User Manual
Note: Only the Fn key can wake up the system from sleep mode.
• Fn Sticky key
Values: Disabled, Enabled
Description: If you select Enabled, you can press the Fn key (instead of press and hold) to keep it in a
pressed condition. Then press the function key you want. The action is equivalent to pressing the function
key simultaneously with the Fn key. When you press the Fn key twice, the Fn key will be locked in the
press-and-hold mode until you press the Fn key again.
• F1–F12 as Primary Function
Values: Disabled, Enabled
Description: If you select Enabled, pressing the function keys directly inputs F1–F12. If you select
Disabled, pressing the function keys directly initiates the special function printed as an icon on each key.
To temporarily switch the above two functions, press Fn+Esc. The FnLock indicator is on when FnLock is
enabled.
Display
• Boot Display Device
Values: ThinkPad LCD, External Display
Description: Select the display device that you want to activate at boot time. This selection is effective for
boot time, password prompt, and ThinkPad Setup. You can attach an external display to the USB-C
connector or HDMI connector on your computer. If multiple displays are attached, the first recognized one
will be activated at boot time.
• Shared Display Priority
Values: HDMI, USB Type-C
Description: Select the priority between shared display outputs. The HDMI connector and the rear USB
Type-C connector share a single display output and the two connectors cannot be used simultaneously
for the external display. This option chooses which connector is prioritized for the external display.
• Total Graphics Memory
Values: 256 MB, 512 MB
Description: Allocate the total memory which Intel internal graphics shares.
Note: If you select 512 MB, the maximum usable memory might be reduced on the 32-bit operating
system.
• Boot Time Extension
Values: Disabled, 1 second, 2 seconds, 3 seconds, 5 seconds, 10 seconds
Description: This option defines the amount of time to extend the boot process, in seconds. The system
cannot detect some external monitors during boot because they need a few seconds to be ready. Try this
option if the monitor being used does not display the boot screen.
Power
• Intel SpeedStep
®
technology
Values: Disabled, Enabled
Description: Select the mode of Intel SpeedStep technology at runtime. If you select Disabled, the highest
speed, and runtime is not supported.
– Mode for AC
Values: Maximum Performance, Battery Optimized
Description: Maximum Performance: Always highest speed
Chapter 6. Advanced configuration 65