Ubuntu – Why top panel icons disapear on Gnome after installing Unity

18.04gnome-shelliconsunity

Why are some icons missing from the top panel on Gnome after installing Unity on Ubuntu 18.04?

I have the extension Topicons plus, but just the icons which do not depend on this extension have disappeared like Skype, Telegram, Thunderbird with Firetray.

When I type Alt+F2, then r, the icons re-appear but I need to do this after every restart.

Thanks in advance.

Best Answer

It also seems to happen after Ubuntu upgrade. Gnome is conflicting with unity stuff in this case. See this answer and other below.

So, if you want gnome instead of unity as in my case, I've just removed the obsolete package:

sudo apt remove indicator-application

Then reboot the system or do this for immediate effect

Related Solutions

Ubuntu – Missing panel icons at top right

After fiddling with a whole lot of things and several reboots, the missing icons have reappeared. I think I've figured out what happened. I had forgotten that I did the following (not sure if it's all relevant):

sudo add-apt-repository ppa:jconti/gnome3
sudo apt-get update
sudo apt-get install indicator-applet-complete
sudo reboot

I guess that solves my problem, except it would still be nice to be able to access the "Add to Panel" menu. As I said above, the special right-clicks still don't work.

Ubuntu – Unity Panel has wrong icons

I solved this by removing the oxygen-gtk theme.

sudo rm -rf /usr/share/themes/oxygen-gtk/

See Restore GTK integration after removing KDE

Best Answer

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Ubuntu – Missing panel icons at top right

Ubuntu – Unity Panel has wrong icons

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