Public bug reported:

GNOME Shell was unresponsive (could move my cursor and I think Shell
elements were changing colour etc as I hovered over them but clicking
anything didn't produce any actual effects) after trying to log into an
email account on the Geary Flatpak and opening Firefox (Deb) pretty much
simultaneously.

Not sure this is reproducible.

I checked `journalctl -r` and I had 150,000 repeats (in a short period
of time) of `adam-thinkpad-t430 gnome-shell[4614]:
gtk_action_observer_action_removed: assertion 'GTK_IS_ACTION_OBSERVER
(observer)' failed`, I don't think this has come up in the logs aside
from for that crash...

Pretty sure that Shell is to blame, not Geary or Firefox...

```
$ flatpak info org.gnome.Geary/x86_64/stable
Ref: app/org.gnome.Geary/x86_64/stable
ID: org.gnome.Geary
Arch: x86_64
Branch: stable
Origin: flathub
Collection ID: org.flathub.Stable
Date: 2018-08-29 14:38:53 +0000
Subject: Update for 0.12.4. (c4d8833e)
Commit: c6deb6487b655567845fe8a71442c1d04841cc7064dbbf58c93e5164296a87e8
Parent: 5de6d62d384c0213ea3998249b9c28bcf0d75a17a1c52c29da85c7588ed0aa89
Location: 
/var/lib/flatpak/app/org.gnome.Geary/x86_64/stable/c6deb6487b655567845fe8a71442c1d04841cc7064dbbf58c93e5164296a87e8
Installed size: 6.9 MB
Runtime: org.gnome.Platform/x86_64/3.28
Sdk: org.gnome.Sdk/x86_64/3.28
```

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: gnome-shell 3.30.1-2ubuntu1.18.10.1
ProcVersionSignature: Ubuntu 4.18.0-11.12-generic 4.18.12
Uname: Linux 4.18.0-11-generic x86_64
ApportVersion: 2.20.10-0ubuntu13.1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Nov 13 22:46:13 2018
DisplayManager: gdm3
InstallationDate: Installed on 2017-08-03 (467 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to cosmic on 2018-10-21 (23 days ago)

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


** Tags: amd64 apport-bug cosmic package-from-proposed third-party-packages

** Description changed:

- GNOME Shell crashed after trying to log into an email account on the
- Geary Flatpak and opening Firefox (Deb) pretty much simultaneously.
+ GNOME Shell was unresponsive (could move my cursor and I think Shell
+ elements were changing colour etc as I hovered over them but clicking
+ anything didn't produce any actual effects) after trying to log into an
+ email account on the Geary Flatpak and opening Firefox (Deb) pretty much
+ simultaneously.
  
  Not sure this is reproducible.
  
  I checked `journalctl -r` and I had 150,000 repeats (in a short period
  of time) of `adam-thinkpad-t430 gnome-shell[4614]:
  gtk_action_observer_action_removed: assertion 'GTK_IS_ACTION_OBSERVER
  (observer)' failed`, I don't think this has come up in the logs aside
  from for that crash...
  
  Pretty sure that Shell is to blame, not Geary or Firefox...
  
  ```
  $ flatpak info org.gnome.Geary/x86_64/stable
  Ref: app/org.gnome.Geary/x86_64/stable
  ID: org.gnome.Geary
  Arch: x86_64
  Branch: stable
  Origin: flathub
  Collection ID: org.flathub.Stable
  Date: 2018-08-29 14:38:53 +0000
  Subject: Update for 0.12.4. (c4d8833e)
  Commit: c6deb6487b655567845fe8a71442c1d04841cc7064dbbf58c93e5164296a87e8
  Parent: 5de6d62d384c0213ea3998249b9c28bcf0d75a17a1c52c29da85c7588ed0aa89
  Location: 
/var/lib/flatpak/app/org.gnome.Geary/x86_64/stable/c6deb6487b655567845fe8a71442c1d04841cc7064dbbf58c93e5164296a87e8
  Installed size: 6.9 MB
  Runtime: org.gnome.Platform/x86_64/3.28
  Sdk: org.gnome.Sdk/x86_64/3.28
  ```
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: gnome-shell 3.30.1-2ubuntu1.18.10.1
  ProcVersionSignature: Ubuntu 4.18.0-11.12-generic 4.18.12
  Uname: Linux 4.18.0-11-generic x86_64
  ApportVersion: 2.20.10-0ubuntu13.1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Nov 13 22:46:13 2018
  DisplayManager: gdm3
  InstallationDate: Installed on 2017-08-03 (467 days ago)
  InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
  SourcePackage: gnome-shell
  UpgradeStatus: Upgraded to cosmic on 2018-10-21 (23 days ago)

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/1803208

Title:
  gnome-shell[4614]: gtk_action_observer_action_removed: assertion
  'GTK_IS_ACTION_OBSERVER (observer)' failed

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  GNOME Shell was unresponsive (could move my cursor and I think Shell
  elements were changing colour etc as I hovered over them but clicking
  anything didn't produce any actual effects) after trying to log into
  an email account on the Geary Flatpak and opening Firefox (Deb) pretty
  much simultaneously.

  Not sure this is reproducible.

  I checked `journalctl -r` and I had 150,000 repeats (in a short period
  of time) of `adam-thinkpad-t430 gnome-shell[4614]:
  gtk_action_observer_action_removed: assertion 'GTK_IS_ACTION_OBSERVER
  (observer)' failed`, I don't think this has come up in the logs aside
  from for that crash...

  Pretty sure that Shell is to blame, not Geary or Firefox...

  ```
  $ flatpak info org.gnome.Geary/x86_64/stable
  Ref: app/org.gnome.Geary/x86_64/stable
  ID: org.gnome.Geary
  Arch: x86_64
  Branch: stable
  Origin: flathub
  Collection ID: org.flathub.Stable
  Date: 2018-08-29 14:38:53 +0000
  Subject: Update for 0.12.4. (c4d8833e)
  Commit: c6deb6487b655567845fe8a71442c1d04841cc7064dbbf58c93e5164296a87e8
  Parent: 5de6d62d384c0213ea3998249b9c28bcf0d75a17a1c52c29da85c7588ed0aa89
  Location: 
/var/lib/flatpak/app/org.gnome.Geary/x86_64/stable/c6deb6487b655567845fe8a71442c1d04841cc7064dbbf58c93e5164296a87e8
  Installed size: 6.9 MB
  Runtime: org.gnome.Platform/x86_64/3.28
  Sdk: org.gnome.Sdk/x86_64/3.28
  ```

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: gnome-shell 3.30.1-2ubuntu1.18.10.1
  ProcVersionSignature: Ubuntu 4.18.0-11.12-generic 4.18.12
  Uname: Linux 4.18.0-11-generic x86_64
  ApportVersion: 2.20.10-0ubuntu13.1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Nov 13 22:46:13 2018
  DisplayManager: gdm3
  InstallationDate: Installed on 2017-08-03 (467 days ago)
  InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
  SourcePackage: gnome-shell
  UpgradeStatus: Upgraded to cosmic on 2018-10-21 (23 days ago)

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