Is this really related to the linked gnome-shell bug? It doesn't look related to me. This bug is completely reproducible whereas the linked one seems to be an intermittent complete failure of the shell.
-- 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/1734095 Title: Software & Updates not showing authorization popup [gnome-shell[N]: pushModal: invocation of begin_modal failed] Status in GNOME Shell: Confirmed Status in gnome-shell package in Ubuntu: Confirmed Bug description: After upgrading to Ubuntu 17.10 (from 17.04), if I open the Software and Updates app and attempt to change anything it does not popup the authorization dialog and will not let changes through. In sylog I see Nov 23 10:07:04 tigger gnome-shell[2142]: polkitAuthenticationAgent: Received 3 identities that can be used for authentication. Only considering one. Nov 23 10:07:04 tigger gnome-shell[2142]: pushModal: invocation of begin_modal failed Nov 23 10:07:04 tigger gnome-shell[2142]: polkitAuthenticationAgent: Failed to show modal dialog. Dismissing authentication request for action-id com.ubuntu.softwareproperties.applychanges cookie 1-28e9d285258e7cd70c2af2980886a55b-1-cff4894642cc4a6c033597370ee1f740 Nov 23 10:07:04 tigger software-properties-gnome.desktop[3367]: ERROR:root:Authentication canceled, changes have not been saved Before the upgrade it was ok. Other apps that require authorisation function as expected. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: gnome-shell 3.26.1-0ubuntu5 ProcVersionSignature: Ubuntu 4.13.0-17.20-generic 4.13.8 Uname: Linux 4.13.0-17-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.5 Architecture: amd64 CurrentDesktop: GNOME Date: Thu Nov 23 10:07:44 2017 DisplayManager: lightdm InstallationDate: Installed on 2014-10-21 (1128 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20141017) SourcePackage: gnome-shell UpgradeStatus: Upgraded to artful on 2017-11-22 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell-legacy-bugs/+bug/1734095/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
