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Trouble with MT4


robbzz11

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Hi

 

Can Anybody help

 

Just moved house set up my system as before and now logic wont recognise my Mt4

midi interface. I changed nothing just moved house !!

I only use a sound canvas for midi and logic keeps giving me the following message.

Which apart from anthing else is bad english. !!

 

"Instrument Sound Canvas sent to midi port 1 of midi interface Mt4 which no more exists"

 

if i click ok Logic then tells me that "MAC OS X Midi services not available"

 

on starup Logic seems to be recognising the MT4 as the midi out leds light

 

Anybody got any idea whats happened.

 

I re-enstalled the hardware driver but it hasn't helped

 

Regards

 

Robb Marriott

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is your MT|4 on a bus w/ other usb devices?

 

try plugging it into its own slot (don't chain it). does the problem still remain?

 

on occasion the usb bus doesn't have enough juice to power multiple bus powered devices. and while the device is still powered it does not relate correctly to your computer.

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Hi

First.... thanks for the help.

 

 

Ok I downloaded the latest midi driver as suggested and Unitor8 and installed the

e magic driver then

 

When i open Unitor 8 control (I am assuming this also controls the MT4)

 

I just get

" There are no midi outputs available please configure the communication

preferences"

 

all the green leds light for a sec on the MT4 so it is communicating i guess

but it just wont recognise my sound canvas.

 

Also as suggested ran disk utility and repaired permissions.

 

Any more help would be appreciated.

 

Regards

 

Robb Marriott

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Hi David

 

I am not getting anywhere with this problem.

 

do you think i should cut my losses and reinstall OS X and logic again ??

 

it seems such drastic step to solve what should be a simple problem.

Am i missing somthing fundementaly simple ??

 

any help right now would be appreciated

 

Robb Marriott

 

UK

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First thing: backup everything!

 

Then try these:

 

1) Try creating a new account "TEST" and see if you can get it to work in there?

 

2) Try resetting the PRAM and NVRAM

 

1. Shut down the computer.

2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.

3. Turn on the computer.

4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.

5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.

6. Release the keys.

 

3) Open a Terminal window and type:

 

sudo update_prebinding -root / -force

 

then hit return and wait until it stops. ( a few minutes...)

 

4) Open /Applications/Utilities/Disk Utility, select your system volume and repair permissions.

 

5) Shut down, and physically unplug the computer for 10 mn. Restart.

 

If all the above fails, I would try to reinstall OS X. Best of luck!

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Hi David

 

Thanks once again for your help.

 

I’m not a big apple user only for my music (have my PC to type and send this)

 

 

I have a few dumb of questions for you LOL

 

How do I create a new account ??

 

Command-Option keys I guess you mean the Alt and Apple keys as marked up on my keyboard. ?

 

What is a Terminal window and how do I open it ?

 

Also if I have to re-install 0X sys will I also have to re-install Logic?

 

Kind Regards

 

Robb Marriott

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Also if I have to re-install 0X sys will I also have to re-install Logic?

Yes, but it's a pretty fast and straight-ahead process. Just make sure you BACK-UP ALL YOUR FILES!

 

As for the other suggestions, I would skip them if you don't know what you're doing.... it will be faster to just re-install everything.

 

Good luck!

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