I have a PC (Gigabyte GA-Z77n motherboard with an i3 3225 cpu) and having trouble getting the HDMI ports to work correctly. When just the HDMI port is connected directly to a TV, in this case a Sony Bravia, there is no signal. If I also connect a cable from the DVI port on the PC to the VGA input on the TV the HDMI port then goes active and I get a signal on the TV.
I've verified that it's not the TV or cable by using another PC with the same HDMI cable and it works fine just by connecting one HDMI cable. I can't find anything in the bios controlling the ports and nothing in the Intel Graphics Manager.
I've tried -
- Uninstalled the Intel graphics driver to the generic Microsoft vga driver
- Reinstalled with the latest version of the HD4000 driver.
- Re-powering & resetting the TV
Can anyone think of anything I've missed or any ideas?
Thanks!