Comment 14 for bug 1888992

Last known working kernel: 5.4.0-33, next installable Ubuntu kernel 5.4.0-37 introduces the bug.

I have tested that saving "options snd_hda_intel power_save=0" to a file under /etc/modprobe.d and rebooting to a kernel from -37 onwards is a valid workaround.

Lines mentioning ALSA from http://changelogs.ubuntu.com/changelogs/pool/main/l/linux/linux_5.4.0-37.41/changelog:

  * Focal update: v5.4.40 upstream stable release (LP: #1878040)
    - ALSA: hda: Match both PCI ID and SSID for driver blacklist

  * Focal update: v5.4.39 upstream stable release (LP: #1877592)
    - ALSA: hda/realtek - Two front mics on a Lenovo ThinkCenter
    - ALSA: usb-audio: Correct a typo of NuPrime DAC-10 USB ID
    - ALSA: hda/hdmi: fix without unlocked before return
    - ALSA: line6: Fix POD HD500 audio playback
    - ALSA: pcm: oss: Place the plugin buffer overflow checks correctly
    - ALSA: opti9xx: shut up gcc-10 range warning

  * Focal update: v5.4.37 upstream stable release (LP: #1876765)
    - ALSA: hda: Release resources at error in delayed probe
    - ALSA: hda: Keep the controller initialization even if no codecs found
    - ALSA: hda: Explicitly permit using autosuspend if runtime PM is supported
    - ALSA: hda: call runtime_allow() for all hda controllers

  * Focal update: v5.4.36 upstream stable release (LP: #1876361)
    - ALSA: usb-audio: Add Pioneer DJ DJM-250MK2 quirk
    - ALSA: hda: Remove ASUS ROG Zenith from the blacklist
    - ALSA: usb-audio: Add static mapping table for ALC1220-VB-based mobos
    - ALSA: usb-audio: Add connector notifier delegation
    - ALSA: usx2y: Fix potential NULL dereference
    - ALSA: hda/realtek - Fix unexpected init_amp override
    - ALSA: hda/realtek - Add new codec supported for ALC245
    - ALSA: hda/hdmi: Add module option to disable audio component binding
    - ALSA: usb-audio: Fix usb audio refcnt leak when getting spdif
    - ALSA: usb-audio: Filter out unsupported sample rates on Focusrite devices

  * Focal update: v5.4.35 upstream stable release (LP: #1875660)
    - ALSA: hda: Honor PM disablement in PM freeze and thaw_noirq ops
    - ALSA: hda: Don't release card at firmware loading error

  * Support DMIC micmute LED on HP platforms (LP: #1876859)
    - ALSA: hda/realtek - Introduce polarity for micmute LED GPIO
    - ALSA: hda/realtek - Enable micmute LED on and HP system
    - ALSA: hda/realtek - Add LED class support for micmute LED
    - ALSA: hda/realtek - Fix unused variable warning w/o
      CONFIG_LEDS_TRIGGER_AUDIO

  * alsa/sof: kernel oops on the machine without Intel hdmi audio codec (a
    regression in the asoc machine driver) (LP: #1874359)
    - SAUCE: ASoC: intel/skl/hda - fix oops on systems without i915 audio codec