I have a dual boot system with Windows 8 and Ubuntu 14.04LTS and I have a ASUS Xonar DGX. There's no sound in Ubuntu but it works correctly in Windows. I've looked at some of the other threads and used the terminal to check the card out. (That was a fun learning experience. :) ) The card appears to be recognized correctly. It shows as a CMI8788 [Oxygen HD Audio] in the sound settings as it should. But when I test the sound I get nothing.
Any help would be greatly appreciated.
EDIT: I ran the requested reset on alsa and ran Lspci -v | grep -A7 -i "audio" again
01:00.1 Audio device: NVIDIA Corporation GF104 High Definition Audio Controller (rev a1) Subsystem: NVIDIA Corporation Device 0865 Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at f7dfc000 (32-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel 02:00.0 SATA controller: JMicron Technology Corp. JMB363 SATA/IDE Controller (rev 03) (prog-if 01 [AHCI 1.0]) -- 04:04.0 Multimedia audio controller: C-Media Electronics Inc CMI8788 [Oxygen HD Audio] Subsystem: ASUSTeK Computer Inc. Device 8521 Flags: bus master, medium devsel, latency 64, IRQ 17 I/O ports at d800 [size=256] Capabilities: <access denied> Kernel driver in use: snd_oxygen 07:03.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev c0) (prog-if 10 [OHCI])