Dell Pro 16 Plus PB16250 - no audio

Support
1

Requirements:

I have Searched the forum for my issue and found nothing related or helpful
I have checked the Resources category (Resources Index)
I have reviewed the Wiki for relevant information
I have read the the Release Notes and Errata

OpenMandriva Lx version:

OpenMandriva Lx release 25.06 (ROME) Rolling for x86_64

The detail from Info Center:
Operating System: OpenMandriva ROME 25.06
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.13.0
Qt Version: 6.9.0
Kernel Version: 6.15.7-desktop-2omv2590 (64-bit)
Graphics Platform: X11
Processors: 14 × Intel® Core™ Ultra 7 265U
Memory: 30.8 GiB of RAM
Graphics Processor: Intel® Graphics
Manufacturer: Dell Inc.
Product Name: Dell Pro 16 Plus PB16250

Desktop environment (KDE, LXQT…):

KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.13.0

Description of the issue (screenshots if relevant):

I have tried many things so far.
Firsty I have set one of these options in the /etc/modprobe.d/alsa.conf file

# Force the DSP driver for Intel DSP (0=auto, 1=legacy, 2=SST, 3=SOF, 4=AVS)
# options snd-intel-dspcfg dsp_driver=1
# options snd-intel-dspcfg dsp_driver=3

# options snd-hda-intel model=1028:0cf5

# options snd-hda-intel model=generic

# options snd-hda-intel model=laptop
# options snd-hda-intel model=mobile
# options snd-hda-intel model=dell
# BAD options snd-hda-intel model=8086:7728
# blacklist snd_hda_intel

# options snd-hda-intel probe_mask=1
# options snd-hda-intel position_fix=4

Then I have downloaded and installed several things. Mostly from the cooker repository.
See ls Downloads/
sof-bin-2025.05.1.tar.gz
kernel-desktop-6.15.5-2-omv2590.x86_64.rpm
kernel-desktop-6.15.7-2-omv2590.x86_64.rpm
kernel-desktop-6.16.5-1-omv2590.x86_64.rpm
kernel-desktop-6.17.0-1-omv2590.x86_64.rpm
kernel-firmware-extra-20250720-1-omv2590.noarch.rpm
kernel-firmware-20250720-1-omv2590.noarch.rpm
Nothing has worked.

Everything I have written to the Internet via the alsa-info.sh.
https://wiki.archlinux.org/title/Advanced_Linux_Sound_Architecture/Troubleshooting
When I set the legacy, I could hear sound from HDMI channels only. No speaker, no microphone.
See http://alsa-project.org/db/?f=de32e211f9b5709a4646ce8ed0bf8f461e696741

Relevant informations (hardware involved, software version, logs or output…):

Audio controller: Cirrus Logic CS42L43

https://www.dell.com/support/manuals/en-uk/dell-pro-pb16250-laptop/dellpro16plus_pb-16250_om_arl/audio?guid=guid-6878b68f-ccfb-4c6a-9f62-3ed941403f53&lang=en-us

Finally I have tried the Ubuntu 24.04.2 LTS in Live mode from my USB stick. It have worked. See the alsa-info.txt.1j7OjJuwDZ.

What else should I do? Is it possible to tune it as is in the Ubuntu 24.04.2 LTS?

See first lines from the alsa-info.txt.1j7OjJuwDZ or see the file https://drive.google.com/file/d/1Q1raxikXeYWtFeevwSLX8BXomHXycVRs/view?usp=sharing

upload=true&script=true&cardinfo=
!!################################
!!ALSA Information Script v 0.5.3
!!################################

!!Script ran on: Sat Sep  6 20:52:11 UTC 2025


!!Linux Distribution
!!------------------

Ubuntu 24.04.2 LTS \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 24.04.2 LTS" PRETTY_NAME="Ubuntu 24.04.2 LTS" NAME="Ubuntu" ID=ubuntu ID_LIKE=debian HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubun
tu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" UBUNTU_CODENAME=noble LOGO=ubuntu-logo


!!DMI Information
!!---------------

Manufacturer:      Dell Inc.
Product Name:      Dell Pro 16 Plus PB16250
Product Version:   
Firmware Version:  2.4.2
System SKU:        0CF5
Board Vendor:      Dell Inc.
Board Name:        0R3JVY


