 sessions listed.
root@localhost ~> loginctl show-session c1
Id=c1
Timestamp=Thu 2014-08-07 12:01:52 CEST
TimestampMonotonic=8962500
VTNr=0
Display=:0
Remote=no
Service=gdm-launch-environment
Scope=session-c1.scope
Leader=1112
Audit=0
Type=x11
Class=greeter
Active=no
State=closing
IdleHint=no
IdleSinceHint=0
IdleSinceHintMonotonic=0
Name=gdm
root@localhost ~> loginctl show-session c2
Id=c2
Timestamp=Thu 2014-08-07 12:01:52 CEST
TimestampMonotonic=9047612
VTNr=0
Display=:1
Remote=no
Service=gdm-launch-environment
Scope=session-c2.scope
Leader=1138
Audit=0
Type=x11
Class=greeter
Active=yes
State=active
IdleHint=yes
IdleSinceHint=1407406012116551
IdleSinceHintMonotonic=309042921
Name=gdm
root@localhost ~> loginctl show-session 9
Id=9
Timestamp=Thu 2014-08-07 19:33:06 CEST
TimestampMonotonic=27083856607
VTNr=0
Display=:0
Remote=no
Service=gdm-password
Scope=session-9.scope
Leader=6967
Audit=9
Type=x11
Class=user
Active=no
State=online
IdleHint=no
IdleSinceHint=0
IdleSinceHintMonotonic=0
Name=toon

The problem with inactive non-seat0 seats can be solved with a patch David Herrmann pushed to systemd v209:

http://cgit.freedesktop.org/systemd/systemd/commit/?id=3fdb2494c1e24c0a020f5b54022d2c751fd26f50

On the other hand, the problem with inactive seat0 sessions may be related to a race condition between seat0 and non-seat0 X servers, with the non-seat0 one "stealing" the VT from the seat0 one.

xorg-server 1.16 includes a patch that prevents non-seat0 X servers from touching VTs (since they don't use it at all), avoiding that race condition. The patch is available here:

http://cgit.freedesktop.org/xorg/xserver/commit/?id=46cf2a60934076bf568062eb83121ce90b6ff596

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