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Broken DisplayPort w/ Integrated Graphics, but HDMI Works

Mackerel Ice Cream

This is a real head scratcher. I think, my DisplayPort is dead on arrival. I am testing the HDMI, DisplayPort, and the thunderbolt 3 port. The HDMI and USB C displays an image even at the same time, but the Displayport won't display at all.

 

-Tried connecting different monitors to the DisplayPort

-Tried HDMI to DisplayPort cable, HDMI cable to DisplayPort adapter, tested the DisplayPort adapter, and tried DVI adapter to HDMI cable to DisplayPort adapter because why not, right?

-Tried connecting only to the DisplayPort, tried connecting to the HDMI & DisplayPort only, and tried connecting only with the DisplayPort & the Thunderbolt 3 port.

None of these combinations worked for the DisplayPort, but the HDMI & Thunderbolt 3 worked.

 

The DisplayPort port is dead right? Or am I missing something with the iGPU?

 

10900k

Windows 10 2004

Intel Graphic Drivers 27.20.100.8280

Intel z490 Chipset Maximum amount of monitors

Gigabyte z490 Vision D

 

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That's a DisplayPort IN connector.

It's so that you can plug a DisplayPort signal from a discrete GPU for then it to be routed through Thunderbolt.

Look at page 21 & 22 in the manual.

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On 9/26/2020 at 3:16 AM, Zagna said:

That's a DisplayPort IN connector.

It's so that you can plug a DisplayPort signal from a discrete GPU for then it to be routed through Thunderbolt.

Look at page 21 & 22 in the manual.

I misunderstood the manual when I was read it. I have never came across an in port for passthrough like this before. I guess there are monitors that only have thunderbolt ports on them? Why not just use a DP to Thunderbolt cable or adapter? I understand it's there so you don't have to use the onboard video, but I'm still not seeing the reason behind it though.

                                     "Linux is only free if your time has no value." ~Jamie Zawinski

"Peaches" CPU 10900k // Heatsink Liquid Freezer II 280 // GPU EVGA 2080 Super XC // MB z490 Vision D // RAM Corsair Vengeance 80GB 3600 // PSU Corsair RMx 850 // OS 2x Intel 660p 2TB NVMe // Monitor Half 8k // VR Vive Index // Mouse Naga 2020 // Keyboard Ducky Shine 7 // Fedora plus i3wm

"HTPC" CPU 3900x // Heatsink D15 // GPU GTX 980 // MB Tuf x570 Plus // RAM Corsair Vengeance 16GB 3600 // PSU Corsair RMx 850 // OS Kingston NV1 500GB NVMe // Monitor 4k // VR OG HTC Vive // Fedora plus i3wm / Windows 10

"Dell Powerbottom N690 1U Blade, Totally Not a Shitty Desktop" CPU 2700k // Heatsink Stock // GPU EVGA GTX 970 // MB Yes // RAM Vengeance 16GB DDR3 // Monitor xrdp // VR Google Cardboard // OS Kingston 480GB // Not Porn 4TB Spinner // Fedora
"SalmonLeaves" RPi4 Model B 4GB DNS/NAS // RPi 2 Model B 1GB

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3 minutes ago, lowao said:

 I guess there are monitors that only have thunderbolt ports on them?

Yes, or people want a single cable between the PC and desk to carry display plus everything USB they might want on their desk with a TB3 dock.

 

3 minutes ago, lowao said:

Why not just use a DP to Thunderbolt cable or adapter?

There aren't any. 

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