It is correct to assume that with the Pi 4B's two HDMI outputs, it is possible, using two HDMI-to-RCA analog video adapters, to supply two analog CRT monitors with independent signals from the same computer? Like two PAL signals? The signal I need I guess is called 576i (standard PAL TV screen signal), on a composite RCA or SCART.

Like using two of these type of adapters which select PAL output and take 1080p or 720p input:

enter image description here

And would this also be possible with a Pi 3B, combining its analog output with an adapter on its HDMI output?

(Sound is not needed)

  • the pi doesn't care what happens to the signal once it leaves the pi into this HDMI-to-RCA analog video adapters - but no, you can't have both analog and HDMI output on the pi3+/3/2/1 Mar 13, 2020 at 11:28
  • @JaromandaX would you mind posting that as an answer then? I edited the question to include the type of adapter I imagine to use with both HDMI outputs of the Pi 4.
    – 0__
    Mar 13, 2020 at 11:31
  • Anecdotal experience with the RPI4 was that an HDMI to VGA adaptor would work on one hdmi port but not reliably well enough to use on the second one.
    – Charemer
    Mar 13, 2020 at 13:25
  • @Charemer I have been using dual screen with HDMI-VGA adapter on the second port without problems for more than 6 months. Perfectly reliable.
    – Dirk
    Mar 13, 2020 at 13:51
  • @Dirk - I don't disbelieve, that's why I said 'anecdotal'. Purely my own limited experience with RPi4 and HDMI to VGA - could've easily been a monitor or adaptor or cable issue.
    – Charemer
    Mar 13, 2020 at 16:39

1 Answer 1


I used two of those adapters and could get two independent analog video signals to work (Pi 4B).

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.