The best solution by far is to return the monitor and get one which does not crop corners.

The pattern of triple dots on the monitor is fixed, 1920 x 1080, in the case of the monitor you describe. To make an image fit in a smaller space, it would need to be scaled, interpolating a 1080 x 1920 image to, say, 1040 x 1849, making everything just a little lower resolution, perhaps a bit blurry.

Upscaling software is common, to make a 1080p image appear sharper on high-resolution monitor. Jongate advertises an application for "real-time video scaling".

• You would need to investigate if such software can perform realtim downscaling.
• Depending on the GPU, scaled video might be slow, or skip frames.
• And, as mentioned, images and videos will look less than their best.

The best solution by far is to return the monitor and get one which does not crop corners.

The pattern of triple dots on the monitor is fixed, 1920 x 1080, in the case of the monitor you describe. To make an image fit in a smaller space, it would need to be scaled, interpolating a 1080 x 1920 image to, say, 1040 x 1849, making everything just a little lower resolution, perhaps a bit blurry.

Upscaling software is common, to make a 1080p image appear sharper on high-resolution monitor. Jongate advertises an application for "real-time video scaling".

• You would need to investigate if such software can perform realtime downscaling for the entire video output, not just to a stream.
• Depending on the GPU, scaled video might be slow, or skip frames.
• And, as mentioned, images and videos will look less than their best.