up vote 7 down vote favorite
3

I am running Ubuntu 12.04 on an IBM ThnkPad T42. I just installed Gnome and Cinnamon but I am still using Unity. The only problem is that in dash when I search for any application they don't appear. I don't see recent applications either. I fixed it by running unity --reset but the next time I turned on my computer it was broken again

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up vote 14 down vote accepted

Reinstall unity-lens-applications and unity-lens-files logged out and back in and it should work.

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Working - Affirmative! – SGhosh Sep 21 '13 at 5:52
    
It was working. But it is not working after the reinstall. – Dinuka Thilanga Nov 15 '13 at 9:20
    
Worked for me under 14.04 LTS... Thanks! – Gregory Opera Apr 3 '15 at 8:27
    
It worked on Ubuntu 16.04 as well. – Sergei Morozov Sep 6 '17 at 4:15
up vote 4 down vote

This worked for me:

  1. Switch to tty1 (Ctrl+Alt+F1) and login as myself.
  2. rm -rf ~/.compiz (in order to recursively delete session logs... there might also be ~/.compiz-1 and so on, delete them all!)
  3. sudo service lightdm restart
  4. login using the standard greeter again.

https://bugs.launchpad.net/ubuntu/+source/unity/+bug/943083/comments/14

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Still working on 15.10 – SuperSluether Feb 14 '16 at 15:12
up vote 1 down vote

The Unity Dash shows applications which have .desktop shortcuts in /usr/share/applications/ or ~/.local/share/applications/. So ensure that the application has a .desktop shortcut in at least one of these two folders.

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I have .desktop files in those locations but no applications show up until i run <code> unity -- reset </code> – wil Dec 5 '12 at 0:14
    
could reinstalling unity also help – wil Dec 5 '12 at 16:45
    
I tried putting <code> unity -- reset </code> into my start up but that didn't work because when unity resets the desktop environment break – wil Dec 5 '12 at 17:56
up vote 1 down vote

Enter Ubuntu software center, search for unity > "More Info" and if you scroll down, there are "Optional addons". Check unity lens files and applications then apply.

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up vote 1 down vote

This worked for me:

Go to /usr/share/applications/ or ~/.local/share/applications/ and open in gedit the mpv.desktop file (if it is there, if not, probably try to create one).

If there is a line

NoDisplay=true

change it to 

NoDisplay=false
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up vote -2 down vote

This command will restore the configuration of dash:

sudo dpkg-reconfigure -A

It should be working.

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1  
Can you please edit and improve your answer. What exactly does the given command do and does it improve/solve the OP's issue! – v2r Jul 4 '14 at 16:30
1  
this for unity dash for not showing installed application, that command will restore the configuration of dash to be to able see again all application installed. look at this my previews problem imgur.com/scnOTpv – xsoultribex Jul 5 '14 at 1:41
    
after try using that command, this it now imgur.com/scnOTpv – xsoultribex Jul 5 '14 at 1:44
    
-1 This command reconfigures ALL packages, not just Unity/Dash. – wjandrea Apr 27 '17 at 15:01

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