Timeout
There are two timeout settings.
- Desktop Properties
- Power Properties
Desktop Properties
See: Backlight
Power Properties
You can find the property dialog box in the Control Panel -> Power. Since image 3.1 the display driver is power manageable. This means, in some system states, the display is switched off.
Registry
The registry information can be found under the key mentioned below in registry file:
[HKLM\System\CurrentControlSet\Control\Power\Timeouts\]