Lenovo IdeaPad U460 Lenovo IdeaPad U460 UserGuide V1.0 - Page 60

Troubleshooting, Problems on changing graphics processing unit GPU, Configuration - bios

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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 click the icon of Graphics mode on the taskbar, the Switchable Graphics dialog box is not displayed. Or when I press the GPU switchable button on the top of the keyboard, the computer does not respond. • 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. The screen remains blank when I try to switch the GPU. • 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. 46

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46
Chapter 5. Troubleshooting
My screen goes blank while
the computer is on.
•
Your screen saver or power management may be
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 click the icon of
Graphics mode
on the
taskbar, the Switchable
Graphics dialog box is not
displayed. Or when I press
the GPU switchable button
on the top of the keyboard,
the computer does not
respond.
•
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.
The screen remains blank
when I try to switch the
GPU.
•
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.