Notes: The solution works for many monitors but this note focus on AOC I1659FWUX. I bought AOC I1659FWUX. It is a Portable monitor (USB powered). It has a few issues. One of them is you can't set brightness out of the box, because: The monitor does not have any buttons, so you can't set brightness.… Continue reading How to set brightness in AOC I1659FWUX ?