[LAU] USB-MIDI Controller Issues

Clemens Ladisch clemens at ladisch.de
Thu Mar 24 14:17:40 UTC 2011


Daniel Worth wrote:
> I ordered a super cheap USB midi cable <http://www.amazon.com/dp/B0017H4EBG> from
> Amazon to hook it up to my laptop. The midi cable is plug and play and
> while I still had the Roland XP-30 I hooked it up and tested it and it
> worked without issue. However, when I try to use it with the Evolution
> MK-149 I got strange unusable behavior. If playing the same not it would
> play 50% of the not properly and not send a midi off 10%. It would also play
> a wrong note 5% of the time and drop about 50% of the notes. I hooked it up
> to qmidiroute and confirmed that the midi messages themselves are getting
> messed up. Does anyone have any advice for tracking down what the issue
> is/how to correct it?

According to the reviews on the Amazon page, this cable (or at least one
of the models that are sold over this page) has buggy firmware, and from
what I can deduce from the hex dumps, it's so broken that it is not
possible to work around this in the driver.


Regards,
Clemens


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