Good news, all working now:) another Focusrite Saffire Pro 24 DSP lives on.
VT-D enabled in BIOS
UEFI boot only (CSM not enabled)
DisableIOMapper - un-checked in Clover r5145 config.plst
Doug
Did you install Saffire Mix Control 3.9 and approve the request during the install about non-signed drivers from System Preferences > Security & Privacy?
I installed mix control 3.9 for my saffire pro 24 dsp today on Catalina 10.5.7 and logic 10.6.3, no prompt about signed drivers. All working...
Microsoft PS2 keyboard working great for me, I installed these - http://www.kexts.com/view/1243-ps2_lion_kexts.html
copy the 2 files to /System/Library/Extensions
then use Kext Utility - http://www.kexts.com/view/1341-kext_uti ... pdate.html - to service S/L/E for you.
(ps - I have a spare USB...
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