lock-screen
I am unable to lock my desktop in Ubuntu 11.10 with
Ctrl + Alt + L
If I press the above key sequence the screen turns black and the little lock icon appears at the top right of my screen.
However, if I press a key or move my mouse, the black screen disappears and my desktop appears again.
Does anyone know why?
In 12.04 the option to turn off the screen lock does not remove the option to lock the screen from the power/cog button.
All done!
Open System Settings, click Brightness & Lock and select a value for the screen turn off option, Turn screen off when inactive for:
Choose your time delay in the drop-down menu.
Check this question.
Best Answer
If you create a password in "user accounts" then Ctrl + Alt + L will lock with a password. If you don't want to have to type in a password for log on then simply enable automatic log on. Hope this helps. :)