INT 10 - Chips & Technologies Extended BIOS - SWITCH DISPLAY DEVICE AX = 5F51h BL = new active display 00h CRT 01h flat panel (LCD) 02h both simultaneously BH = 01h to allow reprogramming the DAC Return: AL = 5Fh if function supported AH = status 00h unsuccessful 01h successful SeeAlso: AX=5F50h,AX=5F53h