Re: [LAU] question about jackdmp's ability to detect its soundcard has disconnected

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From: Len Ovens <len@...>

To: Ivica Ico Bukvic <ico@...>

Cc: A list for linux audio users <linux-audio-user@...>

Subject: Re: [LAU] question about jackdmp's ability to detect its soundcard has disconnected

Date: Monday, October 29, 2012 - 8:29 pm

On Mon, October 29, 2012 7:55 am, Ivica Ico Bukvic wrote:

> Either way, one of my concerns is that while in the old jack when one

quoted text

> accidentally pulled the soundcard jack was trying to talk to (e.g. a USB
> soundcard), the jack would gracefully stop. The new version (and this
> could
> be Ubuntu quirk) instead of stopping is pegged in some kind of a spinlock
> that often times locks up the machine (this may be in part since I am
> running a lowlatency kernel with audio group given priority) and at times
> keeps it operational while hogging the cpu and making the computer barely
> responsive until jackd is killed. Apps connected to jack that I tested so
> far are also stuck in a loop waiting for a response from jack (although
> this
> could be the app's shortcoming)--jack never broadcasts a signal that it
> has
> lost the soundcard (AFAICT). FWIW I am running jackdmp through qjackctl...

Sounds like a bug. I will test it on my HW (both of them) to see what I
can see.

--
Len Ovens
www.OvenWerks.net

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Messages in current thread:

[LAU] question about jackdmp's ability to detect its soundca..., Ivica Ico Bukvic, (Mon Oct 29, 2:55 pm)

Re: [LAU] question about jackdmp's ability to detect its sou..., Len Ovens, (Mon Oct 29, 8:29 pm)

Re: [LAU] question about jackdmp's ability to detect its sou..., Robin Gareus, (Mon Oct 29, 4:10 pm)

Re: [LAU] question about jackdmp's ability to detect its sou..., Ivica Bukvic, (Mon Oct 29, 4:34 pm)