linux - Xorg/Xrandr Multiple Monitor (different resolution) - Position not set correctly - Super User
multiple monitors - DisplayLink not detected by Xrandr - Super User
xorg - Xrandr and nvidia-settings information inconsistent - Ask Ubuntu
My friend has a dual monitor setup (one is plugged into the NVidia GPU, the other one on integrated intel graphics on the mobo) and can only get one working at a
Dual GPU problem with multiple displays in GNU/Linux - Linux - NVIDIA Developer Forums
AMD and Nvidia Multi GPU Multi Monitor Setup on Linux - YouTube
Getting Multi Montior + Multi GPU working on Ubuntu 20.04 with NVIDIA proprietary drivers - Linux, macOS and Everything Not-Windows - Linus Tech Tips
Multi-Monitor Weird Tricks in Linux | David Crook
Can't connect to second monitor via HDMI (Ubuntu 20.04) - Linux - NVIDIA Developer Forums
HP Laptop with intel and nvidia, 3 monitors - Linux Mint Forums