Windows 10: Why wont my laptop detect my external monitor?

I repasted my cpu and gpu on my laptop due to overheating issues, I made sure everything was put back together correctly and nothing was unplugged besides the battery. Now my laptop won't recognize my external monitor but the gpu is working just fine. Could this be something reinstalling windows 11 can fix? I have done this before with no issues so I'm not sure what is going on.

:)

 

Laptop not detecting external monitor

I'm using a laptop with an RTX 380.

I used an external monitor via Hdmi and it worked fine,

until I connected a USB webcam.

I was receiving a video via the camera app for about 5 seconds. After that, both monitors started flickering black and than the external monitor just wasn't detected anymore.

I Updated windows and reinstalled the Geforce driver multiple times without success.

The laptop is still not detecting any monitors via the Hdmi-port.

 

Laptop can't detect external monitor

Sorry for the late response, but if I do not have another PC, is the only option to wait to get the new updates and within those new updates, my laptop will be able to detect my external monitor.

It might sound rude and if so I'm sorry because you're the expert here and I barely know anything about computers but my external monitor worked perfectly until I rested my laptop. Do you think it has something to do with that because if the version 1803
made my laptop unable to detect my external monitor, shouldn't my monitor not work from the beginning, before I rested my laptop but now it did. Only after the reset made it so my laptop was unable to detect my external monitor.

So do you think the reset maybe deleted some files so that my laptop no longer is able to detect my monitor?

 

Laptop won't detect external monitor

Hi,

For us to get a better understanding of the issue and provide a resolution suitable to your concern, kindly provide the following information:

• Before you click the the detect button on Display settings, do you have multiple display option on
  extended?
• Can you lower down the resolution option and check if your external monitor will be detected by the laptop?

Tip: To change the projection settings, you can press and hold
Windows key button + P.

Looking forward to your reply.