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2nd time starting / connecting music after a reboot results in no sound (DAC)

See original GitHub issue

Describe the bug When librespot / spocon stops playback, I believe the device is left open and is not forcefully reopened or killed when a new playback attempt is made. There are no clear logs that describe this. Spotify continues to play back, but no audio is heard.

To Reproduce

Reboot Raspberry Pi Zero W
Connect to Spotify, and play music.
Stop music by disconnecting / switching to another device, pausing, or manually playing a podcast.
Try to reconnect, no audio.

Additionally:

The same behaviour can be found by now running speaker-test.

Expected behavior

Starting and stopping audio should work.
Being interrupted by another user on spotify should play their music, rather than bricking audio playback until reboot.

Screenshots/Stracktraces/Logs

pi@spotipi:~ $ speaker-test -dcard:Device

speaker-test 1.1.8

Playback device is default
Stream parameters are 48000Hz, S16_LE, 1 channels
Using 16 octaves of pink noise
Playback open error: -16,Device or resource busy

Version/Commit 1.5.3

Using alsa.

I did see this in the logs, not sure if it helps.

Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,437 DEBUG PlayerQueueEntry:209 - PlayerQueueEntry{0178c7756e730278d60e63eddecdf07c} has been removed from output.
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,461 TRACE PlayerQueueEntry:325 - PlayerQueueEntry{0178c7756e730278d60e63eddecdf07c} terminated.
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,467 TRACE PlayerQueue:141 - Queue has been cleared.
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,476 TRACE AsyncProcessor:57 - AsyncProcessor{put-state-worker} is shutting down
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,490 INFO  Session:417 - Closing session. {deviceId: 504c79f310ca50f51a6c0400ff9432d5b4fa2206}
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,496 TRACE AsyncProcessor:57 - AsyncProcessor{dealer-worker} is shutting down
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,517 DEBUG DealerClient:319 - Did not dispatch connection invalidated: null != xyz.gianlu.librespot.dealer.DealerClient$ConnectionHolder@ed20b7
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,526 TRACE AsyncProcessor:57 - AsyncProcessor{event-service-sender} is shutting down
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,566 TRACE MercuryClient:183 - Handling packet, cmd: MercuryReq, seq: 82, flags: 1, parts: 1
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,571 DEBUG EventService:35 - Event sent. {body: 12|37|13|504c79f310ca50f51a6c0400ff9432d5b4fa2206|0178c7756e730278d60e63eddecdf07c|00000000000000000000
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,578 TRACE MercuryClient:140 - Send Mercury request, seq: 83, uri: hm://event-service/v1/events, method: POST
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,727 TRACE MercuryClient:183 - Handling packet, cmd: MercuryReq, seq: 83, flags: 1, parts: 1
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,730 DEBUG EventService:35 - Event sent. {body: 10|20|cb14f1eac699da36ffbf0163c5123494892b54c9|0178c7756e730278d60e63eddecdf07c|0|0|0|0|0|0|5242880|117
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,746 TRACE MercuryClient:140 - Send Mercury request, seq: 84, uri: hm://event-service/v1/events, method: POST
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,890 TRACE MercuryClient:183 - Handling packet, cmd: MercuryReq, seq: 84, flags: 1, parts: 1
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,895 DEBUG EventService:35 - Event sent. {body: 372|1|0178c7756e730278d60e63eddecdf07c|spotify:track:5mAitcAt2Z23HIIINIcY0h|0|[[148,123169]], result: 2
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,901 TRACE AsyncProcessor:48 - AsyncProcessor{event-service-sender} is shut down
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,909 TRACE Session:1368 - Session.Receiver stopped
Dec 29 23:55:06 spotipi java[444]: 2020-12-29 23:55:06,931 INFO  Session:476 - Closed session. {deviceId: 504c79f310ca50f51a6c0400ff9432d5b4fa2206}

Issue Analytics

State:
Created 3 years ago
Comments:5 (2 by maintainers)

Top GitHub Comments

1reaction

devgianlucommented, Dec 30, 2020

As you can see there is no clear pattern in what’s happening. The fact is that a Raspberry Pi Zero can’t run a Java program properly and in a reliable way. You’ll see many of this problems disappear on the Raspberry Pi 4 (hopefully).

1reaction

devgianlucommented, Dec 30, 2020

Can you try starting the playback, pausing, waiting 30 seconds and then executing speaker-test -dcard:Device. The device should be released after 20 seconds of inactivity (and also when the session is closed).