I don't actually own a CMI8788 based card but am looking to get a Xonar D2 to replace the onboard mobo audio (ALC889a, working) on my Gigabyte X48 board. Has anyone tried the CMI8738 driver, which apparently also works for CMI8768 based sound cards? See the end of this thread for a 10.5 recompiled driver:
Even if the driver is partially working (am only looking to use the front channel analog outputs), I would probably spring for the Xonar D2 card. If someone could give it a shot and post back with their results, that would be great.