Lenovo ThinkPad Yoga 460, User Manual

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• Problem : My screen keeps blanking when I do not want it to.
Solution : If your computer is preinstalled with the Windows 7 operating system, you can disable any
system timers, such as the LCD turn-off timer or the blank timer by doing the following:
1. Start Power Manager.
2. Click the Power plan tab, and then select Maximum Performance from the predefined power plans.
If your computer is preinstalled with the Windows 10 operating system, do the following:
1. Go to Control Panel, and ensure that you view Control Panel by Category.
2. Click Hardware and Sound ➙ Power Options ➙ High performance .
3. Show the additional plans, then choose High performance .
• Problem : When I turn on the computer, nothing is displayed on the screen and the computer does not
beep while starting up.
Note: If you are not sure whether you heard any beeps, turn off the computer by pressing and holding the
power button for four seconds or more. Turn it on and listen again.
Solution : Ensure that:
– The battery is installed correctly.
– The ac power adapter is connected to the computer and the power cord is plugged into a working
electrical outlet.
– The computer is turned on. (Turn the power button on again for confirmation.)
If a power-on password is set:
– Press any key to display the prompt for the power-on password. If the brightness level of the screen is
low, increase it by pressing the brightness-up key .
– Type the correct password and press Enter.
If these items are correctly set, and the screen remains blank, have the computer serviced.
• Problem : When I turn on the computer, only a white pointer is displayed on a blank screen.
Solution : If you have modified a partition on your hard disk drive or hybrid drive by using partition
software, information about that partition, or the master boot record might have been destroyed.
1. Turn off the computer, and then turn it on again.
2. If you still see only the pointer on the screen, do the following:
– If you have used the partition software, examine the partition on the hard disk drive or hybrid drive
by using the software, and recover the partition if required.
– Use the recovery solutions to restore the system.
If the problem persists, have the computer serviced.
External monitor problems
• Problem : The external monitor is blank.
Solution : To bring up the image, press the display mode-switching key and select the desired
monitor. If the problem persists, do the following:
1. Connect the external monitor to another computer to ensure that it works.
2. Reconnect the external monitor to your computer.
3. Refer to the manual shipped with the external monitor to check the resolutions and refresh rates that
are supported.
– If the external monitor supports the same resolution as the computer display or a higher resolution,
view output on the external monitor or on both the external monitor and the computer display.
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ThinkPad P40 Yoga, ThinkPad S3, ThinkPad Yoga 14, and ThinkPad Yoga 460 User Guide