Hi
We are not able to update our system. We are using USB codecs which
are working fine but they are using the snd_pcm_hw_prepare function.
The Problem only exists for the I2S codec in our system. When i
changed the buffer size in the asound.conf for the codec the problem
allready exists but it arise not so often because there is not so
often a underrun. Is there any hint where i could lock for the problem?!
br Harald
Zitat von Takashi Iwai <tiwai@xxxxxxx>:
On Fri, 22 Jun 2018 20:36:12 +0200,
Harald Schuster wrote:
Zitat von Takashi Iwai <tiwai@xxxxxxx>:
> On Fri, 22 Jun 2018 15:29:21 +0200,
> Harald Schuster wrote:
>>
>> I found out that an underrun occours and so the pcm_prepare function
>> for pcm_direct is called and then pcm_start_dshare is called. Both
>> functions returns without any error but the playback path is blocked
>> in the snd_pcm_wait_nocheck function. I read that there was an similar
>> problem before in the group but i didn't found any solution. Is this a
>> problem in the driver and how can i go forward to fix it. The codec is
>> a tlv320aic3x-audio. Thanks for your help.
>
> Does this happen with the very latest alsa-lib git version?
> Just to be sure.
>
>
> Takashi
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Hi
We are using k4.1.15-6QP+ga2066af.
I'm asking the alsa-lib, not kernel.
And 4.1.x is very old... Please check either 4.17.x or latest Linus
tree whether the problem persists, too.
Takashi
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