[alsa-devel] Problems with usb soundcard in kernels > 3.3

[Bogdan Veringioiu]

Hi,

any idea on how to further debug this issue?
Thanks,
Bogdan

On 11/11/2014 03:06 PM, Bogdan Veringioiu wrote:
> Hi,
>
> thanks for your availability.
> There is one message that appears in syslog, but it is always displayed
> when I test with aplay, unregarding the kernel version. It shows both
> with the working kernel (3.2) and with the problematic one (3.16).
>
> --> with kernel 3.2.0-4-686-pae
> /var/log/syslog
> ...
> kernel: [ 2829.369380] 2:1:1: cannot get freq at ep 0x2
> ...
>
> --> with kernel 3.16-0.bpo.2-686-pae
> /var/log/syslog
> ...
> kernel: [  199.353227] usb 2-1: 1:1: cannot get freq at ep 0x2
> ...
>
> Bogdan
>
> On 11/11/2014 02:32 PM, Clemens Ladisch wrote:
>> Bogdan Veringioiu wrote:
>> > The issue I am experiencing is a ~4 seconds delay in playing sound.
>> > I am reproducing the problem using aplay. The sound play is being
>> > delayed by more or less 4 seconds from the moment the file is sent
>> > to the card. I have tested with kernels 3.2 and 3.3, which work
>> > properly. I have noticed this delay/wait when using kernels 3.15,
>> > 3.16.
>>
>> Any messages in the system log when this happens?
>>
>>
>> Regards,
>> Clemens
>>
>