I have a problem with sound which sometimes crackling/stuttering. It happend on Ubuntu 18.04 but I reinstalled to Ubuntu 19.04 and the same thing happens.
I've found these records. It logs only when the crackling sound appears so it has to be an answer here but I don't know what does it mean.
I've killed pulseaudio and run it manually:
/usr/bin/pulseaudio --daemonize=no --log-target=stderr --log-level=4
Can you give me some hints?
I: [alsa-sink-ALC892 Analog] alsa-sink.c: Scheduling delay of 144.70 ms > 65.99 ms, you might want to investigate this to improve latency...
I: [alsa-sink-ALC892 Analog] alsa-sink.c: Underrun!
I: [alsa-sink-ALC892 Analog] alsa-sink.c: Increasing minimal latency to 86.00 ms
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Latency set to 86.00ms
D: [alsa-sink-ALC892 Analog] alsa-sink.c: hwbuf_unused=50368
D: [alsa-sink-ALC892 Analog] alsa-sink.c: setting avail_min=13475
D: [alsa-sink-ALC892 Analog] protocol-native.c: max_request changed, trying to update from 35000 to 38528.
D: [alsa-sink-ALC892 Analog] protocol-native.c: Notifying client about increased tlength
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Latency set to 86.00ms
D: [alsa-sink-ALC892 Analog] alsa-sink.c: hwbuf_unused=50368
D: [alsa-sink-ALC892 Analog] alsa-sink.c: setting avail_min=13475
D: [alsa-sink-ALC892 Analog] protocol-native.c: Implicit underrun of 'Playback'
D: [alsa-sink-ALC892 Analog] protocol-native.c: Requesting rewind due to end of underrun.
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Requested to rewind 15168 bytes.
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Limited to 14784 bytes.
D: [alsa-sink-ALC892 Analog] alsa-sink.c: before: 3696
D: [alsa-sink-ALC892 Analog] alsa-sink.c: after: 3696
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Rewound 14784 bytes.
D: [alsa-sink-ALC892 Analog] sink.c: Processing rewind...
D: [alsa-sink-ALC892 Analog] sink.c: latency = 1345
D: [alsa-sink-ALC892 Analog] sink-input.c: Have to rewind 14784 bytes on render memblockq.
D: [alsa-sink-ALC892 Analog] source.c: Processing rewind...
I: [alsa-sink-ALC892 Analog] alsa-sink.c: Underrun!
I: [alsa-sink-ALC892 Analog] alsa-sink.c: Increasing wakeup watermark to 75.99 ms
I: [alsa-sink-ALC892 Analog] alsa-sink.c: Underrun!
I: [alsa-sink-ALC892 Analog] alsa-sink.c: Increasing minimal latency to 96.00 ms
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Latency set to 96.00ms
D: [alsa-sink-ALC892 Analog] alsa-sink.c: hwbuf_unused=48604
D: [alsa-sink-ALC892 Analog] alsa-sink.c: setting avail_min=13034
D: [alsa-sink-ALC892 Analog] protocol-native.c: max_request changed, trying to update from 38528 to 42056.
D: [alsa-sink-ALC892 Analog] protocol-native.c: Notifying client about increased tlength
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Latency set to 96.00ms
D: [alsa-sink-ALC892 Analog] alsa-sink.c: hwbuf_unused=48604
D: [alsa-sink-ALC892 Analog] alsa-sink.c: setting avail_min=13034
D: [alsa-sink-ALC892 Analog] protocol-native.c: Implicit underrun of 'Playback'
D: [alsa-sink-ALC892 Analog] protocol-native.c: Requesting rewind due to end of underrun.
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Requested to rewind 16932 bytes.
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Limited to 16516 bytes.
D: [alsa-sink-ALC892 Analog] alsa-sink.c: before: 4129
D: [alsa-sink-ALC892 Analog] alsa-sink.c: after: 4129
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Rewound 16516 bytes.
D: [alsa-sink-ALC892 Analog] sink.c: Processing rewind...
D: [alsa-sink-ALC892 Analog] sink.c: latency = 1318
D: [alsa-sink-ALC892 Analog] sink-input.c: Have to rewind 16516 bytes on render memblockq.
D: [alsa-sink-ALC892 Analog] source.c: Processing rewind...
I: [alsa-sink-ALC892 Analog] alsa-sink.c: Scheduling delay of 195.31 ms > 75.99 ms, you might want to investigate this to improve latency...
I: [alsa-sink-ALC892 Analog] alsa-sink.c: Underrun!
I: [alsa-sink-ALC892 Analog] alsa-sink.c: Increasing wakeup watermark to 85.99 ms
D: [alsa-sink-ALC892 Analog] protocol-native.c: Implicit underrun of 'Playback'
D: [alsa-sink-ALC892 Analog] protocol-native.c: Requesting rewind due to end of underrun.
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Requested to rewind 16932 bytes.
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Limited to 16580 bytes.
D: [alsa-sink-ALC892 Analog] alsa-sink.c: before: 4145
D: [alsa-sink-ALC892 Analog] alsa-sink.c: after: 4145
D: [alsa-sink-ALC892 Analog] alsa-sink.c: Rewound 16580 bytes.
D: [alsa-sink-ALC892 Analog] sink.c: Processing rewind...
D: [alsa-sink-ALC892 Analog] sink.c: latency = 1510
D: [alsa-sink-ALC892 Analog] sink-input.c: Have to rewind 16580 bytes on render memblockq.
I've found related bug maybe:
0 Answers