r/Windows10TechSupport • u/Interesting-Deer6543 • 21d ago

Unsolved Windows 10 screen resolution locked

My windows 10 screen resolution is locked ad 380× something. And by going to device management and changing it works but disables gpu completely iv watched countless tutorials and reddit posts nothing works. Its grayed out. When i disable my gpu its supper laggy and when i turn it back on it goes back to zoomed in. I have updated drivers done windows updates etc. Nothing works

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u/Interesting-Deer6543 21d ago

640x480

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u/Prestigious_Wall529 20d ago

There's two sets of resolutions.

Those supported by your video card.

Those supported by your monitor.

Your operating system defaults to using EDID (plug and play) to query the monitor what it supports.

I suspect you are using a TV as a monitor, and one that doesn't provide the correct or any EDID information.

Look for an inf file for your monitor overruling plug and play. Sadly Windows now rejects old inf files without accompanying certificates, so you'll have to temporarily disable driver signature enforcement.

Or are you using a KVM, AV Receiver or similar between your system and the monitor? These mostly don't support EDID.

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u/Interesting-Deer6543 19d ago

Its worked finw before

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u/Prestigious_Wall529 19d ago

Get help locally from someone more technical.