Public bug reported:

This is not a problem using only built in laptop screen however when I
attach an external monitor and choose

Setting->Display->Single Display

then choose the external monitor to be the only active screen -> then
when I suspend upon resume the external monitor lights up showing the
password prompt which is good however after entering password all my
launched applications are no longer running ... according to
/var/log/auth.log I get logged me out during this suspend/resume - this
issue is repeatable

getting same behaviour whether using nouveau or nvidia drivers ... its a
fresh 18.10 install not an upgrade


Here is a clip from /var/log/auth.log look closely at messages just after `Lid 
opened`


-------------------------

Nov 30 21:17:01 nuem CRON[17437]: pam_unix(cron:session): session opened for 
user root by (uid=0)
Nov 30 21:17:01 nuem CRON[17437]: pam_unix(cron:session): session closed for 
user root
Nov 30 21:20:18 nuem gnome-keyring-daemon[3057]: asked to register item 
/org/freedesktop/secrets/collection/login/863, but it's already registered
Nov 30 21:20:19 nuem gnome-keyring-daemon[3057]: asked to register item 
/org/freedesktop/secrets/collection/login/862, but it's already registered
Nov 30 21:40:36 nuem gnome-keyring-daemon[3057]: asked to register item 
/org/freedesktop/secrets/collection/login/1, but it's already registered
Nov 30 21:40:39 nuem gnome-keyring-daemon[3057]: message repeated 2 times: [ 
asked to register item /org/freedesktop/secrets/collection/login/1, but it's 
already registered]
Nov 30 21:49:25 nuem systemd-logind[523]: Lid closed.
Nov 30 21:49:29 nuem systemd-logind[523]: Lid opened.
Nov 30 21:49:51 nuem systemd-logind[523]: Operation 'sleep' finished.
Nov 30 21:49:52 nuem polkitd(authority=local): Unregistered Authentication 
Agent for unix-session:2 (system bus name :1.376, object path 
/org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) 
(disconnected from bus)
Nov 30 21:49:52 nuem gdm-password]: pam_unix(gdm-password:session): session 
closed for user upha
Nov 30 21:49:52 nuem dbus-daemon[507]: [system] Rejected send message, 2 
matched rules; type="method_call", sender=":1.2100" (uid=1000 pid=31115 
comm="/usr/bin/pulseaudio --daemonize=no " label="unconfined") 
interface="org.freedesktop.DBus.ObjectManager" member="GetManagedObjects" error 
name="(unset)" requested_reply="0" destination="org.bluez" (bus)
Nov 30 21:49:52 nuem systemd-logind[523]: Session 2 logged out. Waiting for 
processes to exit.
Nov 30 21:49:53 nuem gdm-launch-environment]: 
pam_unix(gdm-launch-environment:session): session opened for user gdm by (uid=0)
Nov 30 21:49:53 nuem systemd-logind[523]: New session c2 of user gdm.
Nov 30 21:49:53 nuem systemd: pam_unix(systemd-user:session): session opened 
for user gdm by (uid=0)
Nov 30 21:49:55 nuem systemd-logind[523]: Removed session 2.
Nov 30 21:49:56 nuem systemd: pam_unix(systemd-user:session): session closed 
for user upha
Nov 30 21:49:57 nuem polkitd(authority=local): Registered Authentication Agent 
for unix-session:c2 (system bus name :1.2108 [/usr/bin/gnome-shell], object 
path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
Nov 30 21:50:07 nuem gdm-password]: pam_unix(gdm-password:session): session 
opened for user upha by (uid=0)
Nov 30 21:50:07 nuem systemd-logind[523]: New session 37 of user upha.
Nov 30 21:50:07 nuem systemd: pam_unix(systemd-user:session): session opened 
for user upha by (uid=0)
Nov 30 21:50:17 nuem polkitd(authority=local): Registered Authentication Agent 
for unix-session:37 (system bus name :1.2405 [/usr/bin/gnome-shell], object 
path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
Nov 30 21:50:19 nuem systemd-logind[523]: Session c2 logged out. Waiting for 
processes to exit.
Nov 30 21:50:19 nuem polkitd(authority=local): Unregistered Authentication 
Agent for unix-session:c2 (system bus name :1.2108, object path 
/org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) 
(disconnected from bus)
Nov 30 21:50:19 nuem systemd-logind[523]: Removed session c2.
Nov 30 21:52:50 nuem systemd-logind[523]: Operation 'sleep' finished.
Nov 30 21:52:59 nuem gdm-password]: gkr-pam: unlocked login keyring
Nov 30 21:53:42 nuem systemd-logind[523]: Operation 'sleep' finished.
Nov 30 21:53:50 nuem gdm-password]: gkr-pam: unlocked login keyring
Nov 30 22:17:02 nuem CRON[6950]: pam_unix(cron:session): session opened for 
user root by (uid=0)
Nov 30 22:17:02 nuem CRON[6950]: pam_unix(cron:session): session closed for 
user root


-----------------

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: gnome-shell 3.30.1-2ubuntu1
ProcVersionSignature: Ubuntu 4.18.0-11.12-generic 4.18.12
Uname: Linux 4.18.0-11-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.10-0ubuntu13.1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Fri Nov 30 23:41:25 2018
DisplayManager: gdm3
GsettingsChanges:
 
InstallationDate: Installed on 2018-11-25 (5 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: gnome-shell (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug cosmic

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https://bugs.launchpad.net/bugs/1806165

Title:
  Ubuntu 18.10 I get logged off on resume from suspend - Unregistered
  Authentication Agent for unix-session

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