Xubuntu blank screen after wakeup

Xubuntu 14.04. After wake up from sleep, it asks to enter password. I entered the passw. and screen goes black. On Ubuntu 14.04 waking up was just ok. Lenovo E330 laptop with intel HD graphics.
add: If lid was closed, not clicked sleep


This is all great and fine. But for a noob or anyone who is not accustomed to CLI it doesn't make the problem any less bothersome. Here is the solution that worked for me.

  • Completely remove Light Locker using Synaptic Package Manager
  • Install Gnome Screensaver from the Ubuntu Software Center
  • Restart the computer

Strangely, one day when I fresh installed Xubuntu, that problem stopped. Still, if this happen, try using the following tip:

  1. Get into the command line using Ctrl+Alt+F1.

  2. Put your credentials user/password.

  3. Write the following:

    sudo service lightdm restart
    

So it will take you back to the login screen.

Hope that helps! (It's not a fix for this problem, though. I had to get used to click the Suspend button instead of closing the lid.)


Easier way: Switch to different session using Ctrl+Alt+F1 (or F2-F6) and then back to your session using Ctrl+Alt+F7