No sound on Linux

[quaternion]

I've bought a new LG Gram 16 (model 16T90SP-K.ADB9U1) laptop and want to install Linux on it. Everything's fine except the audio doesn't work. I've also tried KDE Neon, but the issue still persists. The sound is mute even in the Live boot.

Output of lspci -v:

00:1f.3 Multimedia audio controller: Intel Corporation Meteor Lake-P HD Audio Controller (rev 20)
       DeviceName: Onboard - Sound
       Subsystem: LG Electronics, Inc. Meteor Lake-P HD Audio Controller
       Flags: bus master, fast devsel, latency 32, IRQ 247, IOMMU group 16
       Memory at 5020310000 (64-bit, non-prefetchable) [size=16K]
       Memory at 5020000000 (64-bit, non-prefetchable) [size=2M]
       Capabilities: <access denied>
       Kernel driver in use: snd_hda_intel
       Kernel modules: snd_hda_intel, snd_sof_pci_intel_mtl
​

inxi -SMA:

Audio:
Device-1: Intel Meteor Lake-P HD Audio driver: snd_hda_intel
API: ALSA v: k6.8.0-51-generic status: kernel-api
Server-1: PipeWire v: 1.0.5  status: active

​

Please help.

[Qqmike]

No one is as yet replying to you about technical sound card issues ...
But while waiting, let's check to be sure your sound is not muted in the system tray. On your desktop, at the bottom of screen, usually over at the right side, the sound icon.
Not crossed out with a red line? Left-click on that icon. Now check the two tabs, Devices and Applications, nothing muted?
(This has happened in the past to other users.)

[quaternion]

No, nothing is muted.

[claydoh]

So, there is an audio entry in the tray widget, and it doesn't show as "dummy output" or anything similar?

Actually---- you probably need a more current kernel and firmware, so I'd suggest trying a 24.10 live session just to check if this is the case.

A 6.8 kernel may work with updated firmware -- 24.04 's files are from just about the time meteor lake was released in late 2023.

But a more recent kernel is likely a better/easier choice, and should have more current firmware.

24.04 LTS won't see a new kernel release for some months yet. Mainline kernels may be an option if a more current distro release is not desired. Look here for a popular and helpful tool

[quaternion]

It shows "Speakers," not dummy output. The issue still persists on Kubuntu 24.10 live session.

[claydoh]

So you may need newer audio firmware blob, too perhaps. firmware-sof-signed specifically.https://github.com/thesofproject/sof-bin/
Meteor Lake devices seem to need this and kernel support, no matter the distro, at least at some point -- super current and rolling distros may already have both but I see issues in recent months across the main distro types.

Have you checked the device-specific options, just in case, and just tossed in there ?



or
mmotns

https://github.com/thesofproject/sof-bin/ maybe?
It will probably take some research.