M-Audio Fast Track Ultra on El Capitan

[Joey Lee]

Originally Posted by aesc

ADDENDUM:
After more tinkering... it seems the Kext need only be in /Library/Extensions (for me)

It seems for Userland (i.e. unsigned kexts) - put them in /Library/Extensions to make it work... I suspect this for all hardware that was working under Yosemite but not in El Capitan.

It also seems that the latest kext that worked with yosemite is required.

REVISED INSTRUCTIONS:
So for any kext... get the latest and install it.

1. Go to System/Library/Extensions
2. copy the required kext
3. paste it to Library/Extensions
4. Open Terminal
5. type "cd Library/Extensions" and hit enter.
6. type "sudo chmod -R 755 copiedkextname.kext" and hit enter again.
7. type "sudo chown -R root:wheel copiedkextname.kext" and hit enter one more time
8. Reboot

Good luck

Sorry it didn't work for my Fast Track C400.

[hoss33]

Thanks for digging into this but it does not work with my M-Audio Fast Track Ultra 8R.#
System Info shows the Extension as loaded (and verified) but the hardware is not recognized.

[aesc]

Bummer.
Well try removing one kext from s/l/e ... Only need one.
Also try an unsigned kext... The unsigned one that is apparently not loaded works for me, while the signed does not.
I.e keep downgrading the driver version until it is no longer a signed developer. I have no idea why, but unsigned, unloaded but correctly permissioned kext works. Perhaps for me it's a case of random leftover system files left in random locations,
I'm sorry it doesn't seem to be working for you guys.

Also I would recommend Pacifist to extract .pkg files to get Kexts out of installer to save time. I'm convinced a random unsigned driver version may work.

Good luck and report back here

I also didn't disable sip.

[hoss33]

Originally Posted by aesc

Bummer.
Well try removing one kext from s/l/e ... Only need one.
Also try an unsigned kext... The unsigned one that is apparently not loaded works for me, while the signed does not.

Oho! Will try this on the weekend, thanks again.

[AslashA]

I have not worked this method. Fast Track Ultra

[gibbojim]

Nope I could no get this to work with my FT U 8R. But gave me some hope for a short time

[Joey Lee]

Originally Posted by aesc

Bummer.
Well try removing one kext from s/l/e ... Only need one.
Also try an unsigned kext... The unsigned one that is apparently not loaded works for me, while the signed does not.
I.e keep downgrading the driver version until it is no longer a signed developer. I have no idea why, but unsigned, unloaded but correctly permissioned kext works. Perhaps for me it's a case of random leftover system files left in random locations,
I'm sorry it doesn't seem to be working for you guys.

Also I would recommend Pacifist to extract .pkg files to get Kexts out of installer to save time. I'm convinced a random unsigned driver version may work.

Good luck and report back here

I also didn't disable sip.

This also gives me a hope. Really really appreciate. I will try this.
Anyway this AVID (or M-AUDIO) guys are really irresponsible. Can't describe how disappointing this situation is.
I will never consider to buy any product of these unprofessional companies.

[aesc]

Awww what a bummer. it works.. for m-audio fast track usb solidly. I guess Ultra is quite a lot more hit and miss. Perhaps the fact that I have both sets of drivers at the same time is the factor. I have no idea then.

Sorry I may have got your hopes up.... I guess I have enough random system files around from previous OS updates/installs and time machine stuff that I have a random mix of well hidden files that work.

Like I said the strangest thing is that my driver shows as Unloaded and unsigned.. yet works.. And I haven't disabled SIP.

Guess I am one lucky guy.... However it is worth noting that the last batch of updates were days after the release of yosemite.. so maybe Avid and release in a few days again.

Wish I could help further.

[gibbojim]

Thanks Aesc well worth a try

[franny]

Originally Posted by aesc

First weird thing is that System Information > Software > Extensions shows that I have two kexts both unsigned and apparently unloaded. Before one was loaded and one was not, but there was version mismatch.

The 1.9.5 (Fast_Track_Pro_Driver_1_9_5_Mac_83635.dmg) installer installs two different kexts:


Here's the info from System Information:

1.9.4 in /S/L/E

  Version:	1.9.4
  Last Modified:	11/17/14, 1:57 AM
  Bundle ID:	com.maudio.usb.fasttrackpro.driver
  Loaded:	No
  Get Info String:	M-Audio Fast Track Pro USB 1.9.4, Copyright © 2013 Avid Technology, Inc. All rights reserved.
  Obtained from:	Not Signed
  Kind:	Intel
  Architectures:	i386, x86_64
  64-Bit (Intel):	Yes
  Location:	/System/Library/Extensions/M-AudioFastTrackPro.kext
  Kext Version:	1.9.4
  Loadable:	No
  Signature Validation Errors:	Not Signed
  Dependencies:	Satisfied
  Signed by:	Not Signed

1.9.5 in /L/E

Version:	1.9.5
  Last Modified:	11/17/14, 1:57 AM
  Bundle ID:	com.maudio.usb.fasttrackpro.driver
  Loaded:	Yes
  Get Info String:	M-Audio Fast Track Pro USB 1.9.5, Copyright © 2013 Avid Technology, Inc. All rights reserved.
  Obtained from:	Identified Developer
  Kind:	Intel
  Architectures:	i386, x86_64
  64-Bit (Intel):	Yes
  Location:	/Library/Extensions/M-AudioFastTrackPro.kext
  Kext Version:	1.9.5
  Load Address:	18446743521853300000
  Loadable:	Yes
  Dependencies:	Satisfied
  Signed by:	Developer ID Application: Avid Technology Inc (4UYUA773XD), Developer ID Certification Authority, Apple Root CA

RE:

Originally Posted by hoss33

The reason why many drivers are not working anymore:
Apple extended the "kext signing" to drivers and only drivers from trusted sources are loaded by the El Capitan kernel, no bypass option here (like for applications in the control panel).

I also tried copying the signed one so that it was in both S/L/E & /L/E so both were loaded but I still got no sound