!!ACPI Device Status Information
!!---------------

/sys/bus/acpi/devices/ACPI0003:00/status 	 15
/sys/bus/acpi/devices/ACPI000C:00/status 	 15
/sys/bus/acpi/devices/ACPI000E:00/status 	 15
/sys/bus/acpi/devices/DLLK0CF5:00/status 	 15
/sys/bus/acpi/devices/INT33A1:00/status 	 15
/sys/bus/acpi/devices/INT340E:00/status 	 15
/sys/bus/acpi/devices/INTC1042:00/status 	 15
/sys/bus/acpi/devices/INTC105E:00/status 	 15
/sys/bus/acpi/devices/INTC1062:00/status 	 15
/sys/bus/acpi/devices/INTC1062:01/status 	 15
/sys/bus/acpi/devices/INTC1062:02/status 	 15
/sys/bus/acpi/devices/INTC1062:03/status 	 15
/sys/bus/acpi/devices/INTC1062:04/status 	 15
/sys/bus/acpi/devices/INTC1062:05/status 	 15
/sys/bus/acpi/devices/INTC1064:00/status 	 15
/sys/bus/acpi/devices/INTC1077:00/status 	 15
/sys/bus/acpi/devices/INTC109F:00/status 	 15
/sys/bus/acpi/devices/LNXPOWER:00/status 	 1
/sys/bus/acpi/devices/LNXPOWER:01/status 	 1
/sys/bus/acpi/devices/LNXPOWER:02/status 	 1
/sys/bus/acpi/devices/LNXPOWER:03/status 	 1
/sys/bus/acpi/devices/LNXPOWER:05/status 	 1
/sys/bus/acpi/devices/LNXPOWER:06/status 	 1
/sys/bus/acpi/devices/LNXPOWER:07/status 	 1
/sys/bus/acpi/devices/PNP0103:00/status 	 15
/sys/bus/acpi/devices/PNP0A05:00/status 	 15
/sys/bus/acpi/devices/PNP0C02:01/status 	 8
/sys/bus/acpi/devices/PNP0C02:02/status 	 8
/sys/bus/acpi/devices/PNP0C02:04/status 	 8
/sys/bus/acpi/devices/PNP0C02:06/status 	 3
/sys/bus/acpi/devices/PNP0C02:07/status 	 3
/sys/bus/acpi/devices/PNP0C02:08/status 	 3
/sys/bus/acpi/devices/PNP0C09:00/status 	 15
/sys/bus/acpi/devices/PNP0C0A:00/status 	 31
/sys/bus/acpi/devices/PRP00001:00/status 	 15
/sys/bus/acpi/devices/PRP00001:01/status 	 11
/sys/bus/acpi/devices/STM0176:00/status 	 15
/sys/bus/acpi/devices/USBC000:00/status 	 15
/sys/bus/acpi/devices/VEN_06CB:00/status 	 15
/sys/bus/acpi/devices/device:09/status 	 15
2

Please fix this to indicate what you have done. If you have not done these things, please do them.

Please also include dmesg and journalctl logs pertaining to your audio device so we can begin to assist with troubleshooting.

3

Hello,

I have done all 4 things.
Searched, checked, reviewed and read.

There is only one interesting note about audio there.
https://wiki.openmandriva.org/en/distribution/releases/omlx60/errata
Pipewire sound server
Some users may experience issues with the new Pipewire sound server. If so user may switch to the older pulseaudio sound server. To do this open Konsole and run the following copy and paste command:
$ sudo dnf remove pipewire-pulse ; sudo dnf install pulseaudio-server

I have not tried it yet.
I have this one.
Name : pipewire-pulse
Version : 1.4.4
Release : 1

About dmesg .
You can see it in the http://alsa-project.org/db/?f=905779c350200e24c81f93dd82435cb08cd7ebec link. Part ALSA/HDA dmesg.

