Please provide more detail about the source, file format and quality of the video.
Does this happen with other video sources or file formats?
What type of cable are you using? Are you using any type of converter or adapter?
It happens with every kind of video, the image and gif are from a youtube, but the exact same thing happens with 720p or 1080p files.
I'm using a HDMI cable when i connect the computer to my TV and a VGA cable(i think) when i connect my computer to my Computer screen. I tried to buy a new HDMI cable but it didn't help at all.
Does this happen with old driver versions, the driver you got from the system manufacturer, or even after uninstalling it and using Microsoft’s inbox driver?