I have had these artifacts on playback since day 1 with a Jetson Nano, like nov/2019, but never cared about asking until today.
See the attached picture:
It looks like something in the shadows or when pure black, and not always green. Can also be blue or red. I have read various discussions online but most of them are Windows and the fixes don’t seem to apply here. Nvidia driver is 32.2.1 and plugged via HDMI, but the same happens in DisplayPort. Resolution is 3440x1440. Also happens in OpenGL apps such as a screensaver. It has a small fan attached and temps never go higher than 32 C even when running long CUDA sessions.
I have been using the Nano as a regular PC since I bought it but mostly for programming, the issue doesn’t really disturb me because I can use other computers to watch videos, but always wondered if I have a defective unit in hands or if it is a known fixable problem.