@pega-1

Ok - perfect suggestion! That's it - I tested two sii3114 SATA RAID controllers (but both are from the same vendor) and you were right! MorphOS indeed disables VIA sound with this controllers in the PCI slot. Without controller, everything's fine, perfect sound output!

Thank you very much for this tip, I would never have guessed that this might be the problem!

But what now? I need this controllers for my big SATA harddisks.

- Are there known-to-work SATA controllers for the Pegasos II that doesn't make MorphOS disable the VIA sound system? It should be supported by AmigaOS4.1 as well. Any suggestions?

- Or is it possible to attach my SATA disks to the Pegasos II ATA on-board via some kind of adaptor? Not ideal in regards of speed, but a stable full-functional system is more important.

- Or should I post some informations from my SATA controller - so it might be supported/work-arounded in some future MorphOS version?