I have a china DAC from aliexpress on a C-Media CM6631 chipset. It's works in Ubuntu 16.04 with ALSA, but with default sample rate only. The same chipset has a Asus Xonar Essence One, and as declare, this soundcard supported fully: [ANALOGo] [RCAi] [TOSi] [24bit] [192kHz] [NoCap] (http://www.alsa-project.org/main/index.php/Matrix:Vendor-Asus) What I shall configure that my DAC was looked like Asus Xonar Essence One for ALSA?
Yes, I have a same problem.