Yes, YaST recognized mi sound card wich is Intel, but it shows me two devices:
8 Series/C220 Series Chipset High Definition Audio Controller
Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller
I guess this would be one for my speakers/mic and the other for the HDMI port.
I said that YaST broke my sound config because:
1 - I got no more sound
2 - If I go to the KDE configuration -> Multimedia -> Audio and Video, It shows me a Dummy device instead the Built-in device (Rebooting fixes this)
This happens when I choose any of the initial sound setups in YaST (Quick, Normal, Advanced) also selecting the device and clicking “Reset All” has the same effect.
Changing sound settings in YaST -> no sound (reboot fixes this)
Disabling PulseAudio in YaST + reboot -> no sound
Enabling back PulseAudio + reboot -> sound is back
So check that the correct one is set as default. Try to set the other, maybe this fixes the sound?
The only other option I see is to file a bug report against PulseAudio. http://bugzilla.opensuse.org/ (same username/password as here)
I do remember one not too long ago, where this was fixed for that particular sound card IIRC.