Re: [LAU] Qjackclt cramps

From: Giso Grimm <gg3137@email-addr-hidden>
Date: Thu Mar 08 2012 - 12:59:35 EET

On 03/08/2012 09:58 AM, thijs van severen wrote:
>
> 2012/3/8 thijs van severen <thijsvanseveren@email-addr-hidden
> <mailto:thijsvanseveren@email-addr-hidden>>
>
> 2012/3/8 Rui Nuno Capela <rncbc@email-addr-hidden <mailto:rncbc@email-addr-hidden>>
>
> On 03/07/2012 09:42 PM, Fons Adriaensen wrote:
> To the facts now: almost every day when I use it, and for
> the last years, Qjackctl get into some cramp in which it
> either
>
> - refuses to make some connections,
> - or refuses to show them,
> - or makes them and then disconnects them immediately.
>
> I don't know what triggers this, but it could be related to apps
> making lots of ports connections in a short time and Qjackctl's
> idea of current connections getting out of sync with reality.
> Given Jack's APi for this that is no big surprise, but what
> really
> messes up things is that Qjackctl apparently has no means to
> recover
> and refresh its connections database from scratch. The only
> option
> is to terminate it (which takes Jack and all apps with it,
> unless
> Jack was started separately).
>
>

[...]

>
> important remark : i'm running 0.3.7 (havent tested 0.3.8 yet)
>

I can confirm this behaviour (also qjackctl 0.3.7), I think I have this
problem only with jack1 (which might be related to the fact that jack2
takes ages to complete a port connection, here it takes 18 times as
long, see below).

- Giso

jack 1.9.7

giso@email-addr-hidden:~$ time (for k in system:playback_{1..26}; do jack_connect
system:capture_1 "$k"; done)

real 0m3.729s
user 0m0.056s
sys 0m1.645s

jack 0.121.2

giso@email-addr-hidden:~$ time (for k in system:playback_{1..26}; do jack_connect
system:capture_1 "$k"; done)

real 0m0.198s
user 0m0.031s
sys 0m0.107s
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Received on Thu Mar 8 12:15:03 2012

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