Hi,
I bought the J1800N-D2H SoC motherboard, which has a HDMI and VGA port onboard. I am unable to use the HDMI port. When booting the system without any OS installed yet, the HDMI port gives no video output whatsoever.
I read that there were problems with the F2 BIOS version, so I performed the upgrade to F4, which changed a couple of settings as well (CSM legacy settings). After the BIOS upgrade, the HDMI port still gives no output whatsoever upon booting (BIOS, UEFI, booting any medium).
Using the VGA output, I installed 2 different OS to try to get the HDMI to work:
1) Ubuntu 14.04 with the latest Intel drivers: HDMI doesn't work
2) Windows 8.1 64bit with the latest drivers from your website: doesn't work either
The current OS is Windows 8.1 and Windows doesn't even see a screen on the HDMI port when both HDMI and VGA are connected. My HDMI television and cable are working fine, I have connected 3 other devices (a Raspberry Pi, a PC with a discrete graphics card and an Xstreamer device) using the HDMI and both display video right from the start.
DOA, or still a BIOS issue? I have been checking all integrated VGA options, but none seem to affect the HDMI port