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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1888992 Title: [Realtek ALC892, Green Headphone Out, Front] Not detecting/switching to front jack after plugging in headphones To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1888992/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs