16.04lock-screenSecurity
I am unable to lock my screen either using CTRL-ALT-L or waiting for 5 minutes (inactive time option). After pressing the combination of keys (or waiting the 5 minutes), the screen turns off but it does not ask for any password to return to the desktop. Can anyone help me please? Thank you!
Here are my settings:
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. :)
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
I solved my problem. There was an option in the Unity Tweak Tool that was preventing any screen lock. Desktop lock checkbox must be disabled. Thanks to https://askubuntu.com/a/91719/219893