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Using a Presonus Quantum Thunderbolt 2 Audio Interface...HELP

Are you

Are you using the latest driver from Oct 22, 2019 "Universal Control v3.1.1.54569"?

Is the quantum_driver.kext in /System/Library/Extensions or /Library/Extensions? I think the default location is /Library/Extensions. If both exist, delete the one in /System/Library/Extensions.

Install the driver normally. Check that only one copy of it exists in /Library/Extensions.

The following will download the latest driver, extract the files to a new presonus folder in your home folder, modify the quantum_driver.kext, install it, load it, and rebuild the kext cache. You can copy this into a BBEdit worksheet file, select all, press enter to execute the selection. Or use Terminal.app.

Code:
[ -d ~/presonus ] || mkdir ~/presonus
cd ~/presonus
curl -s 'https://pae-web.presonusmusic.com/downloads/products/dmg/Universal_Control_3_1_1_54569.dmg' > Universal_Control_3_1_1_54569.dmg
hdiutil attach Universal_Control_3_1_1_54569.dmg
pkgutil --expand-full /Volumes/PreSonus\ Universal\ Control/PreSonus\ Universal\ Control.pkg PreSonus\ Universal\ Control
cp -R PreSonus\ Universal\ Control/TB\ Audio\ Driver.pkg/Payload/Library/Extensions/quantum_driver.kext quantum_driver.kext
plutil  -insert 'IOKitPersonalities.Quantum1.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist
plutil  -insert 'IOKitPersonalities.Quantum2.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist
plutil  -insert 'IOKitPersonalities.Quantum2626.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist
plutil  -insert 'IOKitPersonalities.Quantum4848.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist

mount | grep ' on / ' | grep 'read-only' && sudo mount -uw /
[[ -d /quantum_driver.kext ]] && sudo rm -R /quantum_driver.kext
sudo cp -R quantum_driver.kext /quantum_driver.kext
cd /
sudo chown -R root:wheel quantum_driver.kext
sudo find quantum_driver.kext -type d -exec /bin/chmod 0755 {} \;
sudo find quantum_driver.kext -type f -exec /bin/chmod 0644 {} \;
[[ -d /System/Library/Extensions/quantum_driver.kext ]] && sudo rm -R /System/Library/Extensions/quantum_driver.kext
[[ -d /Library/Extensions/quantum_driver.kext ]] && sudo rm -R /Library/Extensions/quantum_driver.kext
sudo mv quantum_driver.kext /Library/Extensions
sudo kextload -v 6 /Library/Extensions/quantum_driver.kext
sudo kextcache -i /
echo "done"
Hi @joevt,

I have a x570 Taichi paired with Titan Ridge TB3 Card, TB is working but my Presonus quantum 4848 is not... I tryed your code, but unfurtunatly BigSur has protected the drives and I can not pass through "mount | grep ' on / ' | grep 'read-only' && sudo mount -uw /" since I have this error:

mount_apfs: volume could not be mounted: Permission denied
mount: / failed with 66

I cant get pass this, by any chance do you have the quantum_driver.kext already edit so I can just install it?
Or another solution?

Many thanks!
 
Hi @joevt,

I have a x570 Taichi paired with Titan Ridge TB3 Card, TB is working but my Presonus quantum 4848 is not... I tryed your code, but unfurtunatly BigSur has protected the drives and I can not pass through "mount | grep ' on / ' | grep 'read-only' && sudo mount -uw /" since I have this error:

mount_apfs: volume could not be mounted: Permission denied
mount: / failed with 66

I cant get pass this, by any chance do you have the quantum_driver.kext already edit so I can just install it?
Or another solution?

Many thanks!
In Big Sur, we don't have access to the root directory / so we need to modify the commands that use that directory.
First, remove the mount command because Big Sur won't allow us to mount the root directory as writable.
Make a temporary directory, to copy the kext to.
Also, in Big Sur, we can't install to /System/Library/Extensions so might as well remove that.
kextload and kextcache are probably useless in Big Sur too.

