For the sake of testing, I checked on the latest Impish daily image,
with kernel 5.11.0-18-generic. Same problem. dmesg attached. Alsa and
PulseAudio don't detect any sound card, even though in dmesg we can see:
$ sudo dmesg | grep -i snd
[ 26.169850] snd_hda_intel 0000:00:1f.3: DSP detected with PCI
class/subclass/prog-if info 0x040100
[ 26.169858] snd_hda_intel 0000:00:1f.3: Digital mics found on Skylake+
platform, using SST driver
$ aplay -l
aplay: device_list:276: no soundcards found...
ubuntu@ubuntu:~$ pactl list cards
ubuntu@ubuntu:~$ pactl list sources
Source #0
State: SUSPENDED
Name: auto_null.monitor
Description: Monitor of Dummy Output
Driver: module-null-sink.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 13
Mute: no
Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100%
/ 0.00 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor of Sink: auto_null
Latency: 0 usec, configured 0 usec
Flags: DECIBEL_VOLUME LATENCY
Properties:
device.description = "Monitor of Dummy Output"
device.class = "monitor"
device.icon_name = "audio-input-microphone"
Formats:
pcm
ubuntu@ubuntu:~$ pactl list sinks
Sink #0
State: SUSPENDED
Name: auto_null
Description: Dummy Output
Driver: module-null-sink.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 13
Mute: no
Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100%
/ 0.00 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor Source: auto_null.monitor
Latency: 0 usec, configured 0 usec
Flags: DECIBEL_VOLUME LATENCY SET_FORMATS
Properties:
device.description = "Dummy Output"
device.class = "abstract"
device.icon_name = "audio-card"
Formats:
pcm
** Attachment added: "dmesg_kernel_5.11.0-18-generic.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1915117/+attachment/5507056/+files/dmesg_kernel_5.11.0-18-generic.log
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https://bugs.launchpad.net/bugs/1915117
Title:
[Regression] Audio card [8086:9d71] not detected after upgrade from
linux 5.4 to 5.8
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