Texas Instruments TravelMate 4000M User Reference Manual page 158

Command Description
CON4 Enables the foreground and background
contrast adjustments
Sets the monitor type to VGA
MON0
Sets monitor type to 8514-Compatible
MON1
MON2 Sets monitor type to Super VGA
Sets monitor type to Extended Super VGA
MON3
Sets monitor type to Multi-Frequency
MON4
MON5 Sets monitor type to Extended
Multi-Frequency
Sets monitor type to Super Multi-Frequency
MON6
Sets monitor type to Extended Super
MON7
Multi-Freq.
Turns backlight on
BLON
Turns backlight off
BLOFF
25 Switches the computer to 25-line, 80-column
VGA 80
text mode. This is the default configuration. A
warm boot (CTRL-ALT-DEL) restores this
mode. (Not available on color models.)
50 Switches the computer to enhanced
VGA 80
80-column text mode. This results in 50 lines
in VGA mode, or 43 lines in EGA mode. (Not
available on color models.)
VGA Utility
VGA External Monitor Utilities 8-11