4 
[mila@openmandriva-x8664 ~]$ journalctl -b 0 | grep -e "audio" -e "cs42l43" -e "pipewire" -e "pulse"
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3: enabling device (0000 -> 0002)
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if 0x040380
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3: bound 0000:00:02.0 (ops intel_audio_component_bind_ops [i915])
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3: use msi interrupt mode
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3: hda codecs found, mask 4
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3: NHLT device BT(0) detected, ssp_mask 0x4
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3: BT link detected in NHLT tables: 0x4
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3: DMICs detected in NHLT tables: 0
Nov 07 21:36:45 openmandriva-x8664 kernel: cs42l43 sdw:0:0:01fa:4243:01: supply vdd-p not found, using dummy regulator
Nov 07 21:36:45 openmandriva-x8664 kernel: cs42l43 sdw:0:0:01fa:4243:01: supply vdd-d not found, using dummy regulator
Nov 07 21:36:45 openmandriva-x8664 kernel: cs42l43 sdw:0:0:01fa:4243:01: supply vdd-a not found, using dummy regulator
Nov 07 21:36:45 openmandriva-x8664 kernel: cs42l43 sdw:0:0:01fa:4243:01: supply vdd-io not found, using dummy regulator
Nov 07 21:36:45 openmandriva-x8664 kernel: cs42l43 sdw:0:0:01fa:4243:01: supply vdd-cp not found, using dummy regulator
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3: Firmware paths/files for ipc type 1:
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3:  Firmware file:     intel/sof-ipc4/arl/sof-arl.ri
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3:  Firmware lib path: intel/sof-ipc4-lib/arl
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3:  Topology file:     intel/sof-ace-tplg/sof-arl-cs42l43-l0.tplg
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3: Loaded firmware library: ADSPFW, version: 2.13.0.1
Nov 07 21:36:45 openmandriva-x8664 kernel: sof-audio-pci-intel-mtl 0000:00:1f.3: Booted firmware version: 2.13.0.1
Nov 07 21:36:45 openmandriva-x8664 kernel: cs42l43 sdw:0:0:01fa:4243:01: devid: 0x042a43, rev: 0xa1, otp: 0x03
Nov 07 21:36:45 openmandriva-x8664 kernel: cs42l43 sdw:0:0:01fa:4243:01: Slave 6 state check1: UNATTACHED, status was 1
Nov 07 21:36:46 openmandriva-x8664 dbus-broker-launch[810]: Looking up NSS user entry for 'pulse'...
Nov 07 21:36:46 openmandriva-x8664 dbus-broker-launch[810]: NSS returned no entry for 'pulse'
Nov 07 21:36:46 openmandriva-x8664 dbus-broker-launch[810]: Invalid user-name in /usr/share/dbus-1/system.d/pulseaudio-system.conf +27: user="pulse"
Nov 07 21:36:47 openmandriva-x8664 systemd[890]: Listening on pipewire-pulse.socket - PipeWire PulseAudio.
Nov 07 21:36:47 openmandriva-x8664 systemd[890]: Listening on pipewire.socket - PipeWire Multimedia System Sockets.
Nov 07 21:36:47 openmandriva-x8664 systemd[890]: pipewire.service - PipeWire Multimedia Service was skipped because of an unmet condition check (ConditionUser=!@system).
Nov 07 21:36:47 openmandriva-x8664 systemd[890]: pipewire-pulse.service - PipeWire PulseAudio was skipped because of an unmet condition check (ConditionUser=!@system).
Nov 07 21:36:55 openmandriva-x8664 systemd[985]: Listening on pipewire-pulse.socket - PipeWire PulseAudio.
Nov 07 21:36:55 openmandriva-x8664 systemd[985]: Listening on pipewire.socket - PipeWire Multimedia System Sockets.
Nov 07 21:36:55 openmandriva-x8664 systemd[985]: Started pipewire.service - PipeWire Multimedia Service.
Nov 07 21:36:55 openmandriva-x8664 systemd[985]: Started pipewire-pulse.service - PipeWire PulseAudio.
Nov 07 21:36:56 openmandriva-x8664 kded6[1215]: org.kde.pulseaudio: No object for name "auto_null.monitor"
Nov 07 21:36:58 openmandriva-x8664 systemd[985]: Starting app-pulseaudio@autostart.service - PulseAudio Sound System...
Nov 07 21:36:58 openmandriva-x8664 systemd[985]: app-pulseaudio@autostart.service: Skipped due to 'exec-condition'.
Nov 07 21:36:58 openmandriva-x8664 systemd[985]: Condition check resulted in app-pulseaudio@autostart.service - PulseAudio Sound System being skipped.
Nov 07 21:36:58 openmandriva-x8664 plasmashell[1245]: org.kde.pulseaudio: No object for name "auto_null.monitor"
Nov 07 21:37:05 openmandriva-x8664 systemd[890]: Closed pipewire-pulse.socket - PipeWire PulseAudio.
Nov 07 21:37:05 openmandriva-x8664 systemd[890]: Closed pipewire.socket - PipeWire Multimedia System Sockets.
Nov 07 21:37:13 openmandriva-x8664 systemd[1683]: pipewire-pulse.socket - PipeWire PulseAudio was skipped because of an unmet condition check (ConditionUser=!root).
Nov 07 21:37:13 openmandriva-x8664 systemd[1683]: pipewire.socket - PipeWire Multimedia System Sockets was skipped because of an unmet condition check (ConditionUser=!root).
Nov 07 21:37:13 openmandriva-x8664 systemd[1683]: pipewire.service - PipeWire Multimedia Service was skipped because of an unmet condition check (ConditionUser=!root).
Nov 07 21:37:13 openmandriva-x8664 systemd[1683]: pipewire-pulse.service - PipeWire PulseAudio was skipped because of an unmet condition check (ConditionUser=!@system).
Nov 07 21:55:35 openmandriva-x8664 systemd[4411]: pipewire-pulse.socket - PipeWire PulseAudio was skipped because of an unmet condition check (ConditionUser=!root).
Nov 07 21:55:35 openmandriva-x8664 systemd[4411]: pipewire.socket - PipeWire Multimedia System Sockets was skipped because of an unmet condition check (ConditionUser=!root).
Nov 07 21:55:36 openmandriva-x8664 systemd[4411]: pipewire.service - PipeWire Multimedia Service was skipped because of an unmet condition check (ConditionUser=!root).
Nov 07 21:55:36 openmandriva-x8664 systemd[4411]: pipewire-pulse.service - PipeWire PulseAudio was skipped because of an unmet condition check (ConditionUser=!@system).
5

