[alsa-devel] Broken JACK plugin in alsa-plugins and a way to fix it.

Jasiu kiputnik at gmail.com
Sat May 19 16:54:45 CEST 2007

Sorry, it seems that while that fixed the problem for some apps
(notably mplayer) it broke a few others. (amarok, artsd) So please
just ignore my remake about the fix for now. It would be nice if
someone could explain to me why that bug happens, because currently
I'm more and more confused about that.

On 5/19/07, Jasiu <kiputnik at gmail.com> wrote:
> Hi.
> I want to note that JACK plugin in alsa-plugins in broken. (At least
> on my two systems.) It just plays for a few seconds and then stops
> hanging the application that was sending data to it. When it hangs
> jackd spits out this:
> subgraph starting at alsa-jack.jackP.3635.0 timed out
> (subgraph_wait_fd=7, status = 0, state = Running)
> What I want to note is that there is a fix to that and I would like it
> to be included in the tree. I'm not sure if it doesn't break anything
> else, but it works for me ok.
> Open pcm_jack.c and on the line 146 you'll find:
> write(jack->fd, buf, 1); /* for polling */
> Deleting this seems to get rid of the problem.
> So please if you can patch this out. (I didn't make a patch myself
> since this is so tiny fix that it isn't really worth.)
> Cheers.

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