No speaker sound on Galaxy Book5 Pro (Lunar Lake) - Subsystem ID 0x144dca08

[lpcbm]

Bug Report: No speaker sound on Samsung Galaxy Book5 Pro (Lunar Lake)

Summary

Internal speakers do not produce any sound on Samsung Galaxy Book5 Pro with Intel Lunar Lake-M processor. The audio codec is detected and all mixer controls show correct values, but no audio is output through the speakers.

System Information

Component	Value
Laptop Model	Samsung Galaxy Book5 Pro (NP940XHA-KG3FR)
Product Family	Galaxy Book5 Pro
BIOS Version	P07VAJ.330.250516.01
OS	Ubuntu 25.10 (Questing Quokka)
Kernel	6.17.0-8-generic
Audio Controller	Intel Lunar Lake-M HD Audio Controller [8086:a828]
Audio Codec	Realtek ALC298
Vendor ID	0x10ec0298
Subsystem ID	0x144dca08
Driver in use	sof-audio-pci-intel-lnl

Problem Description

The internal speakers are detected by the system and appear in audio settings, but produce no sound. All volume controls are unmuted and set to maximum. The speaker-test command runs without errors but no audio is heard.

What works:

• Audio device detection
• PipeWire/WirePlumber services
• Volume controls respond
• HDMI audio outputs are available
• Headphone jack OK (tested)

What doesn't work:

• Internal speaker audio output

Diagnostic Information

lspci output (audio):

00:1f.3 Multimedia audio controller [0401]: Intel Corporation Lunar Lake-M HD Audio Controller [8086:a828] (rev 10)
	Subsystem: Samsung Electronics Co Ltd Device [144d:ca08]
	Kernel driver in use: sof-audio-pci-intel-lnl

ALSA card info:

0 [sofhdadsp      ]: sof-hda-dsp - sof-hda-dsp
                     SAMSUNGELECTRONICSCO.LTD.-940XHA-P07VAJ-NP940XHA_KG3FR

Codec dump (key pins):

Codec: Realtek ALC298
Vendor Id: 0x10ec0298
Subsystem Id: 0x144dca08

Node 0x17 [Pin Complex] - Internal Speaker
  Pin Default 0x90170110: [Fixed] Speaker at Int N/A
  Pin-ctls: 0x40: OUT
  Connection: 0x0c 0x0d* 0x06

Node 0x03 [Audio Output] - Speaker DAC
  Amp-Out vals: [0x7f 0x7f] (max volume)

Speaker Playback Switch: on
Speaker Playback Volume: 127/127
Master Playback Switch: on
Master Playback Volume: 127/127

Loaded modules:

samsung_galaxybook     36864  0
snd_sof_pci_intel_lnl (via sof-audio-pci-intel-lnl)
snd_hda_codec_realtek

PipeWire status:

PipeWire 1.4.7 running
Sink: Lunar Lake-M HD Audio Controller Speaker [vol: 1.00] - DEFAULT

Suspected Cause

The subsystem ID 0x144dca08 (Samsung Galaxy Book5 Pro with Lunar Lake) is not in the kernel's quirk table for Realtek ALC298. This device likely requires a fixup similar to ALC298_FIXUP_SAMSUNG_AMP or ALC298_FIXUP_SAMSUNG_AMP2 to enable the internal speaker amplifiers.

Request

Please add a quirk entry for this device in sound/pci/hda/patch_realtek.c:

SND_PCI_QUIRK(0x144d, 0xca08, "Samsung Galaxy Book5 Pro", ALC298_FIXUP_SAMSUNG_AMP2),

Or the appropriate fixup that enables the speaker amplifiers for this Lunar Lake-based device.

