ViewSonic VP2768 User Manual page 29

To ensure auto-detection is successful, go to 'Advanced Display
Settings' under your system 'Display Settings' (screen resolution)
window. There you can verify your ViewSonic monitor has been
recognized by your PC in the 'Color Management' section of your
advanced settings.
If your PC has not auto-detected the monitor, but is still functioning,
you can restart your computer and follow the steps above again. It
is not imperative for your computer to detect the monitor for normal
use, but it is recommended.
If you encounter additional problems or have questions, please
contact Customer Support.
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