The Lock screen, new to Windows 8, is a fancy feature which allows you to display an image while your PC/tablet is locked and displays other useful information.
However, when the PC is locked, the normal display off timeout value has no effect on it and you cannot specify the timeout value after which the screen will turn off while you are on the Lock screen. Turns out, there is a hidden registry setting for this and enabling it even turns it on in the Power Options control panel GUI - the same window where you specify other power related timeouts. Let me show you how.
- Open your Registry Editor and go to the following key:
Tip: If you are not familiar with Registry Editor, see our Registry Editor fundamentals and do not forget to read how to jump to the desired registry key with one click.
- On the right side, you will see an "Attributes" value. It equals to 1 by default.
You need to change it to 2:
That's it! After doing this, you will see a new item in the Advanced Settings of the power plan inside the Power Options Control Panel.
Before the tweak, it looked like this:
And after applying the tweak you will get an additional item in the "Display" section:
The "Console lock display off timeout" is the one that's added. By default, it is set to 1 minute, and now you can set it to what you want. Note that the value must be less than the "Turn Display after…" value. Otherwise you will not notice the changes.
This tweak is applicable to Windows 8 and Windows 8.1 (aka "Windows Blue").
I have created ready-to-use registry files for you. Download link is below.
Many thanks to my friend D.Bulanov for sharing this tip.