pro tools driver for focusrite 2i4 2nd gen mac high sierra

Pro Tools For Focusrite 2I4 2Nd Gen High Sierra Driver For USBaudio
Pro Tools For Focusrite 2I4 2Nd Gen High Sierra Mac Running Sierra

I just thought that I should share my fix, because the 2i4 and 2i2 are very common devices.

Thanks so i stay with sierra now, cause i have so many v9 projects with 32 bit plugins.

So i will go with 32lives and convert my projects to Logic X.So much work:-.

Its something in the plugs coding maybe related to some old carbon platform or something.

As usual, I did use force au validation utility to get some stubborn ones validated.

More reports: Soundtoys - working but presets are out of order as mentioned.

Native Instruments - Reaktor, Battery and Massive are working fine despite NIs warning not to upgrade.

Not music related, but Im sure Im not the only one who plays.

They also sent me a Firmware downgrade to temporarily fix the problem with High Sierra (but it causes incompatibility with Sierra).

They also commented on my fix, as described below, being a good temporary solution.

The lag sounded like a full second, regardless of buffer size or softwareDAW in use.

Pro Tools For Focusrite 2I4 2Nd Gen High Sierra Mac Running Sierra

I fixed it by replacing the AppleUSBAudio.kext from SystemLibraryExtensions with one from a mac running Sierra (12.6).

Now everything is sweet again at all sample rates.

Pro Tools For Focusrite 2I4 2Nd Gen High Sierra Driver For USBaudio

There clearly is something wrong in apples new driver for USBaudio or in Focusrites current firmware.

This is how I did it: First of all I made a backup of my current driver (AppleUSBAudio.kext from systemlibraryextensions).

The Scarlett 2i4 (2nd gen) is a class compliant device and doesnt require a driver from the manufacturer.

I copied a version of AppleUSBAudio.kext from another mac running Sierra (12.6) to my desktop 2.

I disabled SIP on my mac in recovery mode (cmdr on reboot) using terminal with the command: csrutil disable rebooted after that this step allowed me to replace my current driver 3.

I unloaded the High Sierra AppleUSBAudio.kext with: sudo kextunload SystemLibraryExtensionsAppleUSBaudio.kext 4.

I deleted the driver with: sudo rm -rf SystemLibraryExtensionsAppleUSBaudio.kext 5.

I installed the Sierra (12.6) version of the driver, using KextBeast 2.0.1 (downloaded from tonymacx86.com) this is a simple kext installer, which installs the driver from the desktop to SystemLibraryExtensions 6.

Huub.

I agree, Huub.

I would not have done it, if there hadnt been a specific issue with my interface.

Pro Tools Driver For Focusrite 2I4 2Nd Gen Mac High Sierra