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HDMI/DVI Question

Ashiok
By Ashiok
in Graphics Cards
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I got an HDMI cable and it is working while plugged into my graphics card. However, my monitor must have DVI to work so I am currently using both. Also, my DVI doesn't work for some reason in the graphics card, my screen just goes black after windows loads in so I have it in my motherboard. Is this draining performance or is it fine? Thank you.

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I'm assuming you have two displays connected to the graphics card.

 

When you say "goes black", does the display go to sleep or does it stay on? If it stays on, the display was probably assigned as the secondary and the login screen is on the other display. Windows doesn't display anything on the secondary screen on the login page.

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No, I meant that I have on monitor with both an HDMI and a DVI cable. The HDMI plugs into the graphics card and the DVI plugs into the motherboard. When I plug the DVI into the graphics card the Windows logo comes up, loads, and then my screen goes black. However, with my DVI in the motherboard and HDMI cable in the graphics card everything is fine. I'm just wondering if I should have my DVI cable in my graphics card. I need both HDMI and DVI b/c someone told me to have HDMI but my monitor also needs DVI. Does that make sense?

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1 minute ago, Ashiok said:

No, I meant that I have on monitor with both an HDMI and a DVI cable. The HDMI plugs into the graphics card and the DVI plugs into the motherboard. When I plug the DVI into the graphics card the Windows logo comes up, loads, and then my screen goes black. However, with my DVI in the motherboard and HDMI cable in the graphics card everything is fine. I'm just wondering if I should have my DVI cable in my graphics card. I need both HDMI and DVI b/c someone told me to have HDMI but my monitor also needs DVI. Does that make sense?

You shouldn't need both cables plugged into one monitor if that's what's going on, you should just use the HDMI.

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3 minutes ago, Ashiok said:

I tried that. However, once I turned on my pc with only the HDMI cable it says that I need to have the dvi cable in too. 

I need a picture of this, because I know of no system demanding that one display output be used or it won't boot or something.

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1 minute ago, Ashiok said:

I tried that. However, once I turned on my pc with only the HDMI cable it says that I need to have the dvi cable in too. 

Like a message pops up on the screen? You have your monitor on the HDMI input when booting? What monitor do you have?
 

If I had to guess what's happening, it's using the DVI port to boot and display the BIOS, but then like M.Yurizaki said the HDMI is being set as the main display in windows and on the login screen all other displays are blacked out but the main display.

I think you just need to change the input on your monitor.

Main PC: Corsair 900D | ProArt Z690-Creator | Intel 13900K | RTX 4090 | Trident Z5 (2x32GB) | 1TB 980 Pro, 2TB Sabrent Rocket 4+, 2TB 980 Pro, 1TB Sabrent Rocket | HX1200i

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Media / Render PC: Corsair 900D (shared) | ASRock X399M | AMD 2970WX | RTX 4070 TI | Trident Z (2x16GB) | 2TB Samsung 970 Evo | 2xElgato HD60 Pro | HX750
Full Room Watercooling: EK X3 400 | EK-XTOP Revo Dual D5 | 4xHardware Labs 560GTX | 16xSilentWings 4 Pro  | EVGA 450 B3

Peripherals: Logitech G502 X |  Wooting 60HE | Xbox Elite Controller Series 2 | Logitech G502 Wireless | Logitech MX Keys Mechanical

Displays: Asus XG35VQ | 2xLG 24UD58-B | LG 65UH6030 | Asus VH242H | BenQ GW2480 | HP 22CWA | Kenowa CNC-1080P | Asus VC39H

Audio Interfaces : RME Fireface UFX+, Scarlett 18i20, RME HDSPe RayDAT, RME HDSPe MADI FX, RME ADI-648, RME ADI-192 DD

Audio Playback: 2xYamaha HS5 & Yamaha HS8s | Sennheiser HD820, Sennheiser IE 500 Pro, Ultimate Ears RR CIEMs

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3 minutes ago, TheAgnda said:

it's using the DVI port to boot and display the BIOS, but then like M.Yurizaki said the HDMI is being set as the main display in windows

Just to clarify, you can have one monitor plugged into the same system twice and it will be recognized as two separate monitors.

Main PC: Corsair 900D | ProArt Z690-Creator | Intel 13900K | RTX 4090 | Trident Z5 (2x32GB) | 1TB 980 Pro, 2TB Sabrent Rocket 4+, 2TB 980 Pro, 1TB Sabrent Rocket | HX1200i

Capture PC: Meshify XL | Designare TRX40 | AMD 3960X | 2xRTX 4070 TI | Trident Z (4x16GB) | 2TB 970 Evo Plus, 1TB 970 Evo Plus | Dual HDMI 4K Plus LT, 2xElgato 4K 60 Pro, HX850

Media / Render PC: Corsair 900D (shared) | ASRock X399M | AMD 2970WX | RTX 4070 TI | Trident Z (2x16GB) | 2TB Samsung 970 Evo | 2xElgato HD60 Pro | HX750
Full Room Watercooling: EK X3 400 | EK-XTOP Revo Dual D5 | 4xHardware Labs 560GTX | 16xSilentWings 4 Pro  | EVGA 450 B3

Peripherals: Logitech G502 X |  Wooting 60HE | Xbox Elite Controller Series 2 | Logitech G502 Wireless | Logitech MX Keys Mechanical

Displays: Asus XG35VQ | 2xLG 24UD58-B | LG 65UH6030 | Asus VH242H | BenQ GW2480 | HP 22CWA | Kenowa CNC-1080P | Asus VC39H

Audio Interfaces : RME Fireface UFX+, Scarlett 18i20, RME HDSPe RayDAT, RME HDSPe MADI FX, RME ADI-648, RME ADI-192 DD

Audio Playback: 2xYamaha HS5 & Yamaha HS8s | Sennheiser HD820, Sennheiser IE 500 Pro, Ultimate Ears RR CIEMs

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