Samsung Odyssey G6 G60SD won't automatically turn on when using HDMI

[ChuMarty]

My Samsung Odyssey G6 G60SD won’t turn on automatically at boot when using HDMI—it doesn’t detect a signal from the PC, so I have to turn it on manually. It works fine with DP 1.4, but I switched to HDMI 2.1 because DP was causing flickering and slow startup. I’m using a dual-monitor setup with the G6 G60SD and a 1080p ASUS monitor, both connected to an RTX 4070 Ti Super. 

[Members_bPzqEEg]

I have the same problem in DP.