if you cannot find stereo 48000Hz wav file aplay -D plughw:CARD=CA0106 -v --buffer-size=1024 any.wav
try to find minimum buffer size 1024,512, 256,128,64,... without underrun 1024 frames = 21.33 ms x 48000Hz 4096 = 85.33 ms x 48000Hz if request tlength 85.33ms is buffer time and 21.33ms is period time not sure why pulseaudio received latency is 26ms alsa_output.pci-0000_06_00.0.analog-stereo with sample spec s16le 2ch 48000Hz and channel map front-left,front-right Dec 25 19:29:42 homecomp pulseaudio[1911]: media.name = "ALSA Playback" Dec 25 19:29:42 homecomp pulseaudio[1911]: application.name = "ALSA plug-in [Transistor.bin.x86_64]" Dec 25 19:29:42 homecomp pulseaudio[1911]: native-protocol.peer = "UNIX socket client" Dec 25 19:29:42 homecomp pulseaudio[1911]: native-protocol.version = "26" Dec 25 19:29:42 homecomp pulseaudio[1911]: application.process.id = "9536" Dec 25 19:29:42 homecomp pulseaudio[1911]: application.process.user = "rkfg" Dec 25 19:29:42 homecomp pulseaudio[1911]: application.process.host = "homecomp" Dec 25 19:29:42 homecomp pulseaudio[1911]: application.process.binary = "Transistor.bin.x86_64" Dec 25 19:29:42 homecomp pulseaudio[1911]: application.language = "en_GB.UTF-8" Dec 25 19:29:42 homecomp pulseaudio[1911]: window.x11.display = ":0.0" Dec 25 19:29:42 homecomp pulseaudio[1911]: application.process.machine_id = "3be8f38f291dd2003af500d051c0a849" Dec 25 19:29:42 homecomp pulseaudio[1911]: application.process.session_id = "10" Dec 25 19:29:42 homecomp pulseaudio[1911]: module-stream-restore.id = "sink-input-by-application-name:ALSA plug-in [Transistor.bin.x86_64]" Dec 25 19:29:42 homecomp pulseaudio[1911]: Requested tlength=85.33 ms, minreq=21.33 ms Dec 25 19:29:42 homecomp pulseaudio[1911]: Early requests mode enabled, configuring sink latency to minreq. Dec 25 19:29:42 homecomp pulseaudio[1911]: Requested latency=21.33 ms, Received latency=26.00 ms -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1315212 Title: [CA0106 - CA0106, playback] Playback problem - Surround dies, no valid output To manage notifications about this bug go to: https://bugs.launchpad.net/alsa-driver/+bug/1315212/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs