Dell Latitude 5310 2-in-1, 5510, and 7210 2-in-1 laptop owners have reported that their Dell S3220DGF monitors resolution does not automatically adjust when you change between the DP (DisplayPort) and VGA (Video Graphics Array) display inputs.
If you unplug the VGA cable from the DA310 and then plug in the DP cable to the DA310, between the S3220DGF monitor and your computer. The DP resolution falls to 1920x1080@60 Hz instead of full resolution. (2560x1440@60 Hz for the S3220DGF.)
If you unplug the DP cable from the DA310 and then plug in the VGA cable to the DA310, between the S3220DGF monitor and your computer. There is no display on the monitor.
Dell engineering has confirmed this is a driver issue and is resolved by updating the graphics driver on your computer.
The following steps will take you through resolving this issue:
The display will resume once you have unplugged and then reconnected the Dell DA310 adapter to your computer.
You need to update the Intel Graphics driver to the most recent version available on the Dell Support Site:
Browse to the Dell Drivers and downloads page:
Select the Operating System
Under Category, select Video
Locate the latest Intel UHD Graphics Driver (Latest Version available)
Click Download and save the file to your computer
Open File Explorer and browse to the location where the downloaded file is saved
Double-click the graphics setup file and follow the on-screen instructions to complete the installation process