i am using Ubuntu studio to record analog audio with Audacity and an external DAC which is connected via USB. I prefer to avoid jackd and i setup Audacity to record directly from the DAC as an ALSA device.

I would like to check if XRUNs occur, but there are no xrun_debug entities under /proc/asound/cardxx. Is there any alternative way check for XRUNs in ALSA or i have to rebuild the kernel with options like CONFIG_SND_PCM_XRUN_DEBUG ?