The following is a systray applet icon that appeared in my Unity session after I upgraded to Ubuntu 16.10. Its menu is tall, narrow and empty. What is it?
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That means the icon for that application could not be loaded. We can't tell what the application is as it's a generic icon telling you something went wrong!– Zanna ♦Oct 14, 2016 at 6:26
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did you have a Dropbox indicator by any chance ? i know Dropbox has icon issues– Sergiy KolodyazhnyyOct 14, 2016 at 6:28
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I have the same problem with radiotray. but the menu is still good– solsTiCeOct 18, 2016 at 9:45
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3 Answers
The "forbidden" (AKA prohibited) icon indicates that one of the panel indicator's (for example, Klipper) can't be loaded or is no longer functioning, possibly because it has been discontinued in Ubuntu 16.10.
If it hasn't been discontinued in Ubuntu 16.10, showing your system's process list by running ps -ef | grep indicator- will provide more information about which process is causing it. This will show the panel indicators that have the string indicator- in their names as the panel indicators from the default Ubuntu repositories do. To show all of the process list run ps -ef.
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I just get the following from that command:
restart: Unknown instance:. This following worked:systemctl --user restart unity-panel-service. However, the icon is still showing.– Wren T.Oct 14, 2016 at 6:48 -
There is one fatal flaw: if indicator binary doesn't have the word indicator in it, it may not work ( which hopefully is a rare case and most of programmers name their binary properly) Oct 14, 2016 at 6:55
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2This actually was Klipper. I had it checked in my Startup Applications.– Wren T.Oct 14, 2016 at 7:07
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When you upgraded to Ubuntu 16.10, you couldn't upgrade Klipper, because Klipper has been discontinued in 16.10.– karelOct 14, 2016 at 7:13
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In my case it was Klipper (clipboard manager from Plasma).
You can try to kill them:
# killall klipper
I disabled startup of this applet removing it in "Startup Application Preferences" and unknown icon disappeared.
If this is a laptop, it seems the indicator you are missing would be indicator-power. I have the same problem on a Lenovo Thinkpad yoga 370. So far that only seems to show when the battery is 100% charged and connected to AC. Don't know how this could be fixed tho.
