Comment 105 for bug 1689825

1. apt-get install dbus-user-session
2. reboot
3. confirm flatpak not installed:
emc@emc-office:~$ which flatpak

4. Check reverse dependancies and ensure there is nothing dependant on it

emc@emc-office:~$ apt-rdepends --reverse dbus-user-session
Reading package lists... Done
Building dependency tree
Reading state information... Done
dbus-user-session
  Reverse Depends: razer-daemon (1.1.15-0ubuntu1)
razer-daemon
  Reverse Depends: polychromatic (>= 0.3.10-xenial)
polychromatic
emc@emc-office:~$ sudo apt-get remove --purge razer-daemon polychromatic
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package 'polychromatic' is not installed, so not removed
Package 'razer-daemon' is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.

5. Check Passwords and Keys

Login section is missing

6. start chrome

emc@emc-office:~$ /opt/google/chrome/chrome
[4151:4181:0823/233754.144116:ERROR:nss_util.cc(802)] After loading Root Certs, loaded==false: NSS error code: -8018
Gkr-Message: secret service operation failed: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
[4151:4151:0823/233844.494199:ERROR:background_mode_manager_aura.cc(13)] Not implemented reached in virtual void BackgroundModeManager::EnableLaunchOnStartup(bool)
Gkr-Message: secret service operation failed: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
[4151:4176:0823/233909.532194:ERROR:token_service_table.cc(130)] Failed to decrypt token for service AccountId-103397427961759974994

7. Remove dbus-user-session, reboot and confirm problem resolved

Yep.

So I think this is clear that adding/deleting dbus-user-session induces seahorse to not unlock, cause undetermined, which then sets off failures for anyone using keys.