Code:
[ -d ~/presonus ] || mkdir ~/presonus
cd ~/presonus
curl -s 'https://pae-web.presonusmusic.com/downloads/products/dmg/Universal_Control_3_1_1_54569.dmg' > Universal_Control_3_1_1_54569.dmg
hdiutil attach Universal_Control_3_1_1_54569.dmg
pkgutil --expand-full /Volumes/PreSonus\ Universal\ Control/PreSonus\ Universal\ Control.pkg PreSonus\ Universal\ Control
cp -R PreSonus\ Universal\ Control/TB\ Audio\ Driver.pkg/Payload/Library/Extensions/quantum_driver.kext quantum_driver.kext
plutil  -insert 'IOKitPersonalities.Quantum1.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist
plutil  -insert 'IOKitPersonalities.Quantum2.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist
plutil  -insert 'IOKitPersonalities.Quantum2626.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist
plutil  -insert 'IOKitPersonalities.Quantum4848.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist

tempdir="$(maketemp -d)"
sudo cp -R quantum_driver.kext "$tempdir/quantum_driver.kext"
cd "$tempdir"
sudo chown -R root:wheel quantum_driver.kext
sudo find quantum_driver.kext -type d -exec /bin/chmod 0755 {} \;
sudo find quantum_driver.kext -type f -exec /bin/chmod 0644 {} \;
[[ -d /Library/Extensions/quantum_driver.kext ]] && sudo rm -R /Library/Extensions/quantum_driver.kext
sudo mv quantum_driver.kext /Library/Extensions
echo "done"

Once it's installed, go to System Preferences.app, select Security & Privacy preferences panel, allow the new kext. Restart.
 
In Big Sur, we don't have access to the root directory / so we need to modify the commands that use that directory.
First, remove the mount command because Big Sur won't allow us to mount the root directory as writable.
Make a temporary directory, to copy the kext to.
Also, in Big Sur, we can't install to /System/Library/Extensions so might as well remove that.
kextload and kextcache are probably useless in Big Sur too.

Code:
[ -d ~/presonus ] || mkdir ~/presonus
cd ~/presonus
curl -s 'https://pae-web.presonusmusic.com/downloads/products/dmg/Universal_Control_3_1_1_54569.dmg' > Universal_Control_3_1_1_54569.dmg
hdiutil attach Universal_Control_3_1_1_54569.dmg
pkgutil --expand-full /Volumes/PreSonus\ Universal\ Control/PreSonus\ Universal\ Control.pkg PreSonus\ Universal\ Control
cp -R PreSonus\ Universal\ Control/TB\ Audio\ Driver.pkg/Payload/Library/Extensions/quantum_driver.kext quantum_driver.kext
plutil  -insert 'IOKitPersonalities.Quantum1.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist
plutil  -insert 'IOKitPersonalities.Quantum2.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist
plutil  -insert 'IOKitPersonalities.Quantum2626.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist
plutil  -insert 'IOKitPersonalities.Quantum4848.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist

tempdir="$(maketemp -d)"
sudo cp -R quantum_driver.kext "$tempdir/quantum_driver.kext"
cd "$tempdir"
sudo chown -R root:wheel quantum_driver.kext
sudo find quantum_driver.kext -type d -exec /bin/chmod 0755 {} \;
sudo find quantum_driver.kext -type f -exec /bin/chmod 0644 {} \;
[[ -d /Library/Extensions/quantum_driver.kext ]] && sudo rm -R /Library/Extensions/quantum_driver.kext
sudo mv quantum_driver.kext /Library/Extensions
echo "done"

Once it's installed, go to System Preferences.app, select Security & Privacy preferences panel, allow the new kext. Restart.
Life saver!

Success!
 
In Big Sur, we don't have access to the root directory / so we need to modify the commands that use that directory.
First, remove the mount command because Big Sur won't allow us to mount the root directory as writable.
Make a temporary directory, to copy the kext to.
Also, in Big Sur, we can't install to /System/Library/Extensions so might as well remove that.
kextload and kextcache are probably useless in Big Sur too.

Code:
[ -d ~/presonus ] || mkdir ~/presonus
cd ~/presonus
curl -s 'https://pae-web.presonusmusic.com/downloads/products/dmg/Universal_Control_3_1_1_54569.dmg' > Universal_Control_3_1_1_54569.dmg
hdiutil attach Universal_Control_3_1_1_54569.dmg
pkgutil --expand-full /Volumes/PreSonus\ Universal\ Control/PreSonus\ Universal\ Control.pkg PreSonus\ Universal\ Control
cp -R PreSonus\ Universal\ Control/TB\ Audio\ Driver.pkg/Payload/Library/Extensions/quantum_driver.kext quantum_driver.kext
plutil  -insert 'IOKitPersonalities.Quantum1.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist
plutil  -insert 'IOKitPersonalities.Quantum2.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist
plutil  -insert 'IOKitPersonalities.Quantum2626.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist
plutil  -insert 'IOKitPersonalities.Quantum4848.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist

tempdir="$(maketemp -d)"
sudo cp -R quantum_driver.kext "$tempdir/quantum_driver.kext"
cd "$tempdir"
sudo chown -R root:wheel quantum_driver.kext
sudo find quantum_driver.kext -type d -exec /bin/chmod 0755 {} \;
sudo find quantum_driver.kext -type f -exec /bin/chmod 0644 {} \;
[[ -d /Library/Extensions/quantum_driver.kext ]] && sudo rm -R /Library/Extensions/quantum_driver.kext
sudo mv quantum_driver.kext /Library/Extensions
echo "done"

