After boot MIDIbox sends weird informations

[FantomXR]

Hey people,

when I connect my MIDIbox-Keyboard (KB-app, not NG) to my MacBook and boot the MacBook, the keyboard sends weird informations like note Off instead of note-on. If I switch off the MIDIbox and start it again after the OS has booted, it works perfectly. Do you have any ideas what is causing this issue? The fastboot-setting doesn't change anything....

Thanks,
Chris

[FantomXR]

I thought it may have something to do with the USB power. But I added a converter, so that 5V is safely provided at any time.... the issue is the same....

 

[Zam]

Hello

Any app launched at macbook startup ? like audio/midi sequencer, DAW, or any midi driver/remote software, possibly sending midi data for initialisation on a studio setup that might confuse your midibox hardware configuration ?

Best

Zam

[FantomXR]

No, nothing! Also it doesn't depend on which macbook I use... I have some of them here of other productions. Didn't test with a windows notebook yet.

If I use a USB-power-supply to boot up the midibox, it works... so this is kind of weird and I don't know where to look at...

[FantomXR]

Another problem occured: I updated my MacBook to Sierra. Now the computer needs 10-12min for boot with the MIDIbox connected. If I disconnect it, it boots much faster. Also if I'm in the OS, disconnect the MIDIbox a reconnect it again, the keyboard will not be recognized anymore till next boot....

Damn!!

[latigid on]

Lots of data being sent? 

How about if you load the default NG program with no customisation?

[FantomXR]

It runs KB and not NG. 

[latigid on]

Right, but as a test, why not try booting NG to see if it's something weird with KB or customisation?

Or are these rare problems with Mac MIDI drivers?

[FantomXR]

Okay, I did some checking.

The problem with the booting times and the connection-problem is gone if I set single_usb to 0 in the bootloader. So with 4 USB ports the Macbook boots up normally and I can connect and disconnect the midibox without any problems.

But regarding the topic-problem: This occurs only on KB. NG works fine (as far as I checked it yet). I don't think it's a mac-midi-problem, because I can see it clearly if I open MIOS Studio, that if I press down a key, it sends "(optimized)" and if I release the key it sends the note with the value... so it's working in reverse till I restart the midibox after OS-boot.