apport information
** Tags added: apport-collected resolute wayland-session
** Description changed:
Issue Description:
Internal speakers are completely silent on an ASUS ExpertCenter laptop with
Intel Raptor Lake platform using the Sound Open Firmware (SOF) driver and
Realtek ALC256 codec.
Hardware & System Info:
- Model: ASUS ExpertCenter (Intel Raptor Lake)
- Audio Codec: Realtek ALC256
- OS: Ubuntu Linux 26.04
- Sound Server: PipeWire / WirePlumber
- Low-level driver: snd-sof-pci-intel-tgl
Verification & Troubleshooting Performed:
1. Hardware functional test: Audio and speakers operate correctly during BIOS
hardware diagnostics (rules out physical hardware failure).
2. Volume / Mute checks: ALSA Mixer (`alsamixer`) and PipeWire show Master,
Speaker, and PCM channels unmuted (`00`) and set to appropriate volume levels.
3. Troubleshooting attempts:
- Modifying module parameters (`options snd-intel-dspcfg dsp_driver=1`)
- Disabling Fast Boot in BIOS
- Updating to the latest mainline kernel
- Overriding pin configuration via `hdajackretask`
None of these attempts produced audio output through the internal speakers.
Diagnostic Log Attached:
I have attached the full diagnostic output generated by `alsa-info.sh`
(containing ACPI tables, pin configurations, and SOF driver dmesg logs).
Request:
Please review the attached alsa-info log to include the proper pin-mapping
quirk/patch for this ASUS ExpertCenter model in future kernel/firmware updates.
+ ---
+ ProblemType: Bug
+ ApportVersion: 2.34.1-0ubuntu0.1
+ Architecture: amd64
+ AudioDevicesInUse:
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC0: marc 2070 F.... pipewire
+ marc 2091 F.... wireplumber
+ /dev/snd/seq: marc 2070 F.... pipewire
+ CasperMD5CheckResult: pass
+ CurrentDesktop: ubuntu:GNOME
+ DistroRelease: Ubuntu 26.04
+ InstallationDate: Installed on 2026-10-15 (2 days ago)
+ InstallationMedia: Ubuntu 26.04.1 LTS "Resolute Raccoon" - Release amd64
(20260826)
+ MachineType: ASUSTeK COMPUTER INC. ASUS EXPERTCENTER P440VA_V440VA
+ Package: alsa-driver (not installed)
+ ProcEnviron:
+ LANG=ca_ES.UTF-8
+ PATH=(custom, no user)
+ SHELL=/bin/bash
+ TERM=xterm-256color
+ XDG_RUNTIME_DIR=<set>
+ PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
+ Tags: resolute wayland-session
+ Uname: Linux 7.2.6-070206-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm cdrom dip lpadmin lxd plugdev sudo users
+ _MarkForUpload: True
+ dmi.bios.date: 08/05/2025
+ dmi.bios.release: 5.32
+ dmi.bios.vendor: ASUSTeK COMPUTER INC. (Licensed by AMI, LLC.)
+ dmi.bios.version: P440VA.303
+ dmi.board.asset.tag: ATN12345678901234567
+ dmi.board.name: P440VA
+ dmi.board.vendor: ASUSTeK COMPUTER INC.
+ dmi.board.version: 1.0
+ dmi.chassis.asset.tag: No Asset Tag
+ dmi.chassis.type: 13
+ dmi.chassis.vendor: ASUSTeK COMPUTER INC.
+ dmi.chassis.version: 1.0
+ dmi.ec.firmware.release: 3.3
+ dmi.modalias:
dmi:bvnASUSTeKCOMPUTERINC.(LicensedbyAMI,LLC.):bvrP440VA.303:bd08/05/2025:br5.32:efr3.3:svnASUSTeKCOMPUTERINC.:pnASUSEXPERTCENTERP440VA_V440VA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnP440VA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct13:cvr1.0:sku:pfaASUSEXPERTCENTER:
+ dmi.product.family: ASUS EXPERTCENTER
+ dmi.product.name: ASUS EXPERTCENTER P440VA_V440VA
+ dmi.product.version: 1.0
+ dmi.sys.vendor: ASUSTeK COMPUTER INC.
** Attachment added: "AlsaInfo.txt"
https://bugs.launchpad.net/bugs/2171268/+attachment/6010049/+files/AlsaInfo.txt
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https://bugs.launchpad.net/bugs/2171268
Title:
[ASUS ExpertCenter / Raptor Lake] Internal speakers produce no sound
(Realtek ALC256 / SOF driver)
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