[alsa-devel] Problem with CME UF5 MIDI keyboard master volume slider

[Clemens Ladisch]

Damon Chaplin wrote:
> On Wed, 2007-08-08 at 10:11 +0200, Clemens Ladisch wrote:
> > Please show the output of "amidi --dump" with some key presses after
> > you've used the master volume slider.
> 
> Here's a few key presses, then some master volume slider movement, then
> another few keypresses:
> 
> 90 2B 4A
> 80 2B 24
> 90 30 34
> 80 30 27
> 90 34 3A
> 80 34 3A
> F0 01 7F 7D
> F0 01 7F 7C
> F0 01 7F 7B
> F0 01 7F 7A
> F0 01 7F 79
> F0 01 7F 78
> F0 01 7F 77
> F0 01 7F 76
> 90 2D 29
> 80 2D 1D
> 90 30 29
> 80 30 24
> 90 34 49
> 80 34 34

All keypresses arrive correctly.

Looks like a bug in the keyboard's firmware.

Please check whether the later keypresses arrive when using aseqdump.


Regards,
Clemens