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    No Audio After Today's Update to 5.3.0-42

    Hi

    Updated Kubuntu using `Konsole` and `apt` while logged in.
    Then rebooted because it was Kernel update. (So I updated from 5.3.0-40 to 5.3.0-42)
    During boot I noticed some errors and finally when it booted, there was not audio, only "Dummy Card"

    In GRUB, I can go back to 5.3.0-40 and audio works fine.

    `dmesg` on 5.3.0-42:
    https://paste.debian.net/1135127/

    `dmesg` on 5.3.0-40:
    https://paste.debian.net/1135128/

    Aside from old errors and TPM stuff, here are the new errors I see:
    [ 5.234609] snd_soc_skl 0000:00:1f.3: Fallback tplg fw dfw_sst.bin load failed with -2
    [ 5.235363] snd_soc_skl 0000:00:1f.3: Failed to init topology!
    [ 5.236082] snd_soc_skl 0000:00:1f.3: ASoC: failed to probe component -2
    [ 5.236870] skl_hda_dsp_generic skl_hda_dsp_generic: ASoC: failed to instantiate card -2


    Hardware info while in 5.3.0-42:
    System:
    Kernel: 5.3.0-42-generic x86_64 bits: 64 compiler: gcc v: 9.2.1
    parameters: BOOT_IMAGE=/boot/vmlinuz-5.3.0-42-generic
    root=UUID=2fa49912-7556-4f98-b6d9-096978199d64 ro intel_iommu=on
    Console: N/A wm: kwin_x11 dm: SDDM Distro: Ubuntu 19.10 (Eoan Ermine)
    Machine:
    Type: Laptop System: HP product: HP ENVY Laptop 13-aq0xxx
    v: Type1ProductConfigId serial: <filter> Chassis: type: 10 serial: <filter>
    Mobo: HP model: 85E3 v: 29.26 serial: <filter> UEFI: Insyde v: F.07
    date: 08/01/2019
    Battery:
    ID-1: BAT0 charge: 52.4 Wh condition: 52.4/52.4 Wh (100%) volts: 17.3/15.4
    model: 333-2B-49-A KC04053XL type: Li-ion serial: <filter> status: Full
    CPU:
    Topology: Quad Core model: Intel Core i7-8565U bits: 64 type: MT MCP
    arch: Kaby Lake family: 6 model-id: 8E (142) stepping: C (12) microcode: CA
    L2 cache: 8192 KiB
    flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
    bogomips: 31999
    Speed: 802 MHz min/max: 400/4600 MHz Core speeds (MHz): 1: 800 2: 800 3: 800
    4: 800 5: 800 6: 800 7: 800 8: 800
    Vulnerabilities: Type: itlb_multihit status: KVM: Split huge pages
    Type: l1tf status: Not affected
    Type: mds status: Not affected
    Type: meltdown status: Not affected
    Type: spec_store_bypass
    mitigation: Speculative Store Bypass disabled via prctl and seccomp
    Type: spectre_v1
    mitigation: usercopy/swapgs barriers and __user pointer sanitization
    Type: spectre_v2 mitigation: Enhanced IBRS, IBPB: conditional, RSB filling
    Type: tsx_async_abort status: Not affected
    Graphics:
    Device-1: Intel UHD Graphics 620 vendor: Hewlett-Packard driver: i915
    v: kernel bus ID: 00:02.0 chip ID: 8086:3ea0
    Device-2: NVIDIA GP108BM [GeForce MX250] driver: N/A bus ID: 01:00.0
    chip ID: 10de:1d52
    Display: server: X.Org 1.20.5 driver: modesetting unloaded: fbdev,vesa
    compositor: kwin_x11 resolution: 1920x1080~60Hz
    OpenGL: renderer: Mesa DRI Intel UHD Graphics (Whiskey Lake 3x8 GT2)
    v: 4.5 Mesa 19.2.8 compat-v: 3.0 direct render: Yes
    Audio:
    Device-1: Intel Cannon Point-LP High Definition Audio vendor: Hewlett-Packard
    driver: snd_soc_skl v: kernel bus ID: 00:1f.3 chip ID: 8086:9dc8
    Sound Server: ALSA v: k5.3.0-42-generic
    Network:
    Device-1: Intel Cannon Point-LP CNVi [Wireless-AC] driver: iwlwifi v: kernel
    port: 4000 bus ID: 00:14.3 chip ID: 8086:9df0
    IF: wlo1 state: up mac: <filter>
    IF-ID-1: virbr0 state: down mac: <filter>
    IF-ID-2: virbr0-nic state: down mac: <filter>
    Drives:
    Local Storage: total: 953.87 GiB used: 66.78 GiB (7.0%)
    ID-1: /dev/nvme0n1 vendor: Intel model: SSDPEKNW010T8H size: 953.87 GiB
    block size: physical: 512 B logical: 512 B speed: 31.6 Gb/s lanes: 4
    serial: <filter> rev: HPS0 scheme: GPT
    RAID:
    Hardware-1: Intel 82801 Mobile SATA Controller [RAID mode] driver: ahci v: 3.0
    port: 4060 bus ID: 00:17.0 chip ID: 8086.282a rev: 30
    Partition:
    ID-1: / raw size: 500.01 GiB size: 491.16 GiB (98.23%) used: 66.71 GiB (13.6%)
    fs: ext4 block size: 4096 B dev: /dev/nvme0n1p5
    Sensors:
    System Temperatures: cpu: 47.0 C mobo: 37.0 C
    Fan Speeds (RPM): N/A
    Info:
    Processes: 326 Uptime: 20m Memory: 15.44 GiB used: 2.24 GiB (14.5%)
    Init: systemd v: 242 runlevel: 5 Compilers: gcc: 9.2.1 alt: 9 clang: 9.0.0-2
    Shell: bash (sudo) v: 5.0.3 running in: konsole inxi: 3.0.36



    IDK where to submit this bug... I hope this is the correct place.

    EDIT1:
    Apparently some people are also experiencing this issue:
    https://forums.linuxmint.com/viewtopic.php?t=314323
    https://askubuntu.com/questions/1217...tooth-connecti
    https://bugs.launchpad.net/ubuntu/+s...r/+bug/1867774
    But it should be fixed in 5.3.0-43 according to Hui Wang on Ubuntu Launchpad website:
    "-42 has a regression on sof audio driver, please wait for the coming -43 kernel."
    Last edited by Alvat; Mar 17, 2020, 10:51 PM.
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