Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I tried the combination CTRL+ALT+L or L but it is not working. But if I select the menu item LockScreen from setting drop down it works.

Any thoughts on how to fix keyboard shortcut?

Thanks.

share|improve this question
    
you will find a fast workaround here "go to System Settings > Keyboard and on the "Shortcuts" tab, under "System", change the "Lock screen" keyboard shortcut from CTRL + ALT + L to something else, then under "Custom Shortcuts", click the "+" button to add a new custom shortcut, under "Name" enter "Xscreensaver" and under "Command" enter "/usr/bin/xscreensaver-command", then click "Apply"." –  Marius Balaban Apr 28 '12 at 7:29
    
Thanks @Marius Balaban. That helped.I cleared the shortcut and re-entered the CTRL+ALT+L combination and it worked. I tried to put it as solution but can't do that due to less reputation. –  CppLearner Apr 28 '12 at 7:39
    
In my instance it was because my notebook keyboard implements a numeric keypad if the Num Lock is on. So my [Ctrl]-[ALt]-L was really [Ctrl]-[Alt]-3. Once I hit the Num Lock again to turn it off [Ctrl]-[Alt]-L worked again. –  Stephen Gornick May 10 '13 at 0:35

2 Answers 2

up vote 11 down vote accepted

In the top panel right corner choose System Settings to select Keyboard in the Hardware section, or type "key.." in the Dash then select Keyboard:

enter image description here

In the Shortcuts tab all key combinations are listed. You may change them there or add your own custom shortcut. To have the poweroff shortcut back add it with a custom shortcut for the following command:

gnome-session-quit --power-off

Note: to be able to add a custom shortcut we may have to clear an already existing shortcut if this uses the same keys.

The GNOME lock screen feature depends on the gnome-screensaver Install gnome-screensaver. In case you have removed it or did not install it in a custom environment you will have to install it first.

share|improve this answer
4  
I changed the combination to Super+L but it is not working. Any thoughts? –  CppLearner Apr 28 '12 at 8:09
1  
thanks for your edit. I changed the key to CTRL+ALT+G and that worked. But changing it to Super+L is still not working. On Windows I am used to Windows+L hence same would be helpful on Ubuntu. Thanks –  CppLearner Apr 28 '12 at 8:20

This seems to have been improved in 12.10.

If you go into System Settings > Keyboard > Shortcuts, System,

then left-click once on 'Lock screen',

the Ctrl+Alt+L on the right changes to 'New accelerator...[something]', at which point you can hold Super [Windows key] and press L.

The keyboard shortcut will then show as 'Super+L' and works immediately.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.