Display Port To Display Will Not Work On Linux On An Old Motherboard

[PlatinumSun]

See I know with windows you can download drivers for display port right.

But my conundrum is I don't even know if my motherboard even supports display port.

I have a GTX1070FE and I can get HDMI signal fine and the drivers are up to date. But display ports don't work. Would my MOBO even be the cause? I mean I have the GPU into the monitor the motherboard has no HDMI or Display port even on the thing.

MOBO is a gigabyte GA990-XA-UD3 Rev 1.1

Monitor is Asus ROG-Strix-XG27AQ

https://rog.asus.com/ca-en/monitors/27-to-31-5-inches/rog-strix-xg27aq-model/spec/

[Omega]

Displayport does not need any special drivers nor hardware support from your mainboard, it should just work.

Plug your screen in to your GPU and not the motherboard.

If your are not getting any display output over DP then something else is wrong, either the cable is bad or the screen is having issues with picking up the signal, something in this direction.

[_I_]

unplug the hdmi
bios may only post on one display, depends on the gpu or mobo

[Cathulhu]

There is no driver necessary. If the videocard works, that's all it is required.
Anyway, as Omega said, multiple reasons can be the problem.

Like the Displayport port being broken, the cable defective or in case of an active cable, connected the wrong way around as those are usually one way cables.
Could also be the monitor that has a defective port, or a wrong setting.

[PlatinumSun]

Omega の投稿を引用：

Displayport does not need any special drivers nor hardware support from your mainboard, it should just work.

Plug your screen in to your GPU and not the motherboard.

If your are not getting any display output over DP then something else is wrong, either the cable is bad or the screen is having issues with picking up the signal, something in this direction.

I did plug it into the monitor into GPU.

I have 3 display ports I have little reason to believe all 3 are broken. I have not actually had the opportunity to test the monitor display port. It would be a shame if it was broken. I did get the monitor second hand it only had 2 months of use and was a great deal (one 10th its normal price) previous user was moving on short notice.

[PlatinumSun]

_I_ の投稿を引用：

unplug the hdmi
bios may only post on one display, depends on the gpu or mobo

I tested after booting into the desktop I unplugged the HDMI and then pluged in the DP but no luck.

[_I_]

try another cable, and make sure the display is on the correct input

[PlatinumSun]

_I_ の投稿を引用：

try another cable, and make sure the display is on the correct input

I did that, and I know its not he cable, both the HDMI and DP cables are 8k rated new as can be from Asus. Came with the monitor, I have tested both in the past.

[PlatinumSun]

I did notice one thing, DisplayPort Ver. in monitor settings (via the settings panel built into the monitor) is greyed out.

[Cathulhu]

That could indicate that either the cable is defective or unsuitable, or the port on the monitor is defective.

The version would only be shown if there is an active connection and the handshake between monitor and the signal output device (videocard) would have happened.

Try another cable first and make sure it's connected the right way if it's a one-directional cable.

[GOD RAYS ON ULTRA™]

https://www.nvidia.com/en-us/drivers/nv-uefi-update-x64/

This updates the GTX 10 series display id for display port.

I needed to do this for the GTX 1070 and rtx 3050. The 3050 has a different install package. The one I linked is for 10 series.

The reason I had to do this was so I could view my bios via display port. Previously that wasn't possible. I had to wait for windows to load to get a screen up. HDMI worked fine.

[PlatinumSun]

Cathulhu の投稿を引用：

That could indicate that either the cable is defective or unsuitable, or the port on the monitor is defective.

The version would only be shown if there is an active connection and the handshake between monitor and the signal output device (videocard) would have happened.

Try another cable first and make sure it's connected the right way if it's a one-directional cable.

I tried both directions. Is there a way to tell if its 1 directional by the way?

[PlatinumSun]

WOKEISM (banned 14 times) の投稿を引用：

https://www.nvidia.com/en-us/drivers/nv-uefi-update-x64/

This updates the GTX 10 series display id for display port.

I needed to do this for the GTX 1070 and rtx 3050. The 3050 has a different install package. The one I linked is for 10 series.

The reason I had to do this was so I could view my bios via display port. Previously that wasn't possible. I had to wait for windows to load to get a screen up. HDMI worked fine.

Ran this, it said it updated but it didn't seem to work on Windows or Linux.

[PlatinumSun]

IT WORKS! IT WAS 1 WAY!

[PlatinumSun]

♥♥♥♥ I was thinking it was 1 way as it was an 8k one. So its an optical cable.

[PlatinumSun]

Schrodinger.