'alsactl restore' failed .. "unknown hardware"

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I have been getting

'alsactl restore' failed with error message "Unknown hardware ..."

and

"Saved ALSA mixer settings detected: aumix will not touch mixer ... (warning)"

Running a debug procedure ..

cat /proc/asound/version

Advanced Linux Sound Architecture Driver Version 1.0.20.

cat /proc/asound/cards

  0 [SI7018         ]: SI7018 - SiS SI7018
                       SiS SI7018 PCI Audio at 0xd800, irq 11
  1 [UART           ]: MPU-401 UART - MPU-401 UART
		       MPU-401 UART at 0x300, irq 10

lsmod | grep snd

snd_cs4236             27180  0 
snd_trident            30052  0 
snd_wss_lib            23512  1 snd_cs4236
snd_opl3_lib            9136  1 snd_cs4236
snd_ac97_codec         91304  1 snd_trident
snd_hwdep               6032  1 snd_opl3_lib
ac97_bus                1456  1 snd_ac97_codec
snd_pcm_oss            31912  0 
snd_mixer_oss          12300  1 snd_pcm_oss
snd_pcm                60916  5 snd_cs4236,snd_trident,snd_wss_lib,snd_ac97_codec,snd_pcm_oss
snd_page_alloc          8156  3 snd_trident,snd_wss_lib,snd_pcm
snd_mpu401              5924  0 
snd_util_mem            3876  1 snd_trident
snd_mpu401_uart         6124  3 snd_cs4236,snd_trident,snd_mpu401
snd_seq_midi            5680  0 
snd_rawmidi            18568  2 snd_mpu401_uart,snd_seq_midi
snd_seq_midi_event      6300  1 snd_seq_midi
snd_seq                41536  2 snd_seq_midi,snd_seq_midi_event
snd_timer              17196  4 snd_wss_lib,snd_opl3_lib,snd_pcm,snd_seq
snd_seq_device          6124  4 snd_opl3_lib,snd_seq_midi,snd_rawmidi,snd_seq
gameport               10008  4 snd_trident,ns558
snd                    48364  15 snd_cs4236,snd_trident,snd_wss_lib,snd_opl3_lib,snd_ac97_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_mpu401,snd_mpu401_uart,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore               5852  1 snd

cat /etc/modprobe.d/sound.conf

cat: /etc/modprobe.d/sound.conf: No such file or directory

cat /etc/modprobe.d/sound

cat: /etc/modprobe.d/sound: No such file or directory

cat /etc/modules | grep snd

[no response]

Any constructive ideas to get sound working in this system
will be appreciated.

Regards,

Adam Bogacki,
afb@xxxxxxxxxxxxxxx


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