To everyone who haven't resolved this yet:(I am combining all the solutions into one post)

Option 1.Try Rolling back if you have an option:

See DaveM and Sumit Dhiman2 posts:

https://answers.microsoft.com/en-us/windows/forum/windows_10-start-win_general/screen-stretched-and-resolution-options-dont-fix/20ce6b86-69ad-42d2-83ab-847df6ab9e5e#LastReply

Option 2. Remove AMD drivers completely and Install the legacy ones from the AMD site:

What you need to do:

1. Uninstall everything of AMD using this: http://support.amd.com/en-us/kb-articles/Pages/AMD-Clean-Uninstall-Utility.aspx and reboot

2. Reboot.

3. Make sure your device manager shows Microsoft Basic Display adapter.

4. Download the legacy driver from here(You might have to do a bit of exercise to locate the driver:

http://www.support.amd.com/en-us/download

5.Run the Setup and you should be good to go.



Option 3: See if Windows itself has some history of the Older Driver:

Solution by Ken-C here:

https://answers.microsoft.com/en-us/windows/forum/windows_10-hardware/windows-10-set-display-resolution-to-1920x1080/8ad4adc6-7cc1-494e-b296-e6c4dd8caefa?messageId=913d5c97-7dd7-4780-b735-1026da383882

Please note all the steps need temporarily disabling of Windows update or driver updates so that newer driver doesn't install automatically.

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Why did this happen?

http://www.yourwindowsguide.com/2017/11/is-your-computer-not-showing-display.html