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HDMI on new machine not working

Got a new pc last week. I've just tried connecting it to my projector using a hdmi cable and its not working, projector just says no signal. I know there is nothing wrong with the cable as it works with my laptop. Its hdmi version 1.4 (http://www.amazon.co.uk/dp/B005OS4NHE/ref=pe_385721_37038051_TE_dp_1)

The graphics card is a GeForce GTX 750 Ti. If anyone has any ideas I'd be delighted to try them
7 answers Last reply Best Answer
More about hdmi machine working
  1. Are you using the projector via HDMI as the only display or trying to use the projector as a second display while Windows is also showing up on your main monitor? If the latter than you may need to configure multiple monitors using the NVIDA control panel.
  2. Does the HDMI port (on your new computer) work when you connect it to another device (like maybe a TV)?
  3. notherdude said:
    Are you using the projector via HDMI as the only display or trying to use the projector as a second display while Windows is also showing up on your main monitor? If the latter than you may need to configure multiple monitors using the NVIDA control panel.


    Right now I'd be happy with either. If I'm trying to use it as the only display it should just work by connecting both devices right?

    If I'm trying to use it as a second display how do I set this up in the NVidia control panel. In there I can see the tasks on the left and there is a Setup Multiple Displays, but the only device which is available to be selected there is my acer monitor
  4. KevinAr18 said:
    Does the HDMI port (on your new computer) work when you connect it to another device (like maybe a TV)?


    Edit: I just realised that my monitor had a hdmi port. I've been using a DVI cable to connect it. When I use hdmi it doesn't work!

    Old: That's a good question but I'm not in a position to try that out. The only other device in the house with a HDMI port is my laptop
  5. Best answer
    brendle said:
    notherdude said:
    Are you using the projector via HDMI as the only display or trying to use the projector as a second display while Windows is also showing up on your main monitor? If the latter than you may need to configure multiple monitors using the NVIDA control panel.


    Right now I'd be happy with either. If I'm trying to use it as the only display it should just work by connecting both devices right?

    If I'm trying to use it as a second display how do I set this up in the NVidia control panel. In there I can see the tasks on the left and there is a Setup Multiple Displays, but the only device which is available to be selected there is my acer monitor


    Yes, to the first question, it should just work if it is the only thing hooked up. If the NVIDIA panel only sees the Acer then nothing is getting detected on HDMI, you can hit the button to force it to re-detect but good chance that won't do anything - HDMI is a bit flaky, sometimes it takes several tries hooking and unhooking and turning the display on and off and if one HDMI cable isn't working then try another.
  6. So both your monitor and your projector don't work on HDMI on the new video card? If so, maybe you have a bad HDMI port on the video card. Just RMA it from the place you bought it from and have them send you a new one.
  7. BTW, another thing to try... use a different HDMI cable just to make sure the HDMI cable is not bad, instead.
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