No Audio from AMDGPU HDMI on 5.19.2

[Alex Deucher]

+ Martin, Rodrigo

On Mon, Aug 22, 2022 at 3:18 AM 菜叶 <ye.jingchen at gmail.com> wrote:
>
> Hello,
>
> I experienced this issue on Arch Linux 5.19.2-arch1-1 kernel on an HP
> laptop with AMD Ryzen 6850HS CPU (detailed spec below), that the audio
> is completely silent on the HDMI connected monitor. KDE audio settings
> says everything works normally, HDMI audio shows up and can be
> selected as the default output, just no sound from it.
>
> It worked fine on Arch kernel v5.19.1-arch2. Laptop speakers always
> work, and the monitor works when connected to another Windows laptop
> over HDMI, so the monitor isn't the culprit I assume.
>
> Kernel log from the journal didn't seem to contain something relevant,
> but it may be me not knowing what to look for.
>
> This is discovered on Arch Linux kernel 5.19.2-arch1-1, but also
> reproducible on vanilla v5.19.2 tag.
>
> Bisecting between tag v5.19.1 and v5.19.2 in the stable tree gives:
> 308d0d5d98c294b1185d6d7da60b268e0fe30193 is the first bad commit
> commit 308d0d5d98c294b1185d6d7da60b268e0fe30193
> Author: Leung, Martin <Martin.Leung at amd.com>
> Date:   Fri May 13 17:40:42 2022 -0400
>
>    drm/amdgpu/display: Prepare for new interfaces
>
>    [ Upstream commit a820190204aef0739aa3a067d00273d117f9367c ]
>
> Anything else I can do to investigate?
>
> My hardware spec:
> Laptop: HP EliteBook 845 14 inch G9 Notebook PC
> CPU: AMD Ryzen 7 PRO 6850HS with Radeon Graphics
> GPU: VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
> Rembrandt [Radeon 680M]
>
> % lspci | grep -i audio
> 63:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Rembrandt
> Radeon High Definition Audio Controller
> 63:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD]
> ACP/ACP3X/ACP6x Audio Coprocessor (rev 60)
> 63:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family
> 17h/19h HD Audio Controller
>
> Software:
> plasma-desktop 5.25.4-1
> plasma-pa 5.25.4-1
> pipewire 1:0.3.56-1
> pipewire-pulse 1:0.3.56-1
> wireplumber 0.4.11-4
> alsa-card-profiles 1:0.3.56-1
> linux-firmware 20220708.be7798e-1
> sof-firmware 2.2-1