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[WHL] output sound is choppy if we play with paplay #812
Description
kernel: f0ce2c5 and cherry-pick 4b3555a886f990a66182d6f041f0cdda0f95aca1 + 75d88bd
FW: thesofproject/sof@ed6ac05 and revert thesofproject/sof@f5e7843
We can see a lot of log with same DMA and DAI position.
[ 688.768510] sof-audio-pci 0000:00:1f.3: PCM: stream 0 dir 0 DMA position 12192 DAI position 56760
[ 688.768632] sof-audio-pci 0000:00:1f.3: PCM: stream 0 dir 0 DMA position 12192 DAI position 56760
[ 688.768642] sof-audio-pci 0000:00:1f.3: PCM: stream 0 dir 0 DMA position 12192 DAI position 56760
[ 688.768955] sof-audio-pci 0000:00:1f.3: PCM: stream 0 dir 0 DMA position 12192 DAI position 56760
[ 688.768999] sof-audio-pci 0000:00:1f.3: PCM: stream 0 dir 0 DMA position 12192 DAI position 56760
[ 688.769201] sof-audio-pci 0000:00:1f.3: PCM: stream 0 dir 0 DMA position 12192 DAI position 56760
[ 688.769231] sof-audio-pci 0000:00:1f.3: PCM: stream 0 dir 0 DMA position 12192 DAI position 56760
[ 688.769313] sof-audio-pci 0000:00:1f.3: PCM: stream 0 dir 0 DMA position 12192 DAI position 56760
[ 688.769331] sof-audio-pci 0000:00:1f.3: PCM: stream 0 dir 0 DMA position 12192 DAI position 56760
[ 688.798577] sof-audio-pci 0000:00:1f.3: PCM: stream 0 dir 0 DMA position 12192 DAI position 56760
[ 688.798605] sof-audio-pci 0000:00:1f.3: PCM: stream 0 dir 0 DMA position 12192 DAI position 56760
It seems we don't get SOF_IPC_STREAM_POSITION ipc in time.
How to reproduce:
- boot up on a ubuntu device.
- paplay test.wav
Activity
[-][WHL HDA] output sound is choppy if we play with paplay[/-][+][WHL] output sound is choppy if we play with paplay[/+]bardliao commentedon Apr 12, 2019
This issue can be seen on both WHL HDA and I2S mode, but I can't reproduce it on Up2 (APL).
mengdonglin commentedon Apr 16, 2019
Closed since PR #826 is merged and can fix this issue
ACPICA: acpi_madt_oem_data: Fix flexible array member definition