Bug#718825: linux-image-3.10-1-amd64: Sound freezes when using usb audio card
Sorry for the lag.
I'm running Sid and I started to use the usb audio interface with the
kernel 3.9.
With this version I had also the problem.
Sometimes it freezed also when playing some media with VLC.
With my synth programs it happened when playing realtime audio with my
midi keyboard.
The CPU usage was normal for me when using the synth software: under
30%.
I'll check the load average, disable the swap, test with a more
powerful machine and keep you updated.
Cheers,
---
Serghei Mihai
On Tue, 6 Aug 2013 09:46:50 +0100, Steve Cotton
<steve@s.cotton.clara.co.uk> wrote:
>
> Hi Sergheu,
>
> In this context errno 18 (EXADEV) could mean that audio data is
> arriving at the USB stack too late. I'm wondering if it's simply
> that the userland programs can't keep up.
>
> Was it working correctly when you first bought it, and if so,
> which is the last kernel version that it worked on?
>
> Does it freeze when playing simple audio (.wav files for
> example)?
>
> Using the synth programs, are you just playing back prerecorded
> sounds? Are you using it as a live musical instrument (pressing
> buttons and needing the sound to change immediately)?
>
> What's the load / cpu usage on your laptop just before the sound
> freezes?
>
> Could you try turning off swap (to eliminate a cause of latency)?
>
> From the hardware, I'm guessing it's an old laptop. Please could
> you retest on a more powerful PC?
>
> Regards,
> Steve
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