[LAU] help with guitarix settings - jack issue

Cedric Roux sed at free.fr
Sun Mar 27 12:00:53 UTC 2011


----- "Peder Hedlund" <peder at musikhuset.org> wrote:
> Quoting Cedric Roux <sed at free.fr>:
> > jackdmp 1.9.6
> > JACK server starting in non-realtime mode
> > Cannot lock down memory area (Cannot allocate memory)
> > creating alsa driver ...
> hw:0|hw:2|256|2|44100|0|0|nomon|swmeter|-|32bit
> 
> 1. You aren't running jack with realtime priorities and memory
> locking.
>     Make sure you're in the audio group, have "@audio - rtprio 99"
> and
>     "@audio - memlock unlimited" in /etc/security/limits.d/audio.conf
> and
>     start jack with a "-P 70" flag prior to "-d alsa".

I don't have a rt kernel and don't plan to have one.

> 
> 2. Built in Intel soundcards usually work better with 3 periods per
> buffer

I'll try that, why not.

> 
> 3. Why are you using different soundcards for capture and playback?

why not? I have an internal soundcard for playback
and an external usb device (ua1ex) for audio
capture. What's wrong with that?


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