Once it's installed, go to System Preferences.app, select Security & Privacy preferences panel, allow the new kext. Restart.
Sorry maybe I was to fast to call it a success.
It turns out it works but as soon as play audio I can only play it for -+ 30 seconds and then I hear a beep sound, everithyng freezes and my hackintosh restarts.

Anyone know any sonutions to this?
I have a X570 Taichi with a 6800XT and a Titan Ridge TB3
Bigsur 11.4, OpenCore 0.6.8

Thanks!
 
Sorry maybe I was to fast to call it a success.
It turns out it works but as soon as play audio I can only play it for -+ 30 seconds and then I hear a beep sound, everithyng freezes and my hackintosh restarts.

Anyone know any sonutions to this?
I have a X570 Taichi with a 6800XT and a Titan Ridge TB3
Bigsur 11.4, OpenCore 0.6.8

Thanks!
@joevt ,

Have you had this problem before?
 
I don't have any Thunderbolt audio devices that are not just USB.
 
Anyone had success with the new Universal Control 3.6? Now it installs the kext differently. While the newer driver does not explicitly require IOPCITunnelled property to detect the interfaces, it just freezes on playback.
 
Something weird about getting the driver from 3.6 to go through. I'm using 3.5's driver and UC 3.6 at the moment. Still on Mojave here.

This is what I input:

[ -d ~/presonus ] || mkdir ~/presonus cd ~/presonus curl -s '[URL]https://pae-web.presonusmusic.com/downloads/products/dmg/PreSonus_UniversalControl_Installer_v3.6.0.66460.dmg[/URL] ' > PreSonus_UniversalControl_Installer_v3.6.0.66460.dmg hdiutil attach PreSonus_UniversalControl_Installer_v3.6.0.66460.dmg pkgutil --expand-full /Volumes/PreSonus\ Universal\ Control/PreSonus\ Universal\ Control.pkg PreSonus\ Universal\ Control cp -R PreSonus\ Universal\ Control/TB\ Audio\ Driver.pkg/Payload/Library/Extensions/quantum_driver.kext quantum_driver.kext plutil -insert 'IOKitPersonalities.Quantum1.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist plutil -insert 'IOKitPersonalities.Quantum2.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist plutil -insert 'IOKitPersonalities.Quantum2626.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist plutil -insert 'IOKitPersonalities.Quantum4848.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist mount | grep ' on / ' | grep 'read-only' && sudo mount -uw / [[ -d /quantum_driver.kext ]] && sudo rm -R /quantum_driver.kext sudo cp -R quantum_driver.kext /quantum_driver.kext cd / sudo chown -R root:wheel quantum_driver.kext sudo find quantum_driver.kext -type d -exec /bin/chmod 0755 {} \; sudo find quantum_driver.kext -type f -exec /bin/chmod 0644 {} \; [[ -d /System/Library/Extensions/quantum_driver.kext ]] && sudo rm -R /System/Library/Extensions/quantum_driver.kext [[ -d /Library/Extensions/quantum_driver.kext ]] && sudo rm -R /Library/Extensions/quantum_driver.kext sudo mv quantum_driver.kext /Library/Extensions sudo kextload -v 6 /Library/Extensions/quantum_driver.kext sudo kextcache -i / echo "done"

