[pulseaudio-tickets] [Bug 86262] severe underruns with usb audio, works with pa 3.0 - buffer setup seems wrong

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86262

--- Comment #4 from Raymond <superquad.vortex2 at gmail.com> ---
underrun occur because requested length 20ms is less than fragment time 24.99ms

timer scheduling require two hardware feateures 
report granularity in dma brust and disable period wakeup 


I: [pulseaudio] alsa-sink.c: Using 4.0 fragments of size 4408 bytes (24.99ms),
buffer size is 17632 bytes (99.95ms)



I: [pulseaudio] protocol-native.c: Requested tlength=20.00 ms, minreq=4.99 ms

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