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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    RPi4, broken HDMI0 port.

    Scheduled Pinned Locked Moved Help and Support
    hdmi1
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    • windgW
      windg
      last edited by

      The HDMI0 port is broken , i connect the cable to HDMI1. The system boot fine but when was the time for emulationstation to start , black screen. I press F4 and the terminal appear.

      It is something that i can done and use the system from port 1?

      Thanks!

      config.txt

      My English isn't at a good level.

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      • mituM
        mitu Global Moderator
        last edited by

        Out of the box, there's nothing that needs to be done, both ports should work. Do you have any configurations in /boot/config.txt that are display specific ?

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        • windgW
          windg
          last edited by windg

          The only thing i did was to change the resolution to 1280x720 and add overscan settings to remove the black boarders around the screen.

          I change this line on the config.txt:

          dtoverlay=vc4-fkms-v3d
          

          to

          dtoverlay=vc4-kms-v3d
          

          and no more black screen but now i don't have sound.

          My English isn't at a good level.

          mituM 1 Reply Last reply Reply Quote 0
          • mituM
            mitu Global Moderator @windg
            last edited by mitu

            @windg said in RPi4, broken HDMI0 port.:

            and no more black screen but now i don't have sound.

            Yeah, that won't work and until this is supported by RetroPie I advise you to leave the default configuration with fkms on.

            Post your entire /boot/config.txt and the output of dmesg after booting (use pastebin.com for the text).

            windgW 1 Reply Last reply Reply Quote 0
            • windgW
              windg @mitu
              last edited by

              @mitu

              config.txt

              dmesg

              My English isn't at a good level.

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              • mituM
                mitu Global Moderator
                last edited by

                You display doesn't send any EDID data. Add

                hdmi_ignore_edid=0xa5000080
                

                to config.txt and try again.

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                • windgW
                  windg
                  last edited by windg

                  Black screen again.

                  I test and a experimental setup of RetroPie that i have install on top of Bullseye 64bit and it is working fine. I think i will keep this for now, performance is very good for the emulators that i am using. Be carefull everyone, mini hdmi ports are very fragile. Thank you very much for your time mitu!

                  My English isn't at a good level.

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                  • windgW
                    windg
                    last edited by

                    I tryed to boot a fresh install of RetroPie 4.8 from HDMI1 and everything is working fine. Maybe the previous setup, that was set with HDMI0, create a conflict.

                    My English isn't at a good level.

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                    • windgW
                      windg
                      last edited by windg

                      I faced the same issue with a Pi 400. It looks that the issue is specific with the resolution and the second HDMI2 port. If I boot the system with the default resolution everything is fine. If i change the resolution to CEA 4 (1280x720 60hz) then a black screen appear instead of Emulationstation.

                      To be sure, I try to a second RPi4 and in a different TV and the same issue occured.

                      So if someone have the same issue, the HDMI 1 port for Rpi4 is near to power cable and in the Pi 400i is near to SD card slot or leave the default resolution if you want to use the HDMI2.

                      My English isn't at a good level.

                      1 Reply Last reply Reply Quote 0
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