This is what happens

Abbys-iMac-Pro:presonus abby$ [ -d ~/presonus ] || mkdir ~/presonus Abbys-iMac-Pro:presonus abby$ cd ~/presonus Abbys-iMac-Pro:presonus abby$ curl -s 'https://pae-web.presonusmusic.com/downloads/products/dmg/PreSonus_UniversalControl_Installer_v3.6.0.66460.dmg ' > PreSonus_UniversalControl_Installer_v3.6.0.66460.dmg hdiutil attach PreSonus_UniversalControl_Installer_v3.6.0.66460.dmg pkgutil --expand-full /Volumes/PreSonus\ Universal\ Control/PreSonus\ Universal\ Control.pkg PreSonus\ Universal\ Control cp -R PreSonus\ Universal\ Control/TB\ Audio\ Driver.pkg/Payload/Library/Extensions/quantum_driver.kext quantum_driver.kext plutil -insert 'IOKitPersonalities.Quantum1.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist plutil -insert 'IOKitPersonalities.Quantum2.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist plutil -insert 'IOKitPersonalities.Quantum2626.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist plutil -insert 'IOKitPersonalities.Quantum4848.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist mount | grep ' on / ' | grep 'read-only' && sudo mount -uw / [[ -d /quantum_driver.kext ]] && sudo rm -R /quantum_driver.kext sudo cp -R quantum_driver.kext /quantum_driver.kext cd / sudo chown -R root:wheel quantum_driver.kext sudo find quantuAbbys-iMac-Pro:presonus abby$ hdiutil attach PreSonus_UniversalC_v3.6.0.66460.dmg /dev/disk4 GUID_partition_scheme /dev/disk4s1 Apple_HFS /Volumes/PreSonus Universal Control 2 Abbys-iMac-Pro:presonus abby$ pkgutil --expand-full /Volumes/PreSonus\ Universal\ Control/PreSonus\ Universal\ Control.pkg PreSonus\ Universal\ Control Could not unarchive /Volumes/PreSonus Universal Control/PreSonus Universal Control.pkg (The operation couldn’t be completed. File exists) Abbys-iMac-Pro:presonus abby$ cp -R PreSonus\ Universal\ Control/TB\ Audio\ Driver.pkg/Payload/Library/Extensions/quantum_driver.kext quantum_driver.kext Abbys-iMac-Pro:presonus abby$ plutil -insert 'IOKitPersonalities.Quantum1.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist quantum_driver.kext/Contents/Info.plist: Could not modify plist, error: Value true already exists at key path IOKitPersonalities.Quantum1.IOPCITunnelled Abbys-iMac-Pro:presonus abby$ plutil -insert 'IOKitPersonalities.Quantum2.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist quantum_driver.kext/Contents/Info.plist: Could not modify plist, error: Value true already exists at key path IOKitPersonalities.Quantum2.IOPCITunnelled Abbys-iMac-Pro:presonus abby$ plutil -insert 'IOKitPersonalities.Quantum2626.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist quantum_driver.kext/Contents/Info.plist: Could not modify plist, error: Value true already exists at key path IOKitPersonalities.Quantum2626.IOPCITunnelled Abbys-iMac-Pro:presonus abby$ plutil -insert 'IOKitPersonalities.Quantum4848.IOPCITunnelled' -bool true quantum_driver.kext/Contents/Info.plist quantum_driver.kext/Contents/Info.plist: Could not modify plist, error: Value true already exists at key path IOKitPersonalities.Quantum4848.IOPCITunnelled Abbys-iMac-Pro:presonus abby$ mount | grep ' on / ' | grep 'read-only' && sudo mount -uw / Abbys-iMac-Pro:presonus abby$ [[ -d /quantum_driver.kext ]] && sudo rm -R /quantum_driver.kext sudo cp -R quantum_driver.kext /quantum_driver.kext cd / sudo chown -R root:wheel quantum_driver.kext sudo find quantum_driver.kext -type d -exec /bin/chmod 0755 {} \; sudo find quantum_driver.kext -type f -exec /bin/chmod 0644 {} \; [[ -d /System/Library/Extensions/quantum_driver.kext ]] && sudo rm -R /System/Library/Extensions/quantum_driver.kext [[ -d /Library/Extensions/quantum_driver.kext ]] && sudo rm -R /Library/Extensions/quantum_driver.kext sudo mv quantum_driver.kext /Library/Extensions sudo kextload -v 6 /Library/Extensions/quantum_driver.kext sudo kextcache -i / echo "done" Abbys-iMac-Pro:presonus abby$ sudo cp -R quantum_driver.kext /quantum_driver.kext Abbys-iMac-Pro:presonus abby$ cd / Abbys-iMac-Pro:/ abby$ sudo chown -R root:wheel quantum_driver.kext Abbys-iMac-Pro:/ abby$ sudo find quantum_driver.kext -type d -exec /bin/chmod 0755 {} \; Abbys-iMac-Pro:/ abby$ sudo find quantum_driver.kext -type f -exec /bin/chmod 0644 {} \; Abbys-iMac-Pro:/ abby$ [[ -d /System/Library/Extensions/quantum_driver.kext ]] && sudo rm -R /System/Library/Extensions/quantum_driver.kext Abbys-iMac-Pro:/ abby$ [[ -d /Library/Extensions/quantum_driver.kext ]] && sudo rm -R /Library/Extensions/quantum_driver.kext Abbys-iMac-Pro:/ abby$ sudo mv quantum_driver.kext /Library/Extensions Abbys-iMac-Pro:/ abby$ sudo kextload -v 6 /Library/Extensions/quantum_driver.kext Kext user-space log filter changed from 0xff2 to 0xfff. Kext kernel-space log filter changed from 0xff2 to 0xfff. Requesting load of /Library/Extensions/quantum_driver.kext. /Library/Extensions/quantum_driver.kext loaded successfully (or already loaded). Abbys-iMac-Pro:/ abby$ sudo kextcache -i / Kext with invalid signatured (-67030) allowed: <OSKext 0x7fbfd7701160 [0x7fff895eb8e0]> { URL = "file:///Library/Extensions/quantum_driver.kext/", ID = "com.presonus.pae-quantum" } Kext with invalid signatured (-67062) allowed: <OSKext 0x7fbfd9417d40 [0x7fff895eb8e0]> { URL = "file:///System/Library/Extensions/lspcidrv.kext/", ID = "com.evosx86.driver.lspcidrv" } Invalid signature -67030 for kext <OSKext 0x7fbfd7701160 [0x7fff895eb8e0]> { URL = "file:///Library/Extensions/quantum_driver.kext/", ID = "com.presonus.pae-quantum" } KernelCache ID: 35E14A0720D0D56D68B34AB3222810C6 Kext with invalid signatured (-67062) allowed: <OSKext 0x7ffe46b0c0b0 [0x7fff895eb8e0]> { URL = "file:///System/Library/Extensions/lspcidrv.kext/", ID = "com.evosx86.driver.lspcidrv" } String/URL conversion failure. String/URL conversion failure. Can't stat /Library/Extensions/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext/LogiWheelForceFeedback.kext - Too many levels of symbolic links. Kext rejected due to improper filesystem permissions: <OSKext 0x7ffe46e619e0 [0x7fff895eb8e0]> { URL = "file:///Library/Extensions/LogiWheelForceFeedback.kext/", ID = "com.logitech.LogiWheelForceFeedback" } Kext with invalid signatured (-67030) allowed: <OSKext 0x7ffe4785a2a0 [0x7fff895eb8e0]> { URL = "file:///Library/Extensions/quantum_driver.kext/", ID = "com.presonus.pae-quantum" } /Library/Extensions/LogiWheelForceFeedback.kext not in base path /System/Library/Extensions for identifier->path cache. Abbys-iMac-Pro:/ abby$ echo "done" done

