Windows 7 is not showing a 1920x2160 option for my Plugable USB 3.0 4K DisplayPort Adapter. Is it possible? I would like to use this adapter to fill half of a UHD display (picture-by-picture).
Thanks for posting. I would be happy to help with your adapter!
I have helped a few customers use our adapter in the manner you describe. If Windows isn’t presenting the proper resolution option the first thing to check is that the driver for your integrated graphics adapter (upon which our adapter depends to function) is up to date, as an out of date driver is most likely the cause.
Can you try updating the driver to see if that helps?