Back in the early 2010's I had a cheap Dell laptop with a 6-bit panel and an integrated Intel GPU. Video on that device had incredible banding, almost all the t

Back in the early 2010's I had a cheap Dell laptop with a 6-bit panel and an integrated Intel GPU. Video on that device had incredible banding, almost all the time, because as I understand it, the Linux drivers were relatively immature and did not do any dithering. A few years later a driver update enabled dithering and the bulk of the problem went away. As a video codec developer I was a little sad about that, actually. I had to start looking closer to see problems.