various programs which when I minimize do not show up in the system tray panel. Also the network applet had disappeared since I upgraded from 17.10 to 18.04. I managed to make it show again by:
editing /etc/xdg/autostart/nm-applet.desktop and changed
Exec=nm-applet
to
Exec=dbus-launch nm-applet
Any idea how I can get system tray icons to show again when I click on minimize?
My nm-applet.desktop file looks like this:
[Desktop Entry]
Name=Network
Comment=Manage your network connections
Icon=nm-device-wireless
Exec=dbus-launch nm-applet
Terminal=false
Type=Application
NoDisplay=true
NotShowIn=KDE;GNOME;
X-GNOME-Bugzilla-Bugzilla=GNOME
X-GNOME-Bugzilla-Product=NetworkManager
X-GNOME-Bugzilla-Component=nm-applet
X-GNOME-UsesNotifications=true
X-Ubuntu-Gettext-Domain=nm-applet
You need to add to panel āindicator applet completeā as notification area does not contain in 18.04 any more those icons. You can look on Mate 18.04 change log for this specific change.
Anyone upgrading from Ubuntu MATE 16.04 or 17.10 may need to use MATE Tweak to reset the panel layout to one of the bundled layouts post upgrade. Migrating panel layouts, particularly those without Indicator support, is hit and miss. Mostly miss.
I have similar issue - after upgrade from 17.10 there are no more icons of Qt-based apps in āNotification areaā applet, such as VLC, Telegram (Qt5) or Goldendict (Qt4) and others. Reset panel didnāt help. Maybe anyone knows is there a way to get back these icons?
Edit this file : /usr/share/indicator-application/upstart/xdg/autostart/indicator-application.desktop
Add MATE in the following option such as :
OnlyShowIn=Unity;MATE
Reboot.
Missing icons should be restored.
In āStartup Applicationsā (or āControl Centerā > āStartup Applicationsā), ensure thereās no Ayatana application enabled to start on boot.
Make sure to undo other modifications you attempted for fixing this problem before now.
Thereās another trick on post #21 on the same link.
This is simply not true. I tore that indicator crap out of my panel because it in my opinion is ugly, unconfigurable and ignores system theme. I replaced it with traditional Notification Area applet, and it works great just as it always did.