4K TV with no video output - only GUI sound RPi 4

  • Hey guys, I installed LE on my RPi 4 yesterday, it worked flawlessly on my Samsung 1080p TV, but all I've got on my 4k TV was a blank screen.

    Only the rainbow square that appears on boot showed up and the GUI sounds.

    Also, when connected to the 1080p TV, I've noticed that there's no 2160p option on Display Output Settings, only 1080p.

    I tried to mess with config.txt using that enable_hdmi_4kp60=1, nothing happened.

    After some search I tried almost anything I could to find a way to create a new video ouput profile, since this seem to be the problem, but got no luck at all.

    Can you help me setting this up? Even if I'm not able to display 4k, I would be glad if it outputs 1080p.

    Thank you

    EDIT: I'm getting there!

    After some more search I changed the config.txt to this:


    # Force HDMI even if unplugged or powered off

    hdmi_force_hotplug=1


    # tentativa de forçar 1080p - WORKED

    hdmi_group=1

    hdmi_mode=16


    # Doesn't sent initial active source message.

    # Avoids bringing CEC (enabled TV) out of standby and channel switch when

    # rebooting.

    # hdmi_ignore_cec_init=1

    # tentativa de pegar na samsung

    # hdmi_enable_4kp60=1


    Than, I got video, 1080p60fps. BUUUUT, no audio.

    EDIT 2: Solved!

    Inserted hdmi_drive=2 on config.txt

    Edited 2 times, last by vikon (May 23, 2020 at 1:54 AM).