This is not a dmesg from your system. It looks like a spec sheet for the audio card you are using. We need to see any kernel modules not loading or other issues.

6

I have just upgraded by https://forum.openmandriva.org/t/rome-major-upgrade-november-2025/8375

No change. You can see alsa-info output here http://alsa-project.org/db/?f=44a33b60d552da883eec6ac28710351b3f408c13

7

dmesg20251111.txt (92.7 kB)
It is the file after my upgrade.

[mila@openmandriva-x8664 ~]$ uname -a
Linux openmandriva-x8664 6.17.7-desktop-1omv2590 #1 SMP PREEMPT_DYNAMIC Mon Nov  3 02:44:33 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
8

dmesg | grep audio

9 
[mila@openmandriva-x8664 ~]$ dmesg | grep audio
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3: SoundWire enabled on CannonLake+ platform, using SOF driver
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3: enabling device (0000 -> 0002)
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if 0x040380
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3: bound 0000:00:02.0 (ops intel_audio_component_bind_ops [i915])
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3: use msi interrupt mode
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3: hda codecs found, mask 4
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3: NHLT device BT(0) detected, ssp_mask 0x4
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3: BT link detected in NHLT tables: 0x4
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3: DMICs detected in NHLT tables: 0
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3: Firmware paths/files for ipc type 1:
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3:  Firmware file:     intel/sof-ipc4/arl/sof-arl.ri
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3:  Firmware lib path: intel/sof-ipc4-lib/arl
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3:  Topology file:     intel/sof-ace-tplg/sof-arl-cs42l43-l0.tplg
[Thu Nov 13 21:17:12 2025] sof-audio-pci-intel-mtl 0000:00:1f.3: Loaded firmware library: ADSPFW, version: 2.13.0.1
[Thu Nov 13 21:17:13 2025] sof-audio-pci-intel-mtl 0000:00:1f.3: Booted firmware version: 2.13.0.1
10

I have just tried to switch to the pulseaudio-server.

$ sudo dnf remove pipewire-pulse ; sudo dnf install pulseaudio-server

No change. Still no audio.

11

Then it’s a kmod problem.

12
13

The upstream SoF issue with the fix commit chain: No sound from speakers on Dell XPS 14 on kernel 6.16 · Issue #5515 · thesofproject/linux · GitHub

Those fixes were merged in kernel 6.17:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.17.y&id=28edfaa10ca1b370b1a27fde632000d35c43402c

and they were backported to 6.16.9:

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.16.9&id=8276c97dccee0c0585b3e91b1206970b2e07c2c8

They should be in 6.17.7 which Mila has upgraded to:

Unless there is another issue here, kmod, alsa.conf related or something else.

