Lenovo ThinkPad E580, User Manual, Page: 64 / 142

– Charge in Battery Mode
Values: Disabled , Enabled
Description: This option is supported only when Always On USB is enabled. Select Enabled to charge
devices through the Always On USB connector even when the computer is in hibernation mode, or
powered off and in battery operation.
Keyboard/Mouse
• TrackPoint
Values: Disabled, Enabled
Description: Enable or disable the built-in TrackPoint pointing device.
Note: If you want to use an external mouse, select Disabled .
• Trackpad
Values: Disabled, Enabled
Description: Enable or disable the built-in trackpad.
Note: If you want to use an external mouse, select Disabled .
• Fn and Ctrl Key swap
Values: Disabled , Enabled
Description: If you select Enabled , the Fn key works as the Ctrl key and the Ctrl key works as the Fn key.
• 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.
• 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.
Display
• Boot Display Device
Values: ThinkPad LCD , USB Type-C, HDMI, Display on dock
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.
USB Type-C corresponds to the USB Type-C
connector on your computer. HDMI corresponds to the HDMI connector on your computer. Display on
dock corresponds to the video connectors (such as the DVI or VGA connectors) on a docking station.
Boot screen is cloned to all displays on dock.
• 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
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E580 User Guide