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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

    HDMI on RPi4B with LCD

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    hdmi lcd display rpi4b how to
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    • L
      lanszelot
      last edited by

      Hello,
      I have RPi4B with official 7inch LCD, and Retropie running on LCD.
      Is it possible to setup if I plug HDMI it start with HDMI if no HMDI start with LCD?
      If not possible how can I use HDMI not LCD?

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      • mituM
        mitu Global Moderator
        last edited by

        Do you have the 7″ touch display ? You probably had to configure the Pi to use the DSI output my modifying the bootloader configuration (the config.txt file on the boot) partition. To switch back to HDMI, you'll need to remove or comment the lines that enable and configure the LCD.
        There might be a way to enable the LCD display only of HDMI is not detected through the use of conditional filters in config.txt, but you'll have to experiment and see if that's possible. If the LCD pannel cannot be detected at boot by the bootloader, then conditionally enabling/disabling it might not work.

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