Confirming on a second Dell 16 Plus DB16250 (SKU 0D31), still broken on
7.0.0-30-genericSame machine as the original report: Dell 16 Plus
DB16250, Intel Core Ultra 7 258V (Lunar Lake), audio PCI 8086:a828
subsystem 1028:0d31, driver sof-audio-pci-intel-lnl.This is a second
unit. Original reporter tested 7.0.0-1009-oem and 7.0.0-28-generic. This
one is still broken on Ubuntu 26.04.1, kernel 7.0.0-30-generic, PipeWire
1.6.2, linux-firmware 20260319.git217ca6e4.Symptoms match: internal
speakers squeal/buzz during playback; headphone jack works; HDMI devices
enumerate.aplay -l — Speaker endpoint never comes up (0/1), Jack is fine
(1/1):{{{ card 0: sofsoundwire [sof-soundwire], device 0: Jack Out (*)
[] Subdevices: 1/1card 0: sofsoundwire [sof-soundwire], device 2:
Speaker (*) [] Subdevices: 0/1}}}PCI:{{{00:1f.3 Audio device [0403]:
Intel Corporation Lunar Lake-M HD Audio Controller [8086:a828] (rev 10)
Subsystem: Dell Device [1028:0d31] Kernel driver in use: sof-
audio-pci-intel-lnl}}}Loaded codec is RT722 only. snd_soc_rt722_sdca is
in use; snd-soc-rt1320-sdw is not loaded.As of 2026-09-14, mainline
sound/soc/intel/common/soc-acpi-intel-lnl-match.c still only has
lnl_rt722_only -> sof-lnl-rt722-l0.tplg. There is still no LNL machine
entry for RT722 (link 0) + RT1320 (links 2/3). That combination exists
for ARL (sof-arl-rt722-l0_rt1320-l2.tplg) and PTL (sof-ptl-
rt722-l0-rt1320-l23.tplg, LP: #2150196). The PTL SRU does not help this
LNL Dell.Please also affect linux (resolute) and firmware-sof-signed,
not only linux-signed-oem-7.0. This is a missing LNL ACPI match +
missing SOF topology, not an OEM-kernel-only issue.Happy to attach sudo
dmesg | grep -iE 'sof|soundwire|rt722|rt1320' and ls
/sys/bus/soundwire/devices if needed.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2161946
Title:
Dell 16 Plus DB16250، LNL + RT722، مضخّمات RT1320 على link 2/3 لا
تُكتشف، النواة تحمّل sof-lnl-rt722-l0.tplg
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firmware-sof/+bug/2161946/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
