gnome - How to create virtual monitor with xrandr without increasing HDMI screen width? - Ask Ubuntu
nvidia - Xubuntu20.10: second monitor (TV), hdmi, detected & connected by PC, but picture input only detected by TV when mirrored - linux & windows - Ask Ubuntu
Displayport not working. Only laptop and HDMI screen works - Linux - NVIDIA Developer Forums
xrandr not detecting HDMI : r/linuxquestions
HDMI connected monitor and PC - Support - OpenMandriva forum
xorg - XRandR crops displayed area on certain multi-monitor configurations - Unix & Linux Stack Exchange
显示器不输出xrandr warning: output HDMI-1 not found_rk3399 warning: output hdmi-1 not found; ignoring-CSDN博客
Zorin OS Pro - Unable to connect external monitor via HDMI - Hardware Support - Zorin Forum
HDMI not detected by xrandr - Solus Forum
Common Display configurations for all Platforms — Jetson Linux Developer Guide documentation