Additional Notes

• The samsung-galaxybook platform driver (by Joshua Grisham) is loaded and working for other functions (keyboard backlight, battery extension)
• Previous workarounds using hda-verb scripts (designed for older Galaxy Book models) do not work on this Lunar Lake device
• Sound works correctly in Windows on the same hardware

Contact

• Reporter: bmarty
• Email: bmarty@mailo.com

References

• Related issue: Audio issues galaxy book5 pro CachyOS/linux-cachyos#622
• Samsung Galaxy Book driver: https://github.com/joshuagrisham/samsung-galaxybook-extras
• Similar kernel bug: https://bugzilla.kernel.org/show_bug.cgi?id=207423

[Evelynx08]

It seems to happen with all the family of Book5 and Book4 from some research I've done, but for me I also have Ubuntu 25.10 and my model is NP944XHA-KG2ES, I think it's caused because of Realtek but I can't prove it.

[eduardandreica]

Apparently someone found a fix for the Samsung Galaxy Book 4 Pro and Book 4 Pro 360. Maybe there is a similar fix for the Book 5 Pro.

GitHub fix: https://github.com/stephanlensky/galaxy-book4-linux-sound

[LucasDondo]

Same here, Ubuntu 25.10, SGB5P model NP960XHA.

[boommasterxd]

There will hopefully be an fix in the Linux Kernel, see PR: thesofproject/linux#5616

[Andycodeman]

For anyone looking for an easy way to apply these fixes — I've packaged tested, automated install scripts for both the speaker and webcam issues on Samsung Galaxy Book4 (and others) laptops:

https://github.com/Andycodeman/samsung-galaxy-book4-linux-fixes

Speaker fix: DKMS driver for the MAX98390 I2C amplifiers (based on thesofproject/linux PR #5616). Auto-rebuilds on kernel updates and auto-removes itself when native kernel support lands.

curl -sL https://github.com/Andycodeman/samsung-galaxy-book4-linux-fixes/archive/refs/heads/main.tar.gz | tar xz && cd samsung-galaxy-book4-linux-fixes-main/speaker-fix && sudo ./install.sh && sudo reboot

Webcam fix: Handles IVSC module loading, Intel IPU6 camera HAL setup, v4l2loopback relay, and PipeWire device classification. Works with Firefox, Chrome, Zoom, Teams, OBS, mpv, and more.

curl -sL https://github.com/Andycodeman/samsung-galaxy-book4-linux-fixes/archive/refs/heads/main.tar.gz | tar xz && cd samsung-galaxy-book4-linux-fixes-main/webcam-fix && ./install.sh && sudo reboot

Tested on: Samsung Galaxy Book4 Ultra, Ubuntu 24.04 LTS, kernel 6.17 (HWE). The upstream speaker PR (#5616) has also been confirmed working on the Book4 Pro, Pro 360, and Pro 16-inch by other users. If you're on a Galaxy Book5 or a different distro (Fedora, Arch, Manjaro, Debian, etc.), the fixes may still work since the underlying hardware (ALC298 + MAX98390 amps, IPU6 + OV02C10 sensor) is shared across models — but only the Ultra on Ubuntu has been directly verified. Reports from other configurations are welcome.

Note: The built-in microphones (DMIC) do not work yet on any of these models — that requires SOF driver support which is expected in kernel 7.0 (April 2026) or 7.1 (June 2026). See the repo README for details and workarounds.

[chrizgrin1]

Thanks speakers works now on my book5 pro!
Webcam not working since webcam fix is not installing. It ends with an error bcs no Intel Meteor lake is found. Book5 has Lunar lake chip.

[Andycodeman]

Thanks speakers works now on my book5 pro! Webcam not working since webcam fix is not installing. It ends with an error bcs no Intel Meteor lake is found. Book5 has Lunar lake chip.

Thanks for the update!
Unfortunately the webcam fix is for IPU6 drivers (Meteor Lake) and the book5 pro uses IPU7 drivers (Lunar Lake), so it won't work with it (I don't even have the hardware to try to fix it as I'm on Ultra4). I'm adding notes in the readme's and also in the installer to describe the situation so at least people are informed when running it.
Again, thanks for the info!

