Audio troubleshooting grid

Some typical issues related to the audio domain are listed below. Solutions or debugging methods are proposed for these issues.

If your issue is not listed, try looking at in the articles in the Audio or troubleshooting grids categories.


Symptom Resolution
ALSA
aplay: pcm_write:2030:
write error: Input/output error

This error occurs on an audio playback, when audio samples are not output. A possible cause is a wrong configuration of the audio interface:

- DAI gpios not activated: missing in DT or in bad state
- DAI/codec not clocked: kernel/master clock not enabled

Refer to Soundcard configuration

Error -16 setting sai_ck parent clock.
Active stream rates conflict

The two SAI sub blocks which are connected to the audio codec, share their master clock on Disco and Evaluation boards. When running both capture and playback on the codec, the chosen sampling rates must be multiple of each other, because of this dependency. If sampling rates are not compatible, an error is issued.


Miscellaneous
Silence is recorded from headset microphone. The following points have to be checked:
- The headset jack must be compatible with CTIA standard.
- Check volumes and mute switches in record path. (ALSA control configuration and Pulseaudio settings)
- Check that the codec is fed with master clock.



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