ALSA lib pcm_direct.c:866:(snd1_pcm_direct_initialize_slave) snd_pcm_hw_params_any failed
ALSA lib pcm_dmix.c:1020:(snd_pcm_dmix_open) unable to initialize slave
After modifying the pcm/pcm_params.c to enable REFINE_DEBUG and also added printout of the driver version(pcm_hw->version) to the hw_refine_call function. We got the following output:
REFINE called:
ACCESS: ALL
FORMAT: ALL
SUBFORMAT: ALL
SAMPLE_BITS: ALL
FRAME_BITS: ALL
CHANNELS: ALL
RATE: ALL
PERIOD_TIME: ALL
PERIOD_SIZE: ALL
PERIOD_BYTES: ALL
PERIODS: ALL
BUFFER_TIME: ALL
BUFFER_SIZE: ALL
BUFFER_BYTES: ALL
TICK_TIME: ALL
hw_refine_call called:
hw_refine_call version 131082:
refine done - result = -22
ACCESS: MMAP_INTERLEAVED RW_INTERLEAVED
FORMAT: S16_LE
SUBFORMAT: STD
SAMPLE_BITS: 16
FRAME_BITS: [32 128]
CHANNELS: [2 8]
RATE: [44100 192000]
PERIOD_TIME: ALL
PERIOD_SIZE: [8 134217728]
PERIOD_BYTES: [128 536870912]
PERIODS: [2 32]
BUFFER_TIME: ALL
BUFFER_SIZE: [16 268435456]
BUFFER_BYTES: NONE
TICK_TIME: ALL
ALSA lib pcm_direct.c:866:(snd1_pcm_direct_initialize_slave) snd_pcm_hw_params_any failed
ALSA lib pcm_dmix.c:1020:(snd_pcm_dmix_open) unable to initialize slave
In this output we noticed that the hw_refine is returning 22 (Invalid Argument) and some of the returned parameters seems to be unusual such as the PERIOD_BYTES: [128 536870912]. Can this be the cause of the problem?
Anyone have any ideas why this problem happens? Or what else we should investigate?
V.
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