HDMI gaming pc problem

I would like to run my gaming pc with a hdmi cable. i currently use a vga but when i chnage to the hdmi the screen wont work. no windows loading screen comes up. help please?
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  1. What monitor and what gfx card? And what motherboard?
    Some newer cards and monitors require that the HDMI cable be version 1.4 or newer.
  2. clutchc said:
    What monitor and what gfx card? And what motherboard?
    Some newer cards and monitors require that the HDMI cable be version 1.4 or newer.

    it is supposed to be a AMD radeon 7770 hd 1gb but the ports on the back do not match the pictures online which i am looking into as we speak. motherboard is an asus m5a78l-m/usb 3
  3. A few monitors have a quirk that require you to start in VGA, then use the buttons to select HDMI input. Of course there will be no VGA display after doing that. Shut down and re-connect via HDMI. Try that first. Check the markings on the side of your HDMI cable to be sure it is at least ver 1.4.

    If you are unsure of the GPU in your system, run GPU-Z in Windows to determine the exact model. Or run CPU-Z and click on the graphics tab.
    GPU-Z: http://www.techpowerup.com/gpuz/
    CPU-Z: http://www.cpuid.com/softwares/cpu-z.html
  4. clutchc said:
    A few monitors have a quirk that require you to start in VGA, then use the buttons to select HDMI input. Of course there will be no VGA display after doing that. Shut down and re-connect via HDMI. Try that first. Check the markings on the side of your HDMI cable to be sure it is at least ver 1.4.

    If you are unsure of the GPU in your system, run GPU-Z in Windows to determine the exact model. Or run CPU-Z and click on the graphics tab.
    GPU-Z: http://www.techpowerup.com/gpuz/
    CPU-Z: http://www.cpuid.com/softwares/cpu-z.html

    That's all a bit complicated for my young brain unfortunately. Its just a regular hdmi cable i plugged in. Ideally i'd like o get 2 monitors and think it would be better to use hdmi cables but vga is just as good right? still need to check the graphics card though which worries me slightly.
  5. clutchc said:
    A few monitors have a quirk that require you to start in VGA, then use the buttons to select HDMI input. Of course there will be no VGA display after doing that. Shut down and re-connect via HDMI. Try that first. Check the markings on the side of your HDMI cable to be sure it is at least ver 1.4.

    If you are unsure of the GPU in your system, run GPU-Z in Windows to determine the exact model. Or run CPU-Z and click on the graphics tab.
    GPU-Z: http://www.techpowerup.com/gpuz/
    CPU-Z: http://www.cpuid.com/softwares/cpu-z.html
    Also when i run gpu-z it tells me that the name of my card is the amd radeon 7700 series. on my specs list it tells me my gpu is an AMD Radeon HD 7770 1gb
  6. Actually, analog VGA is not as good as a digital output. With Analog, it goes thru at least 2 stages of conversion. The graphics processor produces a digital signal, it is converted to analog for transmission over the cable to the VGA input on the monitor. Then inside the monitor, it is converted back to a digital signal so it can be displayed. Every time it is converted, it loses some fidelity. Best to hook both monitors up as digital. Less headaches sometimes too.

    Some newer cards will not work with a HDMI cable that is of the older version.
  7. clutchc said:
    Actually, analog VGA is not as good as a digital output. With Analog, it goes thru at least 2 stages of conversion. The graphics processor produces a digital signal, it is converted to analog for transmission over the cable to the VGA input on the monitor. Then inside the monitor, it is converted back to a digital signal so it can be displayed. Every time it is converted, it loses some fidelity. Best to hook both monitors up as digital. Less headaches sometimes too.

    Some newer cards will not work with a HDMI cable that is of the older version.

    Okay, Thank you, I may message you back when i sort out this graphics card confusion as i do not think the company that built my pc fitted the right one. Thanks again
  8. If you download and run that little program I linked you to (CPU-Z), it will tell you what GPU you actually have.
  9. clutchc said:
    If you download and run that little program I linked you to (CPU-Z), it will tell you what GPU you actually have.


    i've now taken the side off of my pc and found my graphics card is actually the xfx r7770, could i run 2 monitors using vga with it?
  10. Yes, Windows allows that.
  11. clutchc said:
    Yes, Windows allows that.

    i know that, but if i try to use my hdmi cable it does not work, i dont want to go and buy two monitors to find i can not use them
    i am currently using vga, but for the second monitor i would like to use hdmi
  12. You never told me what the make/model of the monitors were. Or the make/model of the HD 7770. Do both monitors have DVI inputs? HDMI inputs? VGA inputs?
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