no sound on my old ice1712 based sound card

[mo]

Hello, since a few days, i have no sound on my old hoontech dsp 24 sound card. I'm on Ubuntu mate 22.04 but the problem occurs also with several debian live cd's.

I don'tt have the "digital mixer to ac97" in alsamixer any more.

Dmesg | grep snd shows this :

snd_ice1712 0000:04:01.0: enabling device (0000 -> 0001)
[ 29.798438] snd_ice1712 0000:04:01.0: Consumer PCM code does not work well at the moment --jk
[ 31.648695] snd_ice1712 0000:04:01.0: AC'97 0 does not respond - RESET
[ 31.893223] snd_ice1712 0000:04:01.0: AC'97 0 access is not valid [0xffffffff], removing mixer.
[ 31.893292] snd_ice1712 0000:04:01.0: cannot initialize ac97 for consumer, skipped

Any help would be appreciated.

Many thanks in advance