[UPDATE Jan 28, 2014] This problem has been traced to the BIOS implementation of IOMMU on my Gigabyte F2A85X-UP4 motherboard, BIOS ver. F4
Disabling the IOMMU BIOS setting allows the Xonar to function, although I am still experiencing audio bugs. It is also not clear if the IOMMU bug is a problem with Mint or a problem with the BIOS.
See my most recent post, here: viewtopic.php?f=49&t=118289&start=20#p815650
My sound card is not working.
I introduced myself to linux through mint 13 maya, so I am still fairly new to linux. Recently I upgraded my MoBo, CPU, RAM from an old Athlon AM2 system to a new FM2 system. Compounding that change I also upgraded to mint 14 at the same time.
Two major hardware-software interactions changed. The first is that my PCI wifi card now works (yay, it didn't with 13 & old system). The second is that my dedicated sound card now does not work (darn, it did with 13 & old system).
Here is my dilemma, expressed pictorally:
My sound output device management:
But my hardware lists shows the card:
The card is an ASUS Xonar DX. Google reveals that there have been historical problems with the ASLO drivers and the Xonar cards, but they should have been long-since dealt with. There were also recommendations from the googlemachine to try Pulseaudio as a solution. This did not work, presumably for the same reason (no hardware output devices listed).
Please help! If further information is required then please be specific on how to attain it.