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up vote 7 down vote favorite

"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

2 Answers

up vote 3 down vote

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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up vote 1 down vote 
sudo apt-get install hplip hplip-gui

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

Other solutions can be found at https://answers.launchpad.net/hplip/+question/207699

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