Lenovo ThinkPad Edge E420s User Manual page 127

Table 3. Config menu items (continued)
Menu item
Display
Submenu item
Fn Key Lock
Boot Display Device
Graphics Device
OS Detection for
Switchable Graphics
Selection
• Disabled
• Enabled
• ThinkPad LCD
• Analog (VGA)
• Digital on ThinkPad
• Integrated Graphics
• Switchable Graphics
• Disabled
• Enabled
Chapter 8
Comments
functions illustrated on
each key. To get standard
F1-F12 functions, you need
to press the Fn key and
F1-F12 key combination.
If you select "Legacy,"
pressing F1-F12 key
initiates the standard
F1-F12 functions. To initiate
special functions printed on
each key, you need to press
the Fn key and F1-F12 key
combination.
If you select "Enabled,"
you can press the Fn key
to keep it in a pressed
condition, then press the
desired function key. The
action is equivalent to
pressing the required
key and the Fn key
simultaneously. When
you pressed the Fn key
twice, the state is locked
until you press the Fn key
again.
Select the display device
that is to be active at boot
time. This selection is
effective for boot time,
password prompt, and
ThinkPad Setup.
"Digital on Thinkpad"
is DisplayPort on your
computer.
Integrated Graphics will
achieve longer battery life,
and Discrete 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.
.
Advanced configuration
109