Perhaps undoing any changes made to the /etc/modprobe.d/alsa.conf file to reset it to its prior state combined with the kernel upgrade could be worth trying.

14

I have the newest kernel and nothing set in the alsa.conf file.
Still no audio. What else should I try? Should I try any cooker kernel?

[mila@openmandriva-x8664 ~]$ cat /etc/modprobe.d/alsa.conf 
# Force the DSP driver for Intel DSP (0=auto, 1=legacy, 2=SST, 3=SOF, 4=AVS)
# 20250911 HDMI only http://alsa-project.org/db/?f=de32e211f9b5709a4646ce8ed0bf8f461e696741 options snd-intel-dspcfg dsp_driver=1
# 20250911 BAD http://alsa-project.org/db/?f=b9652e0976db0ea73385aaa92db62a8f63dee48a options snd-intel-dspcfg dsp_driver=2
# 20250911 BAD http://alsa-project.org/db/?f=e7418d3054fbc991c3dd711b2357cb2e3a2886c1 options snd-intel-dspcfg dsp_driver=3
# 20250911 BAD http://alsa-project.org/db/?f=5e8de82221f381614429b6f2ee9bf3ac85e570a5 options snd-intel-dspcfg dsp_driver=4

# options snd-intel-dspcfg dsp_driver=1
# options snd-intel-dspcfg dsp_driver=3

# options snd-hda-intel model=1028:0cf5

# options snd-hda-intel model=generic

# options snd-hda-intel model=laptop
# options snd-hda-intel model=mobile
# options snd-hda-intel model=dell
# BAD options snd-hda-intel model=8086:7728
# blacklist snd_hda_intel

# options snd-hda-intel probe_mask=1
# options snd-hda-intel position_fix=4
# options snd_sof disable_function_topology=1

[mila@openmandriva-x8664 ~]$ uname -a
Linux openmandriva-x8664 6.17.7-desktop-1omv2590 #1 SMP PREEMPT_DYNAMIC Mon Nov  3 02:44:33 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
15

I have just tried the new kernel from the cooker repository.
https://file-store.openmandriva.org/api/v1/file_stores/fcabce1bfcab724c1a749d3eb624c563c1e546a5

sudo dnf in kernel-desktop-6.17.8-1-omv2590.x86_64.rpm 
uname -a
Linux openmandriva-x8664 6.17.8-desktop-1omv2590 #1 SMP PREEMPT_DYNAMIC Fri Nov 14 01:00:44 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

No progress. See https://alsa-project.org/db/?f=54c8d2068da65fd09de534c35727951f1d4a5e32

Is there any chance to solve the problem with my audio in near future?

16

New kernel, no progress.

uname -a
Linux openmandriva-x8664 6.17.9-desktop-1omv2590 #1 SMP PREEMPT_DYNAMIC Mon Nov 24 22:11:36 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

See http://alsa-project.org/db/?f=d12a88b48f79ee9d91aa3e21964ce906b0c020b7

17

New kernel, no progress.

uname -a
Linux openmandriva-x8664 6.18.0-desktop-1omv2590 #1 SMP PREEMPT_DYNAMIC Tue Dec  2 00:40:54 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

See http://alsa-project.org/db/?f=53477692c7959184c2834aab668e8413ecba51a2

18

New update by https://forum.openmandriva.org/t/upgrade-after-last-night-rome-upgrade-should-be-ok-12-06-25/8527.
No progress.

See http://alsa-project.org/db/?f=f7579f0ffb27b4a0de7dbf8d1aad0162d59534a1

19

New kernel, no progress.

uname -a
Linux openmandriva-x8664 6.18.0-desktop-2omv2590 #1 SMP PREEMPT_DYNAMIC Wed Dec 10 03:54:18 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

See http://alsa-project.org/db/?f=894442b6ee0aa08d5ba824d5b546bd91f8657e04

20

New kernel, no progress.

uname -a
Linux openmandriva-x8664 6.18.1-desktop-1omv2590 #1 SMP PREEMPT_DYNAMIC Sun Dec 14 03:12:11 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

See http://alsa-project.org/db/?f=9b21eb464ffb99dcd42f4ff981061c771935371c