Problem with MIDI-device

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THambrecht
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2011/08/25 08:58:03 (permalink)

Problem with MIDI-device

I have a A-500S keyboard (Cakewalk) permanent connected to my computer.
All 1 - 4 hour I get a message: "The above MIDI device was disconnected from your system ...". 1 to 4 hour later I get the next message, ... "a new device was found".
I have the same problem with the keyboard Edirol PCR M1. The displays on the keyboards are always on.
There is no problem with my drum-controller AkAI MPD32.
 
Whenever I need the A-500S keyboard (or Edirol) I cannot play, I get no sound.  
Then I have 2 or 3 times to unplug and replug the keyboard(s) before I get a sound.
(All cakewalk versions, different USB-cables, different connections)
  
Is this a problem with windows 7(x64), cakewalk or sleeping USB-bus ???
Has anyone the same problem or a solution?
 

We digitize tapes, vinyl, dat, md ... in broadcast and studio quality for publishers, public institutions and individuals.
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#1

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    brundlefly
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    Re:Problem with MIDI-device 2011/08/25 10:45:24 (permalink)
    Go to the Power Management tab of each USB Hub in Device Manager, and uncheck the box to "Allow the computer to turn of this device...".

    SONAR Platinum x64, 2x MOTU 2408/PCIe-424  (24-bit, 48kHz)
    Win10, I7-6700K @ 4.0GHz, 24GB DDR4, 2TB HDD, 32GB SSD Cache, GeForce GTX 750Ti, 2x 24" 16:10 IPS Monitors
    #2
    gcolbert
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    Re:Problem with MIDI-device 2011/08/25 11:16:33 (permalink)
    If the power management settings (brundlefly's previous post) don't address it, you may have a defective USB cable or port.  Try a different USB cable plugged into a different port.
    #3
    konradh
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    Re:Problem with MIDI-device 2011/08/25 12:19:55 (permalink)
    Thanks for the power management suggestion.  I have this same issue with an M-Audio Key Rig 49 and and Akai LPK 25 and did not know what was wrong.

    This may also explain why my blue-tooth wireless computer keyboard sometimes goes away.
    #4
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