Current state of DisplayPort Output

Hi,
is DisplayPort output broken or not implemented on Intel HD and AMD? I tried two different PCs, one with an integrated Intel HD 4000 Graphics Card, another one with an AMD RX470. Results:

  • Intel HD 4000: DisplayPort: No Output, VGA: Output
  • AMD RX470: DisplayPort: No Output, DVI: Output

Used x64 build with HREV 52989.
Egon