https://bugs.freedesktop.org/show_bug.cgi?id=84017
--- Comment #7 from Alex Deucher agd5f@yahoo.com --- (In reply to comment #5)
The mainboard a MicroStar MS-7318. Based on the information on http://www.medion.com/de/service/_lightbox/treiber.php?msn=10010251 I think it is a VIA Hyperion Pro.
I strongly suspect the VIA chipset has broken MSI support and probably needs a quirk to disable it. I don't see any MSIs getting triggered:
64: 0 0 PCI-MSI-edge aerdrv, PCIe PME, pciehp 65: 0 0 PCI-MSI-edge aerdrv, PCIe PME, pciehp 66: 0 0 PCI-MSI-edge aerdrv, PCIe PME 67: 0 0 PCI-MSI-edge aerdrv, PCIe PME 68: 0 0 PCI-MSI-edge snd_hda_intel 69: 0 0 PCI-MSI-edge snd_hda_intel
Does sound work ok?