[Desktop-packages] [Bug 1792822] Re: Dual monitor not working in 18.04(.1) on a dual-radeon-GPU system

Hi, I'm seeing this error as well. The last frame shown while logging in freezes on the second monitor and only the cursor updates. I have enabled iGPU Multi-Monitor for my ASUS motherboard, which enabled me to connect one monitor through the motherboard and one through my GPU - the one connected

[Desktop-packages] [Bug 1792822] Re: Dual monitor not working in 18.04(.1) on a dual-radeon-GPU system

I was able to solve the problem, by switching GPU-driver. "Software & Updates" -> "Additional Drivers" - I switched from: "Using X.Org X server - Nouveau display driver" to the NVIDIA-435. Perhaps this is only specific to my setup, by powering monitors from GPU as well as motherboard. Hope it help