black screen when switch 4K Xiaomi monitor's resolution to 1080p or below
In Ubuntu 20.04, we encountered display failure on Xiaomi 4K monitors with one specific KBL platform. Default 4K resolution is workable, while after switch monitor resolution to 1080p@60fps or below resolution, display is not workable with black screen. This specific KBL device classhub use PS175 as DP to HDMI converter.
Edited by Fei Jiang