Reference Guide

BIOS Settings Name Description Supported
Operating
System(s)
Keyboard Backlight Color Enable
Displays or enables the supported colors on the keyboard
backlight for the rugged systems. Press Fn+C to switch among
the enabled colors.
Possible values are:
• 0 — None
• 1 — White
• 2 — Red
• 3 — Green
• 4 — Blue
• 5 — Customcolor1
• 6 — Customcolor2
NOTE:
• You can enable multiple colors at a time.
• If ‘0 — None’ is selected, keyboard backlight color
switching by pressing Fn+C will not be possible.
The value ‘0 — None’ cannot be combined with any
other color.
Microsoft Windows
Keyboard Click
Enables or disables the keyboard to ‘click’ each time a key is
pressed.
Possible values are:
• Disable
• Enable
Microsoft Windows,
Linux
Keyboard Backlight Timeout on AC
Configures the timeout value for the keyboard backlight when
an AC adapter is plugged into the system.
Possible values are:
• 5 — Keyboard backlight stays on for 5 seconds.
• 10 — Keyboard backlight stays on for 10 seconds.
• 15 — Keyboard backlight stays on for 15 seconds.
• 30 — Keyboard backlight stays on for 30 seconds.
• 65 — Keyboard backlight stays on for 1 minute.
• 69 — Keyboard backlight stays on for 5 minutes.
• 79 — Keyboard backlight stays on for 15 minutes.
• 191 — keyboard backlight always stays on.
Microsoft Windows,
Linux
Keyboard Backlight Timeout on Battery
Configures the timeout value for the keyboard backlight when
the system is running only on battery power.
Possible values are:
• 5 — Keyboard backlight stays on for 5 seconds.
• 10 — Keyboard backlight stays on for 10 seconds.
• 15 — Keyboard backlight stays on for 15 seconds.
• 30 — Keyboard backlight stays on for 30 seconds.
• 65 — Keyboard backlight stays on for 1 minute.
• 69 — Keyboard backlight stays on for 5 minutes.
• 79 — Keyboard backlight stays on for 15 minutes.
• 191 — keyboard backlight always stays on.
Microsoft Windows,
Linux
Keyboard Backlight with AC
Enables or disables the keyboard backlight when the system is
running on AC power if an AC power adapter is plugged in.
Possible values are:
Microsoft Windows,
Linux
264 BIOS settings supported in Dell Command | Monitor 10.2.1