xrandr --listproviders
Providers: number : 1
Provider 0: id: 0x49; cap: 0xf (Source Output, Sink Output, Source Offload, Sink Offload); crtcs: 3; outputs: 7; associated providers: 0; name: modesetting
    output eDP-1
    output DP-1
    output HDMI-1
    output DP-2
    output HDMI-2
    output DP-3
    output HDMI-3