Simultaneous USB MIDI devices from multiple vendors

[Jeremy Oakes]

FWIW, I get this « not enough memory » error (on a 64Gb machine) when i start a programme using midi (Guitar Pro for example) BEFORE i fire up Cakewalk. Once i close them both then launch Cakewalk followed by Gtr Pro the error goes away. My midi device is an Oxygen 61 v4

J

[David Thiel]

1 hour ago, David Thiel said:

Obviously, I am missing the important gesture that will 'remove ghosts', which seems like a good idea.

I discovered the 'important gesture'.  A range can be selected.  Then right click "Add Device" is invoked over the range.  This tells you how many 'ghosted' devices will be nuked. 

I'm down to under 300 devices, down from 514.  System still works.  I'm still poking at the DMK25 trying to get it to work again.

[David Thiel]

I was not methodical enough to know for sure which actions got all five MIDI devices working unfortunately, but the good news is that right at this moment the DMK5, Roli Lumi, Roli Keyboard Blocks, Ultranova and NanoKontrol are all working!

Cleaning out the old device instances in Device Manager and Ghostbuster really helped.

I also discovered in my expedient haste that the DMK25 was connected through a USB powered hub instead of directly into the computer (I don't know what got into me, I know better).

I don't know how fragile this configuration will be but I how I can now get on with it.

In any case, I give thanks to everyone who contributed to this thread.  You made a big difference.

David

[David Thiel]

To close out this thread let me share a video example of a musical 'autopsy' of a cue I wrote for Alien Pinball.  Those familiar with Cakewalk will recognize the app:

 

[slartabartfast]

To manually remove ghost devices:
Log into an account that is a member of the administrators group.
Right click the start button (virtual button that looks like windows logo bottom left screen) to pop up a menu
select device manager to open device manager
In the device manager window: click on "view" to open a dropdown menu and check "show hidden devices"
unconnected (ghost devices) will show as a subtly transparent ghostlike icon image
you can confirm by right clicking the device icon and selecting properties 
ghosts will show as presently not connected
you can then delete the devices that are not actively connected.

If removing those ghost devices does not help, you might try physically disconnecting your keyboards, deleting those keyboards from device manager and re-installing them one by one to see if that helps.

[Byron Dickens]

Awesome you got it working.

I was going to suggest next that if any of these keyboard controllers have traditional 5 pin DIN connectors to try hooking them up that way through a MIDI interface.

[John Vere]

5 hours ago, slartabartfast said:

To manually remove ghost devices:
Log into an account that is a member of the administrators group.
Right click the start button (virtual button that looks like windows logo bottom left screen) to pop up a menu
select device manager to open device manager
In the device manager window: click on "view" to open a dropdown menu and check "show hidden devices"
unconnected (ghost devices) will show as a subtly transparent ghostlike icon image
you can confirm by right clicking the device icon and selecting properties 
ghosts will show as presently not connected
you can then delete the devices that are not actively connected.

If removing those ghost devices does not help, you might try physically disconnecting your keyboards, deleting those keyboards from device manager and re-installing them one by one to see if that helps.

He got all that way back when in from watching my video. But then the OP used a 3rd party clean up tool as well. But I'm not sure that was actually nessassary. 

I think this type of stuff is why I like to install a new OS drive every 4 or 5 years and start fresh.