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no sound out on built-in sources (Dell 9720 w/ Alder Lake PCH-P audio) #5988
Description
I have a new issue in the ongoing development of the Dell 9720 w/ Alder Lake PCH-P audio (#5795 #5780 etc). This time, detection looks all good, and sound input works fine. And the sound settings in GNOME even show sound output on the little meter there, but no actual sound comes out. This is with the built-in speakers, the headphone jack, and HDMI outputs.
Audacity also gets no sound via the default or the direct:
Here's my test sound file:
~ $ uname -r
7.1.13+deb13-amd64
~ $ aplay -D plughw:0,0 /home/hans/Downloads/untitled.wav
Playing WAVE '/home/hans/Downloads/untitled.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Mono
~ $ file /home/hans/Downloads/untitled.wav
/home/hans/Downloads/untitled.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 44100 Hz
~ $ aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
lavrate
Rate Converter Plugin Using Libav/FFmpeg Library
samplerate
Rate Converter Plugin Using Samplerate Library
speexrate
Rate Converter Plugin Using Speex Resampler
jack
JACK Audio Connection Kit
oss
Open Sound System
pipewire
PipeWire Sound Server
pulse
PulseAudio Sound Server
speex
Plugin using Speex DSP (resample, agc, denoise, echo, dereverb)
upmix
Plugin for channel upmix (4,6,8)
vdownmix
Plugin for channel downmix (stereo) with a simple spacialization
default
Default ALSA Output (currently PipeWire Media Server)
hw:CARD=sofsoundwire,DEV=0
sof-soundwire,
Direct hardware device without any conversions
hw:CARD=sofsoundwire,DEV=2
sof-soundwire,
Direct hardware device without any conversions
hw:CARD=sofsoundwire,DEV=5
sof-soundwire, HDMI 1
Direct hardware device without any conversions
hw:CARD=sofsoundwire,DEV=6
sof-soundwire, HDMI 2
Direct hardware device without any conversions
hw:CARD=sofsoundwire,DEV=7
sof-soundwire, HDMI 3
Direct hardware device without any conversions
hw:CARD=sofsoundwire,DEV=31
sof-soundwire,
Direct hardware device without any conversions
plughw:CARD=sofsoundwire,DEV=0
sof-soundwire,
Hardware device with all software conversions
plughw:CARD=sofsoundwire,DEV=2
sof-soundwire,
Hardware device with all software conversions
plughw:CARD=sofsoundwire,DEV=5
sof-soundwire, HDMI 1
Hardware device with all software conversions
plughw:CARD=sofsoundwire,DEV=6
sof-soundwire, HDMI 2
Hardware device with all software conversions
plughw:CARD=sofsoundwire,DEV=7
sof-soundwire, HDMI 3
Hardware device with all software conversions
plughw:CARD=sofsoundwire,DEV=31
sof-soundwire,
Hardware device with all software conversions
sysdefault:CARD=sofsoundwire
sof-soundwire,
Default Audio Device
dmix:CARD=sofsoundwire,DEV=0
sof-soundwire,
Direct sample mixing device
dmix:CARD=sofsoundwire,DEV=2
sof-soundwire,
Direct sample mixing device
dmix:CARD=sofsoundwire,DEV=5
sof-soundwire, HDMI 1
Direct sample mixing device
dmix:CARD=sofsoundwire,DEV=6
sof-soundwire, HDMI 2
Direct sample mixing device
dmix:CARD=sofsoundwire,DEV=7
sof-soundwire, HDMI 3
Direct sample mixing device
dmix:CARD=sofsoundwire,DEV=31
sof-soundwire,
Direct sample mixing device
usbstream:CARD=sofsoundwire
sof-soundwire
USB Stream Output
~ $ ii gstreamer1.0-pipewire:amd64 1.6.9-2~bpo13+1 amd64 GStreamer 1.0 plugin for the PipeWire multimedia server
ii libpipewire-0.3-0t64:amd64 1.6.9-2~bpo13+1 amd64 libraries for the PipeWire multimedia server
ii libpipewire-0.3-common 1.6.9-2~bpo13+1 all libraries for the PipeWire multimedia server - common files
ii libpipewire-0.3-modules:amd64 1.6.9-2~bpo13+1 amd64 libraries for the PipeWire multimedia server - modules
ii pipewire:amd64 1.6.9-2~bpo13+1 amd64 audio and video processing engine multimedia server
ii pipewire-alsa:amd64 1.6.9-2~bpo13+1 amd64 PipeWire ALSA plugin, for ALSA applications to output via PipeWire
ii pipewire-audio 1.6.9-2~bpo13+1 all recommended set of PipeWire packages for a standard audio desktop use
ii pipewire-bin 1.6.9-2~bpo13+1 amd64 PipeWire multimedia server - programs
ii pipewire-pulse 1.6.9-2~bpo13+1 amd64 PipeWire PulseAudio daemon
ii libwireplumber-0.5-0:amd64 0.5.18-1 amd64 Shared libraries for WirePlumber
ii wireplumber 0.5.18-1 amd64 modular session / policy manager for PipeWire
ii linux-base-7.1.13+deb13-amd64 7.1.13-1~bpo13+1 amd64 Linux 7.1.13 for 64-bit PCs (base files)
ii linux-binary-7.1.13+deb13-amd64 7.1.13-1~bpo13+1 amd64 Linux 7.1.13 for 64-bit PCs (kernel image)
ii linux-headers-7.1.13+deb13-amd64 7.1.13-1~bpo13+1 amd64 Linux 7.1.13 for 64-bit PCs (module development)
ii linux-headers-7.1.13+deb13-common 7.1.13-1~bpo13+1 all Common header files for Linux 7.1.13+deb13
ii linux-image-7.1.13+deb13-amd64 7.1.13-1~bpo13+1 amd64 Linux 7.1.13 for 64-bit PCs
rc linux-image-amd64 7.1.13-1~bpo13+1 amd64 Linux for 64-bit PCs (meta-package)
ii linux-kbuild-7.1.13+deb13 7.1.13-1~bpo13+1 amd64 Kbuild infrastructure for Linux 7.1.13+deb13
un linux-latest-modules-7.1.13+deb13-amd64 <none> <none> (no description available)
ii linux-modules-7.1.13+deb13-amd64 7.1.13-1~bpo13+1 amd64 Linux 7.1.13 for 64-bit PCs (modules)
Activity
eighthave commentedon Oct 21, 2026
Upgrading to Linux 7.2.9+deb13-amd64 has improved things, but hasn't fixed everything. The speakers and HDMI output now work, but headphone output still does not. The headset plug detection looks like it is working fine.
eighthave commentedon Nov 4, 2026
Just upgraded to 7.2.11 and that introduce a regression. It is now back to the original state as described at the top.
eighthave commentedon Nov 5, 2026