I work on a 4K screen next to a 1080p one all day, and today was unbearable. Flicker, flicker, flicker on the secondary screen.

The DisplayPort Firmware Update Tool update went in last night. I've tried swapping DisplayPort and HDMI and moving the monitors to different outputs. The primary screen stays perfect. Can a driver really do this to just one screen?? The flicker is subtle enough that I sometimes doubt myself, then it happens three times in a row and I want to throw the monitor across the room 👍 Any ideas on what to test first??
