Public bug reported: The "Update Software" Icon showed that there were updates available (small triangle on left edge). Left clicking on icon didn't appear to do anything (no window appeared). Right clicking displayed a menu of options. Based on a previous encounter with this problem I entered
"wmctrl -R "Software Updater" which opened the expected window in the center of the screen. lsb_release -rd Description: Ubuntu 18.04 LTS Release: 18.04 apt-cache policy update-manager update-manager: Installed: 1:18.04.11.1 Candidate: 1:18.04.11.1 Version table: *** 1:18.04.11.1 500 500 http://us.archive.ubuntu.com/ubuntu bionic-proposed/main amd64 Packages 500 http://us.archive.ubuntu.com/ubuntu bionic-proposed/main i386 Packages 100 /var/lib/dpkg/status 1:18.04.11 500 500 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages 500 http://us.archive.ubuntu.com/ubuntu bionic/main i386 Packages I expected a dialog listing the updates available. Nothing happened. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: update-manager 1:18.04.11.1 ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 Uname: Linux 4.15.0-23-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CurrentDesktop: Unity:Unity7:ubuntu Date: Fri Jun 8 12:05:54 2018 EcryptfsInUse: Yes GsettingsChanges: b'com.ubuntu.update-manager' b'show-details' b'true' b'com.ubuntu.update-manager' b'window-height' b'374' b'com.ubuntu.update-manager' b'first-run' b'false' b'com.ubuntu.update-manager' b'window-width' b'645' b'com.ubuntu.update-manager' b'launch-time' b'int64 1528455252' HWEreplacements: HWEunsupported: linux-image-extra-3.16.0-77-generic linux-image-3.16.0-77-generic InstallationDate: Installed on 2015-05-31 (1103 days ago) InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) PackageArchitecture: all SourcePackage: update-manager UpgradeStatus: Upgraded to bionic on 2018-05-10 (28 days ago) ** Affects: update-manager (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic package-from-proposed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1775897 Title: "Update Software" not opening To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1775897/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs