On 9/15/09, lanas lanas@securenet.net wrote:

Hi,

Using yum I've installed jackd and qjackctl on an fully updated F11 x86_64 system. When using qjackctl to start jackd it reports that it cannot connect to alsa. What would be the proper configuration to use jackd on a F11 x86_64 system ?

Maybe PulseAudio stands between jackd and alsa? I'm not sure if you can have both (i.e. jackd and PA). If not, then the required configuration for jackd is throwing out PA.

Andras

On Mon, 2009-09-14 at 20:07 -0500, Mikkel L. Ellertson wrote:

Andras Simon wrote:

...

On 9/15/09, lanas lanas@securenet.net wrote:

...

Hi,

Using yum I've installed jackd and qjackctl on an fully updated F11 x86_64 system. When using qjackctl to start jackd it reports that it cannot connect to alsa. What would be the proper configuration to use jackd on a F11 x86_64 system ?

Maybe PulseAudio stands between jackd and alsa? I'm not sure if you can have both (i.e. jackd and PA). If not, then the required configuration for jackd is throwing out PA.

Andras

There is a plug in, I believe for jackd, that lets it work with PA. I don't remember then name, but you can search for it. Try doing a search for pulse or jack in yumex.

There is such a module, namely: pulseaudio-module-jack

I've been running jackd successfully along with pulseaudio, though with some xrun problems. In order to avoid xruns, jackd needs a whole lot of frames and periods, namely: 4096 frames, 4 periods 341 msec latency and a kernel rebuilt to be preemtable.

But now jackd seems to be running OK.

jon

On Mon, 2009-09-14 at 22:07 -0400, lanas wrote:

Le Lundi, 14 Sep 2009 18:25:02 -0700, Jonathan Ryshpan jonrysh@pacbell.net a écrit :

...

I've been running jackd successfully along with pulseaudio, though with some xrun problems. In order to avoid xruns, jackd needs a whole lot of frames and periods, namely: 4096 frames, 4 periods 341 msec latency and a kernel rebuilt to be preemtable.

But now jackd seems to be running OK.

Is there any updated HOWTO out there that describes the required steps to modify a Fedora 11 kernel configuration (perhaps for the prempt patch and such) and recompiling it ?

Rahul recommends: http://fedoraproject.org/wiki/Building_a_custom_kernel I've found it pretty useful.

But the easiest way to identify the kernel version is to put this line into ~/.rpmmacros: %dist .fc11.<your-id> in your case %dist .fc11.lanas and to ignore the stuff about editing #% define buildid .local This will identify anything you build, kernel or otherwise, as <whatever>.fcll.lanas.<whatever> rather than <whatever>.fcll.<whatever>

All the best - jon