RE: hdsp and midi problems

["Mark Knecht" <mknecht@controlnet.com>]

 > Marcus,
> >    The HDSP 9652 MIDI interface has (for me under Linux) always
> dropped lots
> > of notes. Mostly I find it interesting that it drops note off
> information
> > and doesn't seem to drop note-on. I cannot be sure how well it handles
> > controller information.
>
> do you mean dropping notes in reading MIDI?
> well, IIRC, you reported also that the behavior of MIDI out is
> strange...  oh sigh.

Yes, but I tested Alsa (a long time ago) with both MIDI-IN driving soft
synths, and then MIDI-IN/MIDI-OUT driving hardware synths and got the same
'note stuck on' problem. For that reason I say it's a 'MIDI-IN dropped note'
problem, but certainly I do not know this for sure.

>
> dropping a note is surely a bug of the driver.
> unless the FIFO overflows, no dropping should happen.
>
> btw, could you try the attached patch?
> (and in-advance-scheduled excuse if it causes a hang-up :)
>

I would be happy to try a bit of patching. However, I am on
Redhat/PlanetCCRMA and Gentoo, both of which provide prebuilt Alsa
environments. I can try patching the Gentoo one which is pretty recent, but
it may take a few days before I can get back to you.




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