No sound from Realtek ALC256

Hi,

i have nice mini computer based on amp APU.
Everything works fine except sound.
Here is a output of the alsa-info.sh script
http://alsa-project.org/db/?f=62a3b80e0c6c1851fdca564cb7511c6bffb2f46f
alsamixer shows the output, but it doesn’t play a sound at all, even the card is present:
inux:~ # aplay -ll
**** List of PLAYBACK Hardware Devices ****
card 0: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Generic_1 [HD-Audio Generic], device 0: ALC256 Analog [ALC256 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0

But, after switching to windows 10, where the card is working well and reboot to opensuse, the sound card is fully working.
It looks like, it can’t be fully initialised in opensuse.

any hint?
(the card has only one jack plug, and can be used as input and as output.

best regards

K.

Found solution.
It is a bug already reported related to pulseaudio,
Pulseaudio is not started automatically.
After killing pulseaudio process and run pulseaudio -D sound is running well.
Add to 50-sound.conf following parameters:
options snd-hda-intel beep_mode=1 dmic_detect=1 model=auto