Thanks!
 
ok i have issues on catalina it runs ok on bigsur sound becomes choppy both uses latest 3.6 universalControl software . i am using different efi, on catalina it is clover on monteary it is oc.

both efi my other thunderbolt device works fine(tb dock) do you think it is efi folder or something else?

thanks
 
Last edited:
ok i have issues on catalina it runs ok on monteary sound becomes choppy both uses latest 3.6 universalControl software . i am using different efi, on catalina it is clover on monteary it is oc.

both efi my other thunderbolt device works fine(tb dock) do you think it is efi folder or something else?

thanks
HI y'all yes I'd like to chime in and ask @hotbullet2121 about choppy.... Choppy? Are we experiencing the same thing?
I got this to work in BigSur - PreSonus 2626 system sees it, connects and shows up in control panel to chose as an audio device. I don't really know how I got it to work; I tossed all this thread at it.
It runs under Catalina fine - but I need to run under Big Sur OR Monterey for some work compatibility issues.

Choppy equals: So in Big Sur it plays audio but ch - op - py - a - bi - it - at - a -ti -ime like on-off-in-out
Dang. I'm not any programmer, i can barely figure out to run these script/code things but hey, at least I got it this far.

What can I try next? I did notice that Big Sur and PreSonus installs things differently than before like when this thread started, so there's that observation.

Wondering if the PreSonus installer (latests) and the way Big Sur / Monterey install being different - the sip/permissions or whatever is causing the prob.
Because it never asks me to allow/approve changes in Privacy Setting - I have to fiddle with command lines to make it do that. It also does not install quantum_driver.kext in Library/Extensions - I put it there and run commands.
I saw on PreSonus this:
where if you scroll down it show the install paths - it appears Big Sur deals with drivers differently - so I think we are not getting it to install correctly.
Would installing manually work?

If it helps bump this thread along:
Mac Pro 5,1
Titan Ridge 3 flashed
OpenCore (currently from the Titan Ridge guy 0.7.6 #1 install)
I am using the same OC for both boots -[I am willing to try a different OC but I don't think that is the issue]
 
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