Lenovo ThinkPad Edge E420s (English) User Guide - Page 127

Menu item, Selection, Comments, Disabled, ThinkPad LCD, Switchable Graphics, Display

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Table 3. Config menu items (continued) Menu item Submenu item Fn Key Lock Display 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 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. Chapter 8. Advanced configuration 109

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Table 3. Config menu items (continued)
Menu item
Submenu item
Selection
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.
Fn Key Lock
•
Disabled
•
Enabled
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.
Boot Display Device
•
ThinkPad LCD
•
Analog (VGA)
•
Digital on ThinkPad
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.
Graphics Device
•
Integrated Graphics
•
Switchable Graphics
Integrated Graphics will
achieve longer battery life,
and Discrete Graphics
enhances performance.
Display
OS Detection for
Switchable Graphics
•
Disabled
•
Enabled
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.
Chapter 8
.
Advanced configuration
109