[rahul_01]

Hi

I am experiencing wired problems with Kodi 21. Here are the scenario's

Scenario#1
PC no 1 is in my one TV room connected to Harman Kardon amplifier. This was a fresh install of Fedora 39 and flatpak Kodi 21 passthrough works 100%. This PC was upgraded to Fedora 40 and still I have Dolby TrueHD formats paying without any issues.

For this PC I use the command flatpak run tv.kodi.Kodi --audio-backend=alsa

Scenario#2
PC no 2 is in my home theater connected to yamaha amplifier. This was Fedora 34 initially and recently upgraded to Fedora 40 because above scenario worked. Now system will not play DolbyTreHD or DTS-X formats. It will just play Dolby or DTS of the same file instead.

For this PC when I use flatpak run tv.kodi.Kodi --audio-backend=alsa and when I play Dolby TrueHD format I hear scratching noise. So I either have to run one of the below for a HD audio format to downscale to non-HD at least.

flatpak run tv.kodi.Kodi --audio-backend=test or
flatpak run tv.kodi.Kodi --audio-backend=alsa+pulseaudio

What could be causing the issue, because, both the PC's have AMD GPU, same version of Fedora and same version of Kodi. Also in the settings I can see the options to enable HD audio.

[rahul_01]

Forgot to mention, both the pc's have same pipewire version

Server String: /run/user/1000/pulse/native
Library Protocol Version: 35
Server Protocol Version: 35
Is Local: yes
Client Index: 65
Tile Size: 65472
User Name: ABCDEF
Host Name: fedora
Server Name: PulseAudio (on PipeWire 1.0.7)
Server Version: 15.0.0
Default Sample Specification: float32le 2ch 48000Hz
Default Channel Map: front-left,front-right
Default Sink: alsa_output.pci-0000_01_00.1.hdmi-stereo
Default Source: alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor
Cookie: d1a2:2ba0

[rahul_01]

So for scenario # 2 I started using the below command, and then disabled HD audio, then it down scales to Dolby for TrueHD and DTS for DTS-MA. At least I can use Alsa. 

flatpak run tv.kodi.Kodi --audio-backend=alsa