How to connect 4 monitor to 1 Rasberry PI 4 ?

  • just using 2 LCD monitor with HDMI port and another 2 LCD monitor with VGA port but using usb to VGA converter
    – sir lost
    Feb 4 '20 at 2:04
  • basically the question is How to connect 4 monitor to 1 rasberry pi 4?
    – sir lost
    Feb 4 '20 at 2:09
  • Ya that's the idea but it doesn't work with USB2VGA. no output after all. Do I need to do some config for it? because i cant find it on internet.
    – sir lost
    Feb 4 '20 at 2:15
  • google video wall ... you can set up four monitors, feed the same video to all four, configure each of the monitors to display 1/4 of the screen
    – jsotola
    Feb 4 '20 at 2:15
  • 1
    i heard that rasberry PI can only support 2 monitor so i wonder can it support 4 - I heard my car can only do 100MPH so I was wondering if it can go 200MPH - that's what your statement sounds like Feb 4 '20 at 3:25

Raspberry Pi 4 video supports dual 4k HDMI (micro hdmi sockets). Also supported is composite output but it's not clear if this can be used simulataneously as the HDMI ports. It certainly wouldn't be desirable to do this due to processing overhead and visual quality differences between the HDMI and composite outputs.

Whilst it may be possible to additionaly use USB to HDMI (or VGA) outputs it's unlikely that there would be enough processing resource to make it practical.

2 monitors is the practical limit.

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