These instructions are for Ubuntu 12.10 running the Unity interface. They may be the same for other version combinations, but no guarantee is made.

Sometimes you have to leave your computer but don’t want to leave your session open for someone else to start using.

One option is to log out, the other is to lock your session. Logging out is rather drastic and requires you to save all your work. Locking the screen allows all your work to remain as is until you unlock the screen.

Keyboard Shortcut

1) Press Ctrl + Alt + L to lock your screen.

Your screen should change to something like the following (your choice of desktop background, username, etc, will affect the specific appearance):

Using the Mouse

1) Click on the System icon in the top right corner of the screen:

2) Select Lock Screen from the drop down menu.

The post Ubuntu 12.10 – How to Lock Your Screen / Computer appeared first on Complete, Concrete, Concise.

This tutorial is for Ubuntu 12.04 running the Unity interface. It may be the same for other version combinations but no guarantee is made.

Sometimes, after upgrading to Ubuntu 12.04, the Lock Screen functionality stops working.

The likely problem is that gnome-screensaver has been uninstalled.

Using the Command Line

1) Open a terminal using Ctrl+Alt+L (detailed instructions for opening a terminal can be found here).

2) Enter the following command:

sudo apt-get install gnome-screensaver

Using the Ubuntu Software Center

1) Start the Ubuntu Software Center.

2) Enter gnome-screensaver into the search field:

3) Click on the search result that comes up (it will turn the selection orange).

4) Click on Install.

This solution was originally found here.

The post Ubuntu 12.04 – Lock Screen Does not Work appeared first on Complete, Concrete, Concise.

These instructions are for Ubuntu 12.04 running the Unity interface. They may be the same for other version combinations, but no guarantee is made.

Sometimes you have to leave your computer but don’t want to leave your session open for someone else to start using.

One option is to log out, the other is to lock your session. Logging out is rather drastic and requires you to save all your work. Locking the screen allows all your work to remain as is until you unlock the screen.

Keyboard Shortcut

1) Press Ctrl + Alt + L to lock your screen.

Your screen should change to something like the following (your choice of desktop background, username, etc, will affect the specific appearance):

Using the Mouse

1) Click on the System icon in the top right corner of the screen:

2) Select Lock Screen from the drop down menu.

The post Ubuntu 12.04 – How to Lock Your Screen / Computer appeared first on Complete, Concrete, Concise.

These instructions are for Ubuntu 11.10 running the Unity interface. They may be the same for other version combinations, but no guarantee is made.

Sometimes you have to leave your computer but don’t want to leave your session open for someone else to start using.

One option is to log out, the other is to lock your session. Logging out is rather drastic and requires you to save all your work. Locking the screen allows all your work to remain as is until your return.

Keyboard Shortcut

1) Press Ctrl+Alt+L to lock your screen.

Your screen should change to something like the following (your choice of desktop background, username, etc, will affect the specific appearance):

Using the Mouse

2) Select Lock Screen from the System icon in the top right corner of the screen:

The post Ubuntu 11.10 – How to Lock Your Screen / Computer appeared first on Complete, Concrete, Concise.