Int 10 Fn 1EFE  - Video - Flat-panel - Function Support Flag               [V]

   AX = 1EFEh
   ES:DI -> DWORD buffer for bitmap of supported functions
       (set to all zeros before calling)

Return: ES:DI buffer updated with mask of supported functions
Index: installation check;flat-panel display support

See Also: AX=1E00h,AX=1E06h