I've just installed the AMD Radeon R9 390 Series graphics card and I plugged my HDMI Kogan TV into it and it works fine.
I've plugging my Hanns-G monitor with a VGA-toDVI adaptor and it is not detected by the PC.
Does it support this type of connection?
The motherboard works fine with both, I'd be surprised if the graphics card doesn't.
Motherboard: ASRock FM2A88X Extreme4+
Graphics: 8192MB ATI AMD Radeon R9 390 Series
HDMI: KOGAN TV (1920x1080@60Hz)
VGA: Hanns G Monitor