Hey all,
the whole installation was like a walk through the park but finally turned into a multi hour horror trip ... i had no sound on HDMI0 neither HDMI1.
Hardware:
Raspberry PI 4
Raspberry PI 4 HDMI0 - HDMI Adapter Typ C to Typ A - HDMI Cabel Typ A to Typ A - Televison
TV: Kendo (sorry no more information)
Software:
LibreELEC (official): 12.0.2 (RPi4.aarch64)
I used Raspberry PI Imager v1.8.5
I' ve chosen:
Model: Raspberry PI 4
OS: LibreELEC (RPPi4) published 2025-01-20
I've searched the internet and asked chatgpt. I tried several changes at the config.txt as you can see here. But nothing worked:
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2009-2014 Stephan Raue ([email protected])
# Copyright (C) 2016-present Team LibreELEC (https://libreelec.tv)
################################################################################
# Bootloader configuration
# config.txt version v1 (do not remove or change this line!)
################################################################################
# For more options and information see
# http://rpf.io/configtxt
################################################################################
# Default GPU memory split, 76MB are needed for H264 decoder
gpu_mem=76
# Don't send initial active source message.
# Avoids bringing CEC (enabled TV) out of standby and channel switch when
# rebooting.
hdmi_ignore_cec_init=1
# Enable 4kp60 output on the first HDMI connector
hdmi_enable_4kp60=0
[all]
################################################################################
# Use distroconfig-composite.txt instead of distroconfig.txt to enable
# composite video output.
# The composite video mode needs to be configured in cmdline.txt:
# For PAL add: video=Composite-1:720x576@50ie
# For NTSC add: video=Composite-1:720x480@60ie
################################################################################
include distroconfig.txt
#include distroconfig-composite.txt
# uncomment to enable analog audio output
#dtparam=audio=on
#audio_pwm_mode=1
# uncomment to enable infrared remote receiver connected to GPIO 18
#dtoverlay=gpio-ir,gpio_pin=18
dtoverlay=disable-wifi
hdmi_port=0 # F r HDMI0 (prim r) ist der der am Nahesten am Powerport ist.
hdmi_force_hotplug=1
hdmi_group=1
# hdmi_mode=16
hdmi_drive=2
hdmi_safe=1
dtoverlay=vc4-kms-v3d,cma-512distroconfig.txt :
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2019-present Team LibreELEC (https://libreelec.tv)
# WARNING: DO NOT EDIT THIS FILE - IT WILL BE OVERWRITTEN WHEN UPGRADING!
arm_boost=1
arm_64bit=1
kernel=kernel.img
display_auto_detect=1
dtoverlay=vc4-kms-v3d,cma-512
dtoverlay=
disable_overscan=1
disable_fw_kms_setup=1aplay has the following output:
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: vc4hdmi0 [vc4-hdmi-0], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: vc4hdmi1 [vc4-hdmi-1], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0]
Subdevices: 1/1
Subdevice #0: subdevice #0So it seems that hdmi should work. But in libreelec/properties/system/audio there is only one driver "Pulseaudio" there is no "alsa HDMI" driver.
I would appreciate any help.
thx