Sound problems on Ubuntu 18.04 LTS

[Colin Law]

If you boot off a live ubuntu image does the sound work?

Colin

On Tue, 21 Jan 2020 at 04:26, ian <ian at ncsa.jp> wrote:
>
> Hi folks
>
> I'm having problems getting sound on my Ubuntu 18.04 LTS box.
>
> When I look at the Settings > Sound, I see the dreaded 'Dummy output' and no other output devices.
>
> I've looked at various help pages, of which:
> https://askubuntu.com/questions/1180851/sound-card-not-detected-dummy-output-only-on-dell-xps-13-9350
> was the last one.
>
> I'll give a few command outputs which will hopefully give someone a clue of how I can proceed.
>
> 1. user at pc:~$ pacmd list-cards
> 0 card(s) available.
>
> 2. user at pc:~$ aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: MID [HDA Intel MID], device 0: ALC888 Analog [ALC888 Analog]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> card 0: MID [HDA Intel MID], device 1: ALC888 Digital [ALC888 Digital]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
>
> 3. 'alsamixer' shows:
> Card: HDA Intel MID
> Chip: Realtek ALC888
> and all of the volume controls are at 100.
>
> 4. speaker-test does not produce any sound.
>
> 5. aplay -D sysdefault /usr/share/sounds/alsa/Front_Center.wav
>
> 6. user at pc:~$ ps -ef | grep pulse
> lightdm   1674     1  0 11:34 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
> u3496     2147     1  0 12:40 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
> u3496     8049  2574  0 13:13 pts/1    00:00:00 grep --color=auto pulse
>
> 7. user at pc:~~$ lsmod | grep snd
> snd_seq_midi           20480  0
> snd_seq_midi_event     16384  1 snd_seq_midi
> snd_seq                69632  2 snd_seq_midi,snd_seq_midi_event
> snd_rawmidi            36864  1 snd_seq_midi
> snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidi
> snd_hda_codec_realtek   118784  1
> snd_hda_codec_generic    81920  1 snd_hda_codec_realtek
> ledtrig_audio          16384  2 snd_hda_codec_generic,snd_hda_codec_realtek
> snd_hda_intel          49152  4
> snd_hda_codec         131072  3 snd_hda_codec_generic,snd_hda_intel,snd_hda_codec_realtek
> snd_hda_core           90112  4 snd_hda_codec_generic,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
> snd_hwdep              20480  1 snd_hda_codec
> snd_pcm               102400  3 snd_hda_intel,snd_hda_codec,snd_hda_core
> snd_timer              36864  2 snd_seq,snd_pcm
> snd                    86016  18 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
> soundcore              16384  1 snd
>
> 8. user at pc:~$ pulseaudio -k ; pulseaudio -v
> I: [pulseaudio] (alsa-lib)utils.c: could not open configuration file /usr/share/alsa/ucm/HDA Intel MID at 0xfbef4000 irq 28/HDA Intel MID at 0xfbef4000 irq 28.conf
> I: [pulseaudio] (alsa-lib)parser.c: error: could not parse configuration for card HDA Intel MID at 0xfbef4000 irq 28
> I: [pulseaudio] (alsa-lib)utils.c: could not open configuration file /usr/share/alsa/ucm/HDA Intel MID/HDA Intel MID.conf
> I: [pulseaudio] (alsa-lib)parser.c: error: could not parse configuration for card HDA Intel MID
> I: [pulseaudio] (alsa-lib)main.c: error: failed to import HDA Intel MID use case configuration -2
> I: [pulseaudio] alsa-ucm.c: UCM not available for card HDA Intel MID
> I: [pulseaudio] alsa-util.c: Failed to set hardware parameters on plug:hw:0: Invalid argument
> I: [pulseaudio] (alsa-lib)control.c: Invalid CTL front:0
> I: [pulseaudio] alsa-util.c: Unable to attach to mixer front:0: No such file or directory
> I: [pulseaudio] alsa-util.c: Successfully attached to mixer 'hw:0
> (I have the whole log file which I can send if it'll help)
>
> I also tried uninstalling and re-installing various audio components, but nothing makes my soundcard show up and I have no sound.
>
> Any ideas gratefully accepted.
>
> Thanks
>
> ian
>
>
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