Ubuntu Studio 12.04 LTS Release

Ralf Mardorf ralf.mardorf at alice-dsl.net
Thu Apr 26 19:19:49 UTC 2012

On Thu, 2012-04-26 at 13:54 -0500, Scott Lavender wrote:

>  [snip]* lowlatency kernel installed by default
>  * i386 images use the lowlatency-pae kernel

Today on LAU I wrote:

"Pardon, I didn't read and answered private mails for more than a month.
I'll do it ASAP.
Besides, I compared AVlinux 5.0.3, Kernel 3.0.23-avl-7-pae threadirqs
with Kernel 3.0.23-rt40, also PAE, but optimized to AMD, for work with
internal MIDI, using it's default JACK1 and a RME HDSPe AIO. FWIW since
editing nv-linux.h didn't help, I used the FLOSS nv driver. I run JACK1
with -Z and sample_rate=48000, frames_period=256. Clients still get lost
and there are tons of audible glitches, that are shown as xruns, so
serious audio work is impossible, the only good news is, that there's no
difference between the default threadirqs kernel and the kernel-rt.
Someday I'll report about the result, when using different versions of

So yes, I experienced non-rt kernels as not being an issue, but my last
stable DAW was Maverick. Since the RME card is installed, even the Envy
cards don't have audio output anymore, so Maverick is broken now.
Oneiric doesn't work too ...

>  * XFCE is default desktop environment
>  * Pulse Audio <-> JACK bridging enabled by default [snip]

... Bridging? = No issues for 10 IOs?



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