I updated my MacPro5,1 (RX580) to 2.3.2 today and now I’m faced with a black screen on boot. I can no longer see the bootpicker screen at all.
If I put in an old Apple 5770 I can get the bootpicker screen but when I choose my EFI disk, it freezes. I used the oclp sequoia usb to boot EFI and that worked, of course it’s very sluggish without the root patches for the ati card. I tried copying the EFI contents on the usb since it was 2.2.0 (what I had on my main disk prior to the 2.3.2 update), but I’m faced with the same black screen issue with the RX580.
Anybody have an idea how I can fix this or revert the 2.3.2 changes?
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