[Bug 2171268] Re: [ASUS ExpertCenter / Raptor Lake] Internal speakers produce no sound (Realtek ALC256 / SOF driver)

snd_hda_intel: dmic_detect=0 snd_intel_dspcfg: dsp_driver=1 snd_hda_intel: patch=hda-jack-retask.fw,hda-jack-retask.fw,hda-jack-retask.fw,hda-jack-retask.fw ------------------------------------------ Please remove ^these customizations, and any others you've made to fix this issue, reboot and run the following command to gather relevant logs: apport-collect 2171268 ** Package changed: linux (Ubuntu) => alsa-driver (Ubuntu) ** Changed in: alsa-driver (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2171268 Title: [ASUS ExpertCenter / Raptor Lake] Internal speakers produce no sound (Realtek ALC256 / SOF driver) Status in alsa-driver package in Ubuntu: Incomplete Bug description: 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/2171268/+subscriptions