I just upgraded my ubuntu 19.10 and suddenly lost my sound card. Kernel was updated from 5.3.0-40 to 5.3.0-42. This switched the sound driver from snd_hda to snd_soc which sounds very promising but it seems a firmware is missing and it is unclear where we are supposed to get the firmware from.
``` dmesg | grep -C1 -E 'ALSA|HDA|HDMI|sof|snd[_-]|sound|hda.codec|hda.intel' [ 0.261825] ACPI: Added _OSI(Linux-Dell-Video) [ 0.261827] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 0.261828] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) -- [ 1.801143] integrity: Loading X.509 certificate: UEFI:db [ 1.801169] integrity: Loaded X.509 cert 'Microsoft Corporation UEFI CA 2011: 13adbf4309bd82709c8cd54f316ed522988a1bd4' [ 1.801169] integrity: Loading X.509 certificate: UEFI:db [ 1.801179] integrity: Loaded X.509 cert 'Microsoft Windows Production PCA 2011: a92902398e16c49778cd90f99e4f9ae17c55af53' [ 1.801839] ima: Allocated hash algorithm: sha1 -- [ 10.292817] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input11 [ 10.292946] snd_hda_intel 0000:00:1f.3: Digital mics found on Skylake+ platform, aborting probe [ 10.295854] iwlwifi 0000:00:14.3: Found debug destination: EXTERNAL_DRAM -- [ 10.413077] iwlwifi 0000:00:14.3: base HW address: dc:71:96:b9:0a:d2 [ 10.416236] snd_soc_skl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040380 [ 10.433330] snd_soc_skl 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) [ 10.482071] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs' -- [ 10.566796] iwlwifi 0000:00:14.3 wlp0s20f3: renamed from wlan0 [ 10.594049] HDMI HDA Codec ehdaudio0D2: Max dais supported: 3 [ 10.596829] snd_soc_skl 0000:00:1f.3: Direct firmware load for 9dc8-LENOVO-TP-N2H-4752-tplg.bin failed with error -2 [ 10.596831] snd_soc_skl 0000:00:1f.3: tplg fw 9dc8-LENOVO-TP-N2H-4752-tplg.bin load failed with -2, falling back to dfw_sst.bin [ 10.596845] snd_soc_skl 0000:00:1f.3: Direct firmware load for dfw_sst.bin failed with error -2 [ 10.596846] snd_soc_skl 0000:00:1f.3: Fallback tplg fw dfw_sst.bin load failed with -2 [ 10.596849] snd_soc_skl 0000:00:1f.3: Failed to init topology! [ 10.596850] snd_soc_skl 0000:00:1f.3: ASoC: failed to probe component -2 [ 10.596859] skl_hda_dsp_generic skl_hda_dsp_generic: ASoC: failed to instantiate card -2 ``` other people who encounter issues with 5.3.0-42 : - https://askubuntu.com/questions/1218058/ubuntu-19-10-audio-driver-issue - https://askubuntu.com/questions/1217949/ubuntu-no-sound-dummy-output-and-no-sound-card-detected I apologize if this is the wrong place/issue, this is the closest I could find in the tracker -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1864061 Title: PCI/internal sound card not detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1864061/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs