K242HQK - Downscaling problems

wibbler
wibbler Member Posts: 1 New User

I am using an Acer K242HQK 4K monitor on Windows 8.1.

When I attempt to set the resolution to anything lower than 3840x2160, 1920x1080 for example, instead of the display scaling it to full screen, it displays the picture in a 1920x1080 box surrounded by black screen, so it's really tiny to see.

 

Is this a "feature", or am I doing something wrong?