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Ted PennerFlag for United States of America

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Change the resolution of my extended 32" monitor.

The resolution on my Surface 4 Pro Laptop is 2736 x 1824 which is what is recommended.

When I try to extend the desktop to my 32" LG monitor for presentations, the resolution for that monitor is maxed out at 640 x 480.

This wasn't the case a month ago and I have been unable to determine what happened.

Assistance in resolving this and gaining a higher resolution for the extended monitor would be greatly appreciated.
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John
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Standard troubleshooting would include:

-test using a different connector if possible by means of a docking station (which output connector are you using? Mini DisplayPort?)
-test with only the external monitor active (winkey+p)
-take another laptop and try the same
-test with another monitor cable
-test with another monitor