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HP Envy 360 2nd monitor locked at 640 x 640

HP Recommended
HP Envy x360 convertable
Microsoft Windows 10 (64-bit)

I just purchased this laptop and am setting it up I have a 2nd monitor, ACER S231HL connected to the HDMI 


The resolution is stuck at 640 x 640 I can't change it 

I have tried to reboot

I have updated windows

I have downloaded and updated the driver

I have changed cables

I have rolled back drivers

There are no options on the 2nd monitor the 640 x 640 is grayed out and not clickable 


What am i missing? 

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You didn't mention it, so I need to ask -- in Display Settings, do you have the Multiple Displays set to Duplicate or to Extend?

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***Please mark Accept As Solution if my post solved your problem***

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