Comment 45 for bug 996906

(In reply to rkfg from comment #7)
> Created attachment 113083 [details]
> Underruns with prealloc=2048
>
> I was able to leverage the "Underrun!" issue by setting prealloc to 2048 in
> kernel options (recompiled it). It can also be achieved via echo 2048 >
> /proc/asound/card0/pcm0p/sub0/prealloc without recompiling. Wonder why 64 is
> still default in Debian/Ubuntu. So it doesn't change the latency/watermark
> now this hard. However, I still get "Underrun!" after launching LMMS. It
> also spams the syslog with
>
> Feb 03 08:58:35 work pulseaudio[1895]: Pool full
>
> And there are still clicks in the playback from time to time.

do your lmms using 256 frames buffer 5.80 ms ?

try change audio to alsa and change default to hw:0 if you want low latency