[Evelynx08]

I swithced to CachyOS (Arch Linux) and it seems that the Mic isn't working and I don't really know if it's because of the kernel or because some drivers are only supported on Ubuntu, I don't really know. But thanks to make the fix for the Book5 Pro.
This is the version of kernel i'm currently using.
Linux 6.19.0-2-cachyos

[Andycodeman]

I swithced to CachyOS (Arch Linux) and it seems that the Mic isn't working and I don't really know if it's because of the kernel or because some drivers are only supported on Ubuntu, I don't really know. But thanks to make the fix for the Book5 Pro. This is the version of kernel i'm currently using. Linux 6.19.0-2-cachyos

Thanks for the update...
The speaker fix working on Book5 Pro with CachyOS is great to hear.

Regarding the mic, did it work prior to running the install script? Because CachyOS (and Arch-based distros in general) don't include sof-firmware by default, which is required for the DMIC on Lunar Lake. Ubuntu and Fedora bundle it automatically, which is why the mic works out of the box on those distros (I believe). Other Arch users have reported fixing audio issues by installing it:

pacman -Q sof-firmware # check if it's installed
sudo pacman -S sof-firmware # install if missing
sudo reboot

Might be worth checking if that resolves it. We've added a note about this to the README for future Arch/CachyOS users.

[chrizgrin1]

Hi,
How is the sound quality on your book4?
On the book5 It’s very low compared to the sound when it runs under Win11. No lows, bass is completely missing.
But better than no sound.
Thank you

[Andycodeman]

Hi, How is the sound quality on your book4? On the book5 It’s very low compared to the sound when it runs under Win11. No lows, bass is completely missing. But better than no sound. Thank you

Yes, this is a real limitation of the fix. The missing bass/thin sound is expected, and here's why:

Windows has layers of audio DSP that Linux doesn't:

• Samsung's audio software (Dolby Atmos / Samsung Audio Wizard) applies EQ, bass boost, and room correction
• Small laptop speakers physically can't produce deep bass — Windows relies on psychoacoustic bass enhancement (DSP tricks that make your brain perceive bass from tiny speakers)
• The Windows Realtek driver has a fully tuned codec configuration with proper mixer levels and EQ curves

Our fix provides the raw driver only:

• The amps work and output audio, but there's zero post-processing
• Our DSM firmware was extracted from a Google Redrix Chromebook, not Samsung's Windows driver — the tuning is for a different speaker enclosure
• We bypass the alc269 quirk (which would configure the Realtek codec's output routing and mixer levels properly)

So the speakers sound thin/weak because that's what small laptop speakers actually sound like without DSP enhancement.

What you can try now: Install EasyEffects (PipeWire EQ) and apply bass boost / a custom EQ profile (or other EQ enhancing software). It won't match Windows quality but it should help significantly.

When will it improve? The upstream kernel fix (7.0/7.1) will include proper codec configuration through the alc269 quirk, which should improve the baseline audio. But matching Windows' Dolby Atmos processing is unlikely without Samsung
releasing Linux audio software.

I added this info to the repo as well.

Just to provide more info here if you want to try...

Improving sound quality with EasyEffects
You can significantly improve the sound using EasyEffects, a PipeWire-based audio effects application that provides EQ, bass enhancement, compression, and more:

Ubuntu / Debian

sudo apt install easyeffects

Fedora

sudo dnf install easyeffects

Arch / CachyOS / Manjaro

sudo pacman -S easyeffects
The Bass Enhancer effect requires Calf Studio Gear — install it if EasyEffects shows "Bass Enhancer Not Available":

Ubuntu / Debian

sudo apt install calf-plugins

Fedora

sudo dnf install calf-plugins

Arch / CachyOS / Manjaro

sudo pacman -S calf
Recommended: JackHack96 presets
The JackHack96 EasyEffects Presets collection includes several presets tuned for different use cases. Install them all:

bash -c "$(curl -fsSL https://raw.githubusercontent.com/JackHack96/EasyEffects-Presets/master/install.sh)"
After installing, open EasyEffects and select a preset from the Presets dropdown (top-left). Personal preference varies, but the "Advanced Auto Gain" preset does a good job toning down the highs and allowing the bass to come through more, resulting in a more evenly distributed sound on these laptop speakers.

I used the Advanced Auto Gain preset from JackHack96 and it's MUCH better on my laptop - but again, personal preference.