Hi, following reportbug instructions, I'm checking if this a known issue. Using Philips monitor 273V7 with internal speakers. GPU is Radeon Lexa Pro RX 550 640 SP - Baffin HDMI/DP Audio. Using GPU audio output After monitor sleeps, HDMI isn't working anymore or is degraded quality, with many audible artifacts. It is also usual to see display configuration screen. Easy way to solve it is to restart system