Nothing wrong with your monitor. The only issue is that you changed the resolution the video card sends to the monitor to something your monitor doesn't understand. Just change it back.
Kees
Howdy, folks. Please help...
I came home today to find that my monitor, once booted up, displays the message 'Input not supported'.If I restart I can successfully boot up in safe mode, but not normally. It's an Acer v223w. Before this happened I had used TeamViewer to change my computer's resolution remotely, if that's relevant.
Can anyone help?

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