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All the sound works perfect with all the applications on my system. But from the moment I launch Ardour, no more sound comes out from other application than Ardour. The easy way to get it back is to restart the laptop.

This is probably related to Jack ... but it's not clear...

Does anyone know what's going on behind the scene? How to fix it?

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3 Answers 3

I am still figuring out jack and ardour, but you probably need to stop jack. I use qjackctl which you can find in the software center (if you don't already have it installed). after you finished with ardour hit stop in qjackctl and in my system normal sounds start working again.

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That is not enough ... still no sound! –  samb Nov 3 '13 at 20:11

Theres probably a more hygienic method, but opening up the task manager and killing the jackd process fixed the same problem for me.

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in Terminal:$ top | grep jackd, first number in line will be the pid of JACK, kill it with $ kill <pid>. It's the simplest way)

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What about pkill or pgrep instead of top|grep? ;) –  0xC0000022L Jul 28 at 11:21

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