After shelving my Rock 64 I dusted it off and downloaded the latest desktop image with Ubuntu Focal. The latest OS has video artifacts that the older OS did not. I can only describe the issue as "scan lines," but they are random black bars that appear through out the entire screen (as if WiFi is interrupting the signal only there's no WiFi on the device). I would like to know the best way to bisect the issue as I'm fully capable of cloning the repo, building the image, loading the image and test