Making Studio work with more than one DE

Len Ovens len at
Thu May 23 13:32:31 UTC 2013

On Thu, May 23, 2013 12:21 am, Hartmut Noack wrote:
> Am 23.05.2013 06:17, schrieb Len Ovens:

>>> It should be easier to disable PA to a near-removed status though....
>> Unload module-jackdbus-detect:
>> pactl unload-module module-jackdbus-detect
>> PA still takes up memory, but uses almost no cpu without that module.
> The CPU-load would be tolerable, the problem is, what PA+dbus do at
> startup. Is there a way to blacklist interfaces? Some command like : "PA
> do not touch that device!"?

Yes, run pavucontrol, select the last tab (configuration?) select the card
you want PA to leave alone and turn it's "profile" to OFF. Counter
intuitively, I turn off the cards Jack is not going to want to use as I
have found that the PA-jack bridge links the two cards. In other words, if
PA uses the internal HDA (mine does not do good low latency due to HW
problems) and Jack is using my USB IF, the problems I would have with the
HDA, show up on the USB. The PA-Jack bridge forces PA to try to do the
same latency as jack.

I am not sure if that is clear. The thing to remember is that they do
interact when bridged. This is not really a bug any more than the fact
that a trailer will affect the way your car drives.

Len Ovens

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