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"no system tray detected on this system." Appears starting Gnome and Cinnamon in Oneiric 11.10; starting with Gnome Classic and Unity no problem at all. How to solve?

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Did you install hplip? –  Rinzwind Feb 6 '12 at 11:30
    
@Rinzwind: That question deserves some explanation. To my eyes, it seems like it could possibly be meant for another question. :) –  Jo-Erlend Schinstad Feb 6 '12 at 12:06
    
Yes, I installed hplip; the problem is not the printer. Some explanation: The full pop-up starting Oneiric-desktop-choice Gnome", or "Cinnamon" is: "No system tray detected on this system. Unable to start, exiting ." –  tonwillems.pc Feb 6 '12 at 13:12
    
@ Jo-Erlend Schinstad not if you knew what the problem is ;) –  Rinzwind Feb 6 '12 at 13:14
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3 Answers

In your start up programs there is a line regarding starting hplip. Change ...

sh -c "sleep 15; exec hp-systray"

to

sh -c "sleep 45; exec hp-systray"

and the problem is gone.

hplip is expecting a system tray and that got removed (and was changed into notification area). All this does is postpone startup of hp-systray so if your system is slow to respond this notice might come back and bite you again.

Found it here on Bugzilla (has a fix released on 2011.11.25 (...)). Besides the bug I found the following sources: Linuxquestions, Ubuntuforums

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Thank ouy Rinzwind for your answer. BUT: where can I find that line in my Start-up programs "sh -c" etc.? I tried Grub, .hplip and the systray-itself,start-up programs. –  tonwillems.pc Feb 8 '12 at 14:12
    
Not a problem @tonwillems.pc :) if the answer is what you needed do not forget to accept it ;) –  Rinzwind Feb 8 '12 at 14:13
    
BUT: where can I find that line in my Start-up programs "sh -c" etc.? I tried Grub, .hplip and the systray-itself,start-up programs. –  tonwillems.pc Feb 8 '12 at 16:00
    
see freecode's comment: askubuntu.com/questions/74031/… –  Rinzwind Feb 8 '12 at 16:07
    
Thanks a lot for last link given. Yesterday in my update was a patch for the "no system tray"-issue: I quote:PROPOSED UPDATE..... –  tonwillems.pc Feb 14 '12 at 15:03
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sudo apt-get install hplip hplip-gui

will install a newer release of hplip that might fix the issue.

See

for more discussion of the issue

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I had same issue regarding "no system tray found" until I uninstalled Wine (was running the Star Trek Armada 2 demo hehe).

Then problem disappeared.

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This does not really answer the question. If you have a different question, you can ask it by clicking Ask Question. You can also add a bounty to draw more attention to this question once you have enough reputation. –  Alvar Nov 27 '13 at 22:57
    
Hi there :) I was responding to ""no system tray detected on this system." Appears starting Gnome and Cinnamon in Oneiric 11.10; starting with Gnome Classic and Unity no problem at all. How to solve?" and thought I had a solution....as it turns out, reboots later, the problem returned so mine wasn't a solution at all :( –  Scott Nov 28 '13 at 15:02
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