Re: [Jack-Devel] jackd crashes in default duplex mode

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DateSun, 23 Oct 2011 09:53:45 -0400
From Paul Davis <[hidden] at linuxaudiosystems dot com>
ToTvrtko Ursulin <[hidden] at ursulin dot net>
Cc[hidden] at lists dot jackaudio dot org
In-Reply-ToTvrtko Ursulin [Jack-Devel] jackd crashes in default duplex mode
Follow-UpTvrtko Ursulin Re: [Jack-Devel] jackd crashes in default duplex mode 
On Sun, Oct 23, 2011 at 3:50 AM, Tvrtko Ursulin <[hidden]> wrote:
>
> Hi all,
>
> Running on Ubuntu 11.10 using disto binaries. Jackd starts but crashes when
> any client tries to connect (please see below).

You've got two problems.

(1) a bug in JACK2 1.9.7
(2) your audio interface is not running. If its a builtin Intel HDA
device (typical on most computers these days), then this probably
means that the capture source is not correctly set. Some HDA cards
refuse to run when this is the case. You should use alsamixer or any
of its graphical equivalents to play around with the capture settings
so that this message no longer appears as JACK starts up:

> JackProcessSync::LockedTimedWait error usec = 5000000 err = Connection timed
> out
> Driver is not running

Note: this is just a guess based on the limited information available.

--p
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