Windows 10: Windows cannot recognize my monitor.

I turned my machineWindows 11 on today and my 34", 1440p, curved screen monitor was reduced to an 800x600 piece of junk. Ok, well, the last time Windows put itself to sleep and then forgot how to do it's joband even a restart didn't work all I had to do in the end was unplug the HDMI cable and plug it back in while the machine was running. Already bad enough, but at least it was fixed. This time that did not work.I updated drivers, checked AMD Adrenaline, checked my PCI slot for burns, tried the other port on the GPU, and nothing changed. I also went and downloaded the INF files from MSI a

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Laptop suddenly stopped recognizing the external monitor

Hi,

Thank you for posting your query in Microsoft Community.

To assist you better, I would like to ask if the laptop is unable to recognize only the external monitor or other external devices also.

I suggest you to run the Hardware and Devices troubleshooter by following the steps below:

• Click on the Start button, and type “Troubleshooting” on the search bar.
• Click on “Hardware and Devices”.
• A pop-up will appear, click on the “Next” button and your hardware troubleshooting will start.
  

Hope the information is helpful. Keep us posted on the status for further assistance.

 

Windows 10 Won't Recognize Second Monitor Via HDMI

Hello,

I would suggest you to refer to the suggestions provided by
“Karthik Vengaloor” replied on May 19, 2013 in the Microsoft Community link and check if that helps.

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Note: The above steps holds good for Windows 10 as well.

I hope this information is helpful.

 

Dual monitor not recognized windows 10

Downloaded Windows 10 but my extended desktop Dell monitor is not recognized. It works fine with 7.

Any suggestions?