I sometimes have problems if I close or minimize windows in Ubuntu 15.04.

If I want to close the window or minimize it, the system gets stuck and I can no longer click on anything. Only with the Super key or Ctrl+Super+ I can minimize the window properly.

What can I do to fix this problem?

  • try to update your system from terminal: sudo apt-get update then sudo apt-get upgrade – kenn May 8 '15 at 17:23
  • i did this few times but it did not help. – Baltaci Ismail May 10 '15 at 8:35
  • check out which window manager and session you use: xprop -id $(xprop -root -notype | awk '$1=="_NET_SUPPORTING_WM_CHECK:"{print $5}') -notype -f _NET_WM_NAME 8t and your session echo $XDG_CURRENT_DESKTOP – kenn May 10 '15 at 13:16
  • Maybe it has something to do with dropbox. I will test this. stopping dropbox. – Baltaci Ismail May 11 '15 at 22:49

I tried a lot of solutions, none of them worked for me. This is my personal solution that solved mine, hope this helps.

  1. sudo apt-get install unity-tweak-tool

  2. Launch the tool and in the Unity section click Switcher then uncheck Switch between minimized windows checkbox.

Note: No need to disable any OpenGL or Animation option either form compiz or unity.

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