does the hardware really support (16384/1764) 9.27 periods? does the error occur in the last period ?
I have no idea, how do I find out? What last period?
http://www.alsa-project.org/main/index.php/XRUN_Debug
# Enable basic debugging and dump stack, check hardware pointer on the period update # Usefull to just see, if PCM stream is stopped for a reason (usually wrong audio process timing from scheduler) # And to check the values from driver
echo 11 > /proc/asound/card0/pcm0p/xrun_debug
Check the system log whether the hwptr position are correct in first nine periods and xrun occur on 10th period since the buffer contain 9.27 periods when running vlc?
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/plain/Documenta...
cat /proc/asound/card0/cmipci
What is the model of your sound card ?
Does it support 4 and 6 channels in windows ?