[LAU] ALSA ate my MIDI! (Or Something) - RESOLVED

Folderol folderol at ukfsn.org
Mon Sep 22 03:02:52 EDT 2008


On Mon, 22 Sep 2008 13:07:07 +0930
Matthew Smith <matt at smiffytech.com> wrote:

> Quoth Matthew Smith at 2008-09-22 11:07...
> > ALSA is not getting inbound data from the device although it can send
> > OK.  The keyboard works as it should under Windows, so I can only guess
> > that there is something wrong with ALSA - either a mis-configuration or
> > a bug - but I don't even know where to start looking.
> 
> Want to know what was stopping it working?  Do you?
> 
> USB hub.  Yep, a nasty little bit of $10 hardware.
> 
> The keyboard was connected through a USB hub.  When I traced through the 
> wiring, found this and plugged directly into the computer, it all 
> started working.
> 
> Any USB gurus like to tell us why that was?
> 
> Cheers
> 
> M

At a guess - some USB hubs only work at USB 1 (or so I've read)

-- 
Will J Godfrey
http://www.musically.me.uk



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