Raspberry Pi 1080p Or 1080i [PORTABLE]
I'm running it using VNC-Viewer-6.19.325-Linux-x64 from my Linux workstation but have the HDMI output connected to my TV which can only do up to 1080i. tvservice -m CEA shows it supports 6 modes, 3 progressive up to 720x480 @ 60Hz, 16:9; and 3 interlaced with 1920x1080 @60Hz, 16:9 being marked (prefer). The supported CEA modes are 1,2,3,5,6 & 7.