Int 10 Fn 1E07  - Video - Flat-panel - Brightness Setting                  [V]

   AX = 1E07h
   BH = function
       bit 7: =1 set brightness control, =0 query brightness
       bit 6: use standard brightness
       bits 5-0: reserved (0)
   ---if BH bits 7,6=10---
   BL = brightness (00h = minimum, FFh = maximum)

Return: AL = 1Eh if function supported
       BH = results
       bit 7: query/set (copied from input)
       bit 6: standard/custom (copied from input)
       bits 5-2: reserved (0)
       bit 1: software brightness control is supported
       bit 0: set operation was succesful (always clear on get)
       BL = brightness (00h = minimum, FFh = maximum)

Note:  this function operates independently of AX=1E05h

See Also: AX=1E00h,AX=1E05h,AX=1E08h