All of a sudden I can't have more then one monitor connected windows11

[Noxious_Silver]

Attached is a video. I changed nothing today. I was just using my computer. 

 

Monitors

Viotek gn32db running 60 hrtz

Viotek gn32db running 60 hrtz

Samsung odeysey g7 running 240hrtz hdr

 

PC

Intell 7 13700k

Rtx 4070ti

32 dominator plat ran running 6200

Boot nvme 990pro

 

I'm using red tightly braided juaux display port cables. 

 

The reason the vioteks are running 60 it they tend to show weird screen lines above 120 because of a flaw in manufacturing that they refused to pay for. That's not what is causing this. 

 

The way windows 11 detects additional screens and disconnects and reconnects them all together is when this is happening. 

I notice it takes a couple tries when switching on full screen or hdr applications. But this is the worse IV seen. This time I reinstalled drivers and it fixed it. But I don't think that was the cause. Occasionally screens will just show black and I have to reboot them. This occured on my last PC as well. 

 

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Original post and edit line. 

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https://pcpartpicker.com/user/JonathanDawdy/saved/M4ntWZ

Replacing cables did not solve the problem. 

 

If I attempt to reconnect more than one monitor they will all start to connect and disconnect repeatidly until I restart and the problem goes away. 

This includes when I game opens in exclusive full screen since the monitor resolution resets during that process. 

 

Monday Im going to check all gpu connections and reinstall windows. this pc is bearly over a year old and im at my wits end trying to fix it. maybe il try ddu first.

 

 

 

[manikyath]

5 minutes ago, Noxious_Silver said:

This occured on my last PC as well. 

have you considered that it might be a cable or monitor issue? if the connection is just marginally witin spec, it might occasionally be marginally outside spec and lose connection when trying to handshake a new resolution.

[Noxious_Silver]

3 minutes ago, manikyath said:

have you considered that it might be a cable or monitor issue? if the connection is just marginally witin spec, it might occasionally be marginally outside spec and lose connection when trying to handshake a new resolution.

I have messed and twisted the cables since it stopped and it did not happen again. And it's currently running fine. If it was a short I would be able to recreate the issue. I am considering replacing the cables just because of age. But they are high quality so I'm just spit balling. 

[KidKid]

2 hours ago, Noxious_Silver said:

Attached is a video. I changed nothing today. I was just using my computer. 

 

Monitors

Viotek gn32db running 60 hrtz

Viotek gn32db running 60 hrtz

Samsung odeysey g7 running 240hrtz hdr

 

PC

Intell 7 13700k

Rtx 4070ti

32 dominator plat ran running 6200

Boot nvme 990pro

 

I'm using red tightly braided juaux display port cables. 

 

The reason the vioteks are running 60 it they tend to show weird screen lines above 120 because of a flaw in manufacturing that they refused to pay for. That's not what is causing this. 

 

The way windows 11 detects additional screens and disconnects and reconnects them all together is when this is happening. 

I notice it takes a couple tries when switching on full screen or hdr applications. But this is the worse IV seen. This time I reinstalled drivers and it fixed it. But I don't think that was the cause. Occasionally screens will just show black and I have to reboot them. This occured on my last PC as well. 

 

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Original post and edit line. 

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Are you sure it isn't just faulty/loose cables when it shows black? Try to unplug and replug the black screen monitor's cable and see if the display works again.

[OddOod]

2 hours ago, Noxious_Silver said:

I have messed and twisted the cables since it stopped and it did not happen again. And it's currently running fine. If it was a short I would be able to recreate the issue. I am considering replacing the cables just because of age. But they are high quality so I'm just spit balling. 

Cables die. They just do. It's weird and I cannot explain why they do, but it happens. I hate it. 
I have learned to just buy no-name inexpensive cables and have spares on hand. They seem to last as long as the expensive ones 

[Noxious_Silver]

8 hours ago, KidKid said:

Are you sure it isn't just faulty/loose cables when it shows black? Try to unplug and replug the black screen monitor's cable and see if the display works again.

 

7 hours ago, OddOod said:

Cables die. They just do. It's weird and I cannot explain why they do, but it happens. I hate it. 
I have learned to just buy no-name inexpensive cables and have spares on hand. They seem to last as long as the expensive ones 

Correct I have verified the cables are not lose. When the issues was occuring the worst I verified every display functioned as a single monitor. When all 3 were connected it kept crashing. 

 

I purchased 3 ugreen cables today that are overrated. We will see if the problems ceases to happen. 

[Noxious_Silver]

Cables didn't fix it. When I tried to plug in more then my Samsung monitor the all monitors repeatidly connect and disconnect. I can hear windows playing the sound over and over again. 

[OddOod]

On 6/13/2025 at 8:54 PM, Noxious_Silver said:

Cables didn't fix it. When I tried to plug in more then my Samsung monitor the all monitors repeatidly connect and disconnect. I can hear windows playing the sound over and over again. 

Did reinstalling windows fix it?