Based on https://bugzilla.kernel.org/show_bug.cgi?id=201251#c164, I generated the skl_hda_dsp_generic-tplg.bin and put it under /lib/firmware for the Intel SST driver. With my own build kernel (SOF and Intel SST all enabled), the dmesg shows that the ALC256 been found as down below. ``` [ 26.615808] snd_soc_skl 0000:00:1f.3: Direct firmware load for 9d71-ACRSYS-ACRPRDCT-2-tplg.bin failed with error -2 [ 26.615813] snd_soc_skl 0000:00:1f.3: tplg fw 9d71-ACRSYS-ACRPRDCT-2-tplg.bin load failed with -2, trying alternative tplg name skl_hda_dsp_generic-tplg.bin [ 26.630399] snd_soc_skl 0000:00:1f.3: ASoC: Parent card not yet available, widget card binding deferred [ 26.687728] debugfs: File 'DMIC01 Rx' in directory 'dapm' already present! [ 26.687997] HDMI HDA Codec ehdaudio0D2: hdac_hdmi_present_sense: disconnect for pin:port 5:0 [ 26.688224] HDMI HDA Codec ehdaudio0D2: hdac_hdmi_present_sense: disconnect for pin:port 6:0 [ 26.688434] HDMI HDA Codec ehdaudio0D2: hdac_hdmi_present_sense: disconnect for pin:port 7:0 [ 26.696721] snd_hda_codec_realtek ehdaudio0D0: autoconfig for ALC256: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker [ 26.696724] snd_hda_codec_realtek ehdaudio0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [ 26.696726] snd_hda_codec_realtek ehdaudio0D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0) [ 26.696727] snd_hda_codec_realtek ehdaudio0D0: mono: mono_out=0x0 [ 26.696728] snd_hda_codec_realtek ehdaudio0D0: inputs: [ 26.696729] snd_hda_codec_realtek ehdaudio0D0: Internal Mic=0x1a [ 26.696730] snd_hda_codec_realtek ehdaudio0D0: Headset Mic=0x19 ``` Now the `aplay -l` and `arecord -l` can show audio interfaces as expected. However, the `pactl list sinks`and `pactl list sources` still gives `Dummy` devices. Thus the Sound Settings display still show `Dummy Output`. We may need to update the pulseausio for this.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1915117 Title: [Regression] Audio card [8086:9d71] not detected after upgrade from linux 5.4 to 5.8 Status in linux package in Ubuntu: Confirmed Bug description: Ubuntu version: 20.10 (updated from 20.04) Kernel: 5.8.0-41-generic #46-Ubuntu Manufacturer: Acer Product Name: Swift SF314-54 BIOS Revision: 1.11 Audio card: Realtek High Definition Audio Multimedia audio controller [0401]: Intel Corporation Sunrise Point-LP HD Audio [8086:9d71] (rev 21) Summary ======= After upgrading from linux kernel 5.4 to 5.8, there is no more sound card available. However, if I select kernel 5.4 in GRUB, the sound card is available. Steps to reproduce ================== 1. Install 20.04 or 20.10 with a kenel 5.4 2. Check that sound output works as excepted (Settings > Sound > Output > Test) 3. Check that `alsa-info` command returns information 4. Upgrade kernel to 5.8 Expected results ================ Sound output still works. Actual results ============== 2. Sound card is available, and sound can be output to the internal speakers. 4. No more sound card detected (Sound Settings display "Dummy Output" in the list of output devices). ProblemType: Bug DistroRelease: Ubuntu 20.10 Package: linux-image-5.8.0-41-generic 5.8.0-41.46 ProcVersionSignature: Ubuntu 5.8.0-41.46-generic 5.8.18 Uname: Linux 5.8.0-41-generic x86_64 ApportVersion: 2.20.11-0ubuntu50.5 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Tue Feb 9 14:42:00 2021 InstallationDate: Installed on 2019-01-20 (751 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) MachineType: Acer Swift SF314-54 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-41-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash mem_sleep_default=deep vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.8.0-41-generic N/A linux-backports-modules-5.8.0-41-generic N/A linux-firmware 1.190.3 SourcePackage: linux UpgradeStatus: Upgraded to groovy on 2021-02-03 (5 days ago) dmi.bios.date: 11/21/2018 dmi.bios.release: 1.11 dmi.bios.vendor: Insyde Corp. dmi.bios.version: V1.11 dmi.board.name: Strongbow_KL dmi.board.vendor: KBL dmi.board.version: V1.11 dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V1.11 dmi.ec.firmware.release: 1.6 dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.11:bd11/21/2018:br1.11:efr1.6:svnAcer:pnSwiftSF314-54:pvrV1.11:rvnKBL:rnStrongbow_KL:rvrV1.11:cvnAcer:ct10:cvrV1.11: dmi.product.family: Swift 3 dmi.product.name: Swift SF314-54 dmi.product.sku: 0000000000000000 dmi.product.version: V1.11 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1915117/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp