@Chris thanks for the heads up! Still "Dummy output" in the Sound Settings. Here are the steps I followed:
1. Downdloaded and installed the *.deb you pointed to: $ sudo dpkg -i *.deb 2. Copied the Intel SST firmware binary file to /lib/firmware: $ sudo cp skl_hda_dsp_generic-tplg.bin /lib/firmware/ 3. Rebooted, disabled Secure Boot and selected the new kernel (5.10.0-1025-oem). In dmesg, I see the following: $ dmesg | grep snd [ 10.027748] snd_hda_intel 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100 [ 10.027752] snd_hda_intel 0000:00:1f.3: Digital mics found on Skylake+ platform, using SST driver [ 10.051128] snd_soc_skl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100 [ 10.051132] snd_soc_skl 0000:00:1f.3: Digital mics found on Skylake+ platform, using SST driver [ 10.051879] snd_soc_skl 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) [ 10.103255] snd_soc_skl 0000:00:1f.3: Direct firmware load for 9d71-ACRSYS-ACRPRDCT-2-tplg.bin failed with error -2 [ 10.103261] 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 [ 10.104296] snd_soc_skl 0000:00:1f.3: ASoC: Parent card not yet available, widget card binding deferred [ 10.129385] snd_hda_codec_realtek ehdaudio0D0: autoconfig for ALC256: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker [ 10.129388] snd_hda_codec_realtek ehdaudio0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [ 10.129389] snd_hda_codec_realtek ehdaudio0D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0) [ 10.129390] snd_hda_codec_realtek ehdaudio0D0: mono: mono_out=0x0 [ 10.129390] snd_hda_codec_realtek ehdaudio0D0: inputs: [ 10.129392] snd_hda_codec_realtek ehdaudio0D0: Internal Mic=0x1a [ 10.129393] snd_hda_codec_realtek ehdaudio0D0: Headset Mic=0x19 Please see the attached log for full dmesg. ** Attachment added: "dmesg.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1915117/+attachment/5495892/+files/dmesg.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1915117 Title: [Regression] Audio card [8086:9d71] not detected after upgrade from linux 5.4 to 5.8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1915117/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
