Video Screen Options; Secure Boot Screen Options - Dell Latitude 7390 2-in-1 Owner's Manual

Option Description
Keyboard Backlight The Keyboard Backlight Timeout dims out with the Battery option. The main keyboard illumination feature is not
Timeout on Battery affected. Keyboard Illumination will continue to support the various illumination levels. This field has an effect when
the backlight is enabled. The options are:
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Touchscreen It controls whether the screen is enabled or disabled. This option is enabled by default.
Unobtrusive Mode This option, when enabled, pressing Fn+F7 turns off all light and sound emissions in the system. To resume normal
operation, press Fn+F7 again. This option is disabled by default.
Miscellaneous Allows you to enable or disable the following devices:
Devices
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Video screen options

Option Description
LCD Brightness Allows you to set the display brightness depending up on the power source—On Battery and On AC. The LCD
brightness is independent for battery and AC adapter. It can be set using the slider.
NOTE: The video setting is visible only when a video card is installed into the system.

Secure Boot screen options

Option Description
Secure Boot Enable This option enables or disables the Secure Boot Enable
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Default setting: disabled.
Expert Key This option enables or disables the Expert Key management
management
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5 sec
10 sec—enabled by default
15 sec
30 sec
1 min
5 min
15 min
Never
Enable Camera—enabled by default
Enable Secure Digital (SD) Card—enabled by default
Secure Digital (SD) Card Boot—disabled by default
Secure Digital (SD) Card Read-Only-Mode—disabled by default
Disabled - by default
Enabled
PK—enabled by default
KEK
db
dbx
System setup 51