On Sun, 26 Jul 2020 at 17:49, Samuel Sieb samuel@sieb.net wrote:
On 7/26/20 1:37 PM, Greg Woods wrote:
After wrestling all day with an ASUS Xonar SE card (with accompanying Googling), I now believe that this card cannot be made to work in Linux. Stereo output through the green line out port works fine, but SPDIF does not. "lspci" actually claims this thing is a USB controller, although as I mentioned stereo sound does work.
Audio, bluetooth, and other I/O is often implemented using USB devices, so it should not be surprising to find a USB controller. You should be able to find the USB id's. According to ASUS ( https://www.asus.com/Sound-Cards/Xonar-SE/specifications/), the card uses a "C-Media USB2.0 6620A High-Definition Sound Processor (Max. 192KHz/24bit)".
https://www.audioshark.org/ might be able to help -- there are linux users doing serious audio work.