Windows 10: HDMI port from the graphics card to my monitor isn't connecting

Pretty much exactly what the title says. I have 2 monitors id like to connect to my PC. One HDMI port from my Graphics card isn't working pretty much. Iv'e tried updating the driver software but I have the newest one installed. The monitor keeps saying 'No signal' and I know for a fact the HDMI cord and monitor are fine because it worked on my last PC

:)

 

my hdmi on my graphics card is the only hdmi port that works. I need two for a monitor to set up rift

my hdmi on my graphics card is the only hdmi port that works. I need two for a monitor to set up rift. There are two other hdmi ports available. Please help.

 

PC has 2 HDMI ports, only 1 works.

My PC has 2 HDMI ports on the back, i think one of them is 'connected' to the graphics card as it also has a DP and DVI ports. When i connect my monitor to the HDMI port which is from the graphics card (GeForce GTX 970), everything works fine and my pc displays
to the monitor. However, i would like to use a second monitor (for gaming) but when i connect either my tv or monitor to the other HDMI port which ISN'T connected to the graphics card, nothing displays and it doesn't work. I don't know if its because the port
is disabled or if it only outputs from the graphics card, but i have contacted the company that custom built my PC, and they said that my setup could support 3 monitors/displays.

Please help me to find out how to setup a second monitor?

Thanks in advance,

Bertie

 

Enabling graphic card without monitor

Vijay,

I was able to get my screen working again by plugging the monitor into the HDMI port on the Nvidia graphic card. This was with a HDMI plug at both ends of the cord. I have to select the specific HDMI port on the monitor that has the Nvidia graphics card
plugged into that port, with the monitor's input buttons. The Nvidia card on my Dell XPS 8900 has a HDMI port and a VGA port and a DVI port. Guess Nvidia built it compatible for all ages of monitors.

The VGA port on the Nvidia graphic card didn't work with an HDMI plug adapter at the monitor end of the cord. Don't know why. This newer monitor doesn't have a VGA port. I hadn't tried using the DVI port on the Nvidia graphic card, since the HDMI port got
things working already. Oddly, the Intel HD graphic card doesn't turn the screen on anymore even though I enabled it in Device Manager, but since the Nvidia works fine I don't need the integrated graphic card at the moment and will figure that out later. The
moral of the story is never disable your Intel HD graphic card. It will leave you in the dark!

thanks again