| Summary: | stuttering audio when paired to phone with bluetooth | ||
|---|---|---|---|
| Product: | PulseAudio | Reporter: | Brian J. Murrell <brian> |
| Component: | core | Assignee: | pulseaudio-bugs |
| Status: | RESOLVED MOVED | QA Contact: | pulseaudio-bugs |
| Severity: | major | ||
| Priority: | medium | CC: | lennart |
| Version: | unspecified | ||
| Hardware: | x86-64 (AMD64) | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Attachments: | pactl list output | ||
It looks like the problem might be that we're not receiving audio fast enough from the phone. The "Could not peek into queue" messages are printed when the HDMI sink wants more data, but there's nothing in the loopback buffer. It would be nice to see this reproduced on PulseAudio 11.0 (or later). That version has significant improvements in module-loopback's buffer management. One thing to try would be to unload the wifi kernel module. Wifi often interferes with the bluetooth radio. (In reply to Tanu Kaskinen from comment #1) > It looks like the problem might be that we're not receiving audio fast > enough from the phone. The "Could not peek into queue" messages are printed > when the HDMI sink wants more data, but there's nothing in the loopback > buffer. Interesting. > It would be nice to see this reproduced on PulseAudio 11.0 (or later). That > version has significant improvements in module-loopback's buffer management. I will see if I can get to there from here. > One thing to try would be to unload the wifi kernel module. Wifi often > interferes with the bluetooth radio. I did see several references to wifi interference while researching this issue but the machine this is running on doesn't have any wifi. pulseaudio 11[.1] is much(!) better. There are still random little blips every now and then. Kind of like the artefact of a scratch on a CD. Not sure if that is PA/bluetooth buffering or what. Maybe there is not enough of a buffer to accommodate momentary radio interference on the BT signal or something. But overall, much much better. It's actually listenable now. -- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/issues/450. |
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Created attachment 135016 [details] pactl list output I have my Android phone paired to my Fedora 26 machine via Bluetooth. I am trying to play from a music app on the phone to PA on the Fedora machine. While it basically works, I am getting a lot of stuttering. When this stuttering happens the following can be found in a "-vvvv" log output: D: [alsa-sink-HDMI 0] sink.c: alsa_output.pci-0000_00_03.0.hdmi-stereo: Found underrun 864 bytes ago (10776 bytes ahead in playback buffer) I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue D: [alsa-sink-HDMI 0] sink.c: alsa_output.pci-0000_00_03.0.hdmi-stereo: Found underrun 3808 bytes ago (7768 bytes ahead in playback buffer) I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue D: [alsa-sink-HDMI 0] sink.c: alsa_output.pci-0000_00_03.0.hdmi-stereo: Found underrun 7328 bytes ago (4312 bytes ahead in playback buffer) I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue D: [alsa-sink-HDMI 0] sink.c: alsa_output.pci-0000_00_03.0.hdmi-stereo: Found underrun 10912 bytes ago (728 bytes ahead in playback buffer) D: [alsa-sink-HDMI 0] sink.c: alsa_output.pci-0000_00_03.0.hdmi-stereo: Found underrun 10912 bytes ago (88 bytes ahead in playback buffer) D: [alsa-sink-HDMI 0] sink.c: alsa_output.pci-0000_00_03.0.hdmi-stereo: Found underrun 10912 bytes ago (88 bytes ahead in playback buffer) D: [alsa-sink-HDMI 0] sink.c: alsa_output.pci-0000_00_03.0.hdmi-stereo: Found underrun 10912 bytes ago (24 bytes ahead in playback buffer) I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue I: [alsa-sink-HDMI 0] module-loopback.c: Could not peek into queue As you can see, I am using the audio in the HDMI adapter in this machine which is a: 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) I've attached a "pactl list" output. Any ideas would be much appreciated.