Yes, clean install for part of softwares will cause this bug. See Also, https://bugs.launchpad.net/ubuntu/+source/gnome- panel/+bug/1530555
And the reason is simple, the menu from gnome-panel will display a new item if a new "desktop" file is created in /usr/share/application/ folder, but the menu will check whether "TryExec=" points to a non-exist file or an invalid link, if so, the menu still hide this item even after the target that "TryExec=" points to become valid. One of the following solutions can fix this bug, 1. force dpkg to postpone installing "[DEB]/usr/share/applications/*" files in the deb package, in order to make the file that "TryExec=" points to become valid first. 2. add a trigger after every dpkg installation finish to force updating the whole menus. 3. force gnome-panel to ignore "TryExec=" field to let menu item always show. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-panel in Ubuntu. https://bugs.launchpad.net/bugs/1518775 Title: gnome-panel cannot show newly installed software icons Status in gnome-panel package in Ubuntu: Confirmed Bug description: 1) First => sudo apt-get install gnome-session-flashback 2) Then => re-login user with "Gnome Flashback (Metacity)" session 3) Next => install a software that does not exist in gnome-panel menu list previously, such as "sudo apt-get install mousepad" However, after installion of mousepad, its icons doesn't show in gnome-panel menu list. I have to: 4) killall gnome-panel 5) gnome-panel & Then, the mousepad icon can be shown in gnome-panel menu list. This might be caused by forgetting to update icon menu list from gnome-panel ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: gnome-panel 1:3.18.1-1ubuntu3 ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6 Uname: Linux 4.2.0-19-generic x86_64 ApportVersion: 2.19.2-0ubuntu6 Architecture: amd64 CurrentDesktop: GNOME-Flashback:Unity Date: Mon Nov 23 06:13:43 2015 GsettingsChanges: JournalErrors: Error: command ['journalctl', '-b', '--priority', 'warning'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system. Users in the 'systemd-journal' group can see all messages. Pass -q to turn off this notice. No journal files were opened due to insufficient permissions. SourcePackage: gnome-panel UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-panel/+bug/1518775/+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
