Lenovo ThinkPad Edge E420 1141 User Manual page 136

Table 4. Config menu items (continued)
Menu item
Keyboard/Mouse
Display
Power
118
User Guide
Submenu item
Fn and Ctrl Key swap
Fn Key Lock
Change to "F1–F12 keys"
Boot Display Device
Graphics Device
OS Detection for
Switchable Graphics
®
Intel SpeedStep
technology (Intel
SpeedStep mounted
models only)
Selection
• Disabled
• Enabled
• Disabled
• Enabled
• Default
• Legacy
• ThinkPad LCD
• Analog (VGA)
• Digital on ThinkPad
• Integrated Graphics
• Switchable Graphics
• Disabled
• Enabled
• Disabled
• Enabled
Mode for AC
• Maximum Performance
• Battery Optimized
Mode for Battery
• Maximum Performance
• Battery Optimized
Comments
If you select "Enabled", the
Fn key works as the Ctrl
key, and the Ctrl key works
as the Fn key.
Note: Even when
"Enabled" is selected,
you need to press the Fn
key to return the computer
from sleep mode to normal
operation.
Enable or disable the Fn
key lock.
If you select "Default",
pressing F1–F12 initiates
special functions illustrated
on each key. If you
select "Legacy", you can
use F1–F12 as standard
function keys.
Select the display device
that is to be active at boot
time. This selection is
effective for boot time,
password prompt, and
ThinkPad Setup.
Integrated Graphics
provides longer battery life,
and Switchable Graphics
enhances performance.
If you select "Enabled," the
system UEFI automatically
switches the graphics
device setting to Switchable
Graphics mode if the
operating system supports
this feature, and to
Integrated Graphics mode if
the operating system does
not support this feature.
Select the mode of Intel
SpeedStep technology in
the user UEFI at runtime.