[Bug 2156867] Re: [SRU]Enable Realtek ALC287 + Cirrus CS35L56 Audio for Lenovo Yoga Pro 7

** Changed in: linux (Ubuntu Stonking) Status: New => In Progress ** Changed in: linux (Ubuntu Stonking) Assignee: (unassigned) => Bin Li (binli) -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2156867 Title: [SRU]Enable Realtek ALC287 + Cirrus CS35L56 Audio for Lenovo Yoga Pro 7 Status in HWE Next: In Progress Status in linux package in Ubuntu: In Progress Status in linux-firmware package in Ubuntu: Invalid Status in linux-oem-6.17 package in Ubuntu: Invalid Status in linux-oem-7.0 package in Ubuntu: Invalid Status in linux source package in Noble: Invalid Status in linux-firmware source package in Noble: In Progress Status in linux-oem-6.17 source package in Noble: Fix Committed Status in linux-oem-7.0 source package in Noble: Invalid Status in linux source package in Resolute: In Progress Status in linux-firmware source package in Resolute: In Progress Status in linux-oem-6.17 source package in Resolute: Invalid Status in linux-oem-7.0 source package in Resolute: Fix Committed Status in linux source package in Stonking: In Progress Status in linux-firmware source package in Stonking: Invalid Status in linux-oem-6.17 source package in Stonking: Invalid Status in linux-oem-7.0 source package in Stonking: Invalid Bug description: [ Impact ] Users running Ubuntu on newer Lenovo Yoga Pro 7 laptops experience critical audio subsystem degradation. The three primary failure points are: * Critically Low Speaker Volume: Sound output through the built-in speaker array is barely audible, even when userspace volume sliders are set to 100%. While the host Realtek ALC287 codec initializes, its companion Cirrus Logic CS35L56 smart amplifiers default to an uncalibrated, low-power fallback state ("FIRMWARE_MISSING") because the system lacks their manufacturer-supplied hardware-tuning profiles. * Non-Functional Speaker-Mute Keyboard LED: Pressing the F1 Audio Mute key on the keyboard toggles the stream status within PulseAudio/PipeWire correctly, but the physical amber LED hardware indicator on the keycap fails to illuminate. The software mute state is disconnected from the motherboard's GPIO controller. * Missing/Dead Microphone Array: The system completely fails to register or capture audio via the internal digital microphone array. The default driver stack attempts to locate the DMIC components on a digital sub-link connected directly to the main processor's AMD ACP block, whereas Lenovo routed the microphone hardware channels through the primary Realtek codec pins. [ Fix ] * Kernel Driver Fixes  - fc12cf16df9a ("ASoC: amd: acp: Add DMI quirk for Lenovo Yoga Pro 7 15ASH11") - d0426510a9e1 ("ASoC: amd: acp: add DMI override for ACP70 flag")  - 17065203e1bc ("ALSA: hda/realtek:ALC269 fixup for Yoga Pro 7 15ASH11 mic mute LED")  - 83dca2530fb3 ("ALSA: hda/realtek: ALC269 fixup for Lenovo Yoga Pro 7 15ASH111 audio") * Firmware Environment Fixes  - d33a9c6d7661 ("cirrus: cs35l56: Update firmware for Cirrus Amps for a couple of Lenovo laptops")  - 604cb45fbe6d ("cirrus: cs35l56: Add firmware for Cirrus Amps for some Lenovo laptops")  - cc2cb17f5ed9 ("cirrus: cs35l56: Add firmware for Cirrus Amps for some ASUS laptops")  - 1d57ec2fdc3f ("cirrus: cs35l56: Add firmware for Cirrus Amps for some Lenovo laptops")  - 0c9b82b60972 ("cirrus: Add cs35l56 firmware symlinks for Asus UM5606KA") [ Test Plan ] Install the patched kernel package and updated linux-firmware payload on an affected Lenovo Yoga Pro 7, then reboot to check: 1. Verify Amp Calibration & Speaker Volume:   Play an audio stream at a standard volume level (30–50%). Confirm it produces crisp, loudly scaled audio. 2. Verify Microphone Capture:    Open Ubuntu Settings -> Sound -> Input. Confirm that the ghost "Digital Microphone" tied to the AMD ACP is gone, and a functioning Internal Stereo Microphone device is present.  Speak or tap on the chassis to confirm that the input visualizer bar responds dynamically to incoming audio data. 3 Verify Mute LED and Mic LED Illumination:    Press the physical F1/F4 Mute hotkey. The amber LED light on the keycap must illuminate immediately when muted, and cleanly shut off as soon as the system is unmuted. [ Where problems could occur ] Scope of Regression: Extremely isolated. All changes are heavily guarded behind rigid DMI string check loops inside vendor-specific sub-drivers (AMD ACP matching tables, Realtek HDA quirk lists, and specific sub-hardware ID firmware loading paths). Systems built by other vendors (such as Dell, HP, or ASUS) or other laptop lines will bypass these conditional rules entirely. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2156867/+subscriptions