I did a bit more research and the problem seems to be related to the recent cirrus audio codec changes. At least dmesg between the non- working and working kernel shows the following diff
<pre> Bluetooth: hci0: Found device firmware: intel/ibt-19-0-0.sfi snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002) snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) -snd_hda_codec_cs8409 hdaudioC0D0: autoconfig for CS8409: line_outs=1 (0x2c/0x0/0x0/0x0/0x0) type:speaker -snd_hda_codec_cs8409 hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) -snd_hda_codec_cs8409 hdaudioC0D0: hp_outs=1 (0x24/0x0/0x0/0x0/0x0) -snd_hda_codec_cs8409 hdaudioC0D0: mono: mono_out=0x0 -snd_hda_codec_cs8409 hdaudioC0D0: inputs: -snd_hda_codec_cs8409 hdaudioC0D0: Internal Mic=0x44 -snd_hda_codec_cs8409 hdaudioC0D0: Mic=0x34 +snd_hda_codec_cirrus hdaudioC0D0: autoconfig for CS8409: line_outs=1 (0x2c/0x0/0x0/0x0/0x0) type:speaker +snd_hda_codec_cirrus hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) +snd_hda_codec_cirrus hdaudioC0D0: hp_outs=1 (0x24/0x0/0x0/0x0/0x0) +snd_hda_codec_cirrus hdaudioC0D0: mono: mono_out=0x0 +snd_hda_codec_cirrus hdaudioC0D0: inputs: +snd_hda_codec_cirrus hdaudioC0D0: Internal Mic=0x44 +snd_hda_codec_cirrus hdaudioC0D0: Mic=0x34 iwlwifi 0000:00:14.3: base HW address: f0:77:c3:1d:ee:c1 iwlwifi 0000:00:14.3 wlp0s20f3: renamed from wlan0 </pre> -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1950900 Title: Internal Speakers on DELL Inspirion broken with kernel 5.13, works with kernel 5.11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1950900/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
