HDMI0 does not work.

    Hello, my Raspi 4 doesn't work through hdmi0. Only through it I can get the CEC function for the TV control to work.

    But he doesn't even show a sign.

    Libreelec works perfectly on HDMI1 but the TV remote does not work.

    I already tried some settings in config.txt but without success.

    Has anyone gone through this and could help me?

    Raspberry 4

    Cable Micro Hdmi X Hdmi 4K 2.0

    LibreELEC-RPi4.arm-10.0.2

    Samsung 4K Series 6

    Thanks to whoever helps.

    Quote from Da Flex

    Try dtoverlay=vc4-fkms-v3d,cma-512 instead of dtoverlay=vc4-kms-v3d,cma-512.

    Unfortunately it didn't work, and I've already tried all these command lines.

    In different ways.

    #dtoverlay=vc4-fkms-v3d,cma-512

    #hdmi_mode:0

    #hdmi_group:1

    #hdmi_enable_4kp60=1

    #hdmi_force_hotplug=1

    #config_hdmi_boost=9

    #gpu_mem=320

    #force_turbo=0

    #hdmi_ignore_edid=0xa5000080

    #disable_overscan=1

    #framebuffer_width=1920

    #framebuffer_height=1080

    #hdmi_force_hotplug=1

    #hdmi_group=1

    #hdmi_mode=16

    #dtparam=audio=on

    #dtoverlay=vc4-fkms-v3d

    #max_framebuffers=2

    #hdmi_safe_1

    #hdmi_force_hotplug=1

    #config_hdmi_boost=9

    Quote from Da Flex

    Please try Raspberry Pi OS on a different microSD. We have to make sure it's not a hardware defect on HDMI-0.

    I've tried several microsd, even bought a new one with more quality. As I said, it works perfectly on HDMI1. But I haven't tried another OS yet. Thanks for the help, I'll try what you said.

    This may be pointing out the obvious - but you are removing the # sign before each one aren't you? The presence of a # sign means the OS ignores everything after it on that line (it's designed for human readable comments that the OS ignores)

    Quote from noggin

    This may be pointing out the obvious - but you are removing the # sign before each one aren't you? The presence of a # sign means the OS ignores everything after it on that line (it's designed for human readable comments that the OS ignores)

    Yes, I'm removing the # to activate the command lines. I copied these to illustrate the lines I've tried.

    Quote from Da Flex

    Please try Raspberry Pi OS on a different microSD. We have to make sure it's not a hardware defect on HDMI-0.

    I've already tested OSMC and Raspiberry OS and both are the same. They only work on HDMI 1, no signal on HDMI0.

    Quote from jeancozer

    I've already tested OSMC and Raspiberry OS and both are the same. They only work on HDMI 1, no signal on HDMI0.

    Now it's clearly a broken HDMI-0. Use your warranty, or order a replacement.

    If you can't do both, then there are other ways to make an RC work, but not as easy as CEC.