I will describe the steps I did before the issue appeared:

  1. Running Unity, I wanted to have different wallpapers on each workspace. I followed these steps.
  2. After restart, no top panel appeared, no window borders etc. I had this issue before, after using Compiz (I hope I will not be tempted again to use Compiz).
  3. I switched on tty1, and I installed lubuntu-desktop.
  4. I added a new user <olduser>clone, on Lubuntu.
  5. I logged in as <olduser>clone with Unity, which was working fine.
  6. Being logged as <olduser>clone I managed to add different wallpapers on each workscape, without problems.
  7. I didn't like how they were working, and I decided to uninstall Compiz.
  8. I tried to uninstall lubuntu-desktop and its dependencies:

    sudo apt-get remove --purge lubuntu* sudo apt-get remove --purge abiword*

After restart nothing appears, just black screen. However, I had access to tty1. I installed back lubuntu-desktop.

Now Unity works fine, but combined with Lubuntu desktop.

I migrated all the files from the old user to its clone and renamed the <olduser>clone into <olduser>.

How can I remove lubuntu-desktop and its dependencies, without destroying Unity?

  • Maybe by uninstalling lubuntu-desktop, followed by re-installing Unity? Just what I would try... But I also have a somehow similar problem with Cinnamon on one user account.
    – Byte Commander
    Jan 20, 2015 at 9:32
  • @ByteCommander I already tried that sudo apt-get install --reinstall ubuntu-destkop, but it didn't solve the problem... Jan 20, 2015 at 9:36

1 Answer 1


So you've sudo apt-get remove --purge lubuntu* and apt-get install --reinstall ubuntu-destkop already, but some of the CCSM you did before are probably still lingering around.

So I would:

  1. Take a system back-up (Read this Q&a)
  2. Take a file backup (if your /home is on a separate partition)
  3. Remember that Ctrl+Alt+F7 brings you back here!

    Go to TTY1 by pressing Ctrl+Alt+F1.

  4. sudo apt-get purge ubuntu-desktop
  5. sudo apt-get purge unity
  6. sudo apt-get install ubuntu-desktop
  7. sudo apt-get install unity
  8. Ctrl+Alt+F7 to get back to the GUI login

Why? The purges will remove any lingering configuration settings and the installs will then reset everything to scratch

Warning This is for a plain Vanilla Ubuntu with Unity. If you're running Kubuntu or Gubuntu, all bets are off! ;-)

  • 1
    I fixed it by reinstalling the system... Jan 23, 2015 at 7:00
  • Have you made a system backup already??? Yesterday I accidentally deleted some printer stuff and instead of looking where the problem was, I just restored my system backup from 10 days ago, applied the updates, added some stuff back into bash.bashrc and 7 minutes later, I was back up-and-running!
    – Fabby
    Jan 23, 2015 at 9:42

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.