Comment 21 for bug 1018220

On Wed, June 27, 2012 4:48 am, Christopher M. Penalver wrote:
> Lens Ovens, thank you for reporting this and helping make Ubuntu better. I
> am temporarily moving this to package linux, in order to obtain relevant
> apport data, then will move back to linux-lowlatency.
> Despite this, could you please execute the following in a terminal:
> apport-collect 1018220

Done.

> Regarding your Bug Description:
>>"By the way, the xruns are worse with this version of the kernel than
>> they were in precise (3.2 low latency kernel)."
>
> So, in Precise this problem still occurred, but just less frequently?

About the same frequency, but only one xrun at a time. With the later
kernel (3.5) there would be a group of xruns each time. However, having
played with it a bit more, this may be unrelated as I have found that the
low latency performance even with the ath9k module unloaded is not as good
in general. That is, I could have a virtual midi keyboard playing qsynth
through jack at 128 frames/period with no xruns(3.2 kernel), now I get
some (3.5 kernel).

> As well, if you could also please test the latest upstream kernel
> available that would be great. It will allow additional upstream
> developers to examine the issue. Refer to
> https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the
> upstream kernel, please remove the 'needs-upstream-testing' tag. This

I'll do that next

--
Len Ovens
www.OvenWerks.net