Chapter 5. Troubleshooting

My screen goes blank while

Your screen saver or power management may be

the computer is on.

enabled. Do one of the following to exit from the

 

screen saver or to resume from sleep or hibernation

 

mode:

 

- Touch the touchpad.

 

- Press any key on the keyboard.

 

- Press the power button.

 

- Press Fn+F2 to confirm whether the LCD screen

 

has been turned off.

Problems on changing graphics processing unit (GPU)

When I right-click on the desktop, the Configure

Switchable Graphics option is not displayed on the pop up menu. Or when I slide and release the GPU switch on the front side of the computer, the Switcha- ble Graphics dialog box is not displayed.

The screen remains blank when I try to switch the GPU.

Check the graphics device setting in BIOS setup utility. In BIOS setup utility, move the cursor to Configuration, make sure Switchable Graphics option is set active under Graphics Device.

Check the operating system you are using. Switchable Graphics technology is currently available only on Windows 7.

Make sure your computer is not running an exclusive mode Direct3D or OpenGL application. If your computer is running either of the above applications, quit the application before you switch the GPU.

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Lenovo Y460P, Y560P manual Problems on changing graphics processing unit GPU, Computer is on