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I have the MOTU UltraLite mk5 which also stopped working after upgrading to Sonoma, but I was able to update the driver/firmware to get it going again. It now works fine :thumbup:

The issue turned out to be with the power supply, which was quite old. The machine started randomly shutting off while I was using it, which I thought likely to be a power problem since I hadn't made any changes to it. I switched to integrated graphics only and the shutoffs stopped happening...

I have the GIGABYTE Z390 Aorus Pro WIFI. While troubleshooting a different sleep issue, I foolishly decided to upgrade the UEFI firmware from version F11 to F12. GIGABYTE does advise that this is an irreversible update due to the addition of some cryptographic signature scheme for the firmware...

for anyone else who encounters a similar issue, the way I finally fixed it was to switch from iMac19,1 to iMacPro1,1 SMBIOS. I looked at the kernel logs after the issue happened, and each time I saw a message about "IGPU hang" from IOAcceleratorFamily2. Unfortunately, I don't think I saved the...

I got around my display sleep issue, but not by using the EFI directory posted in this thread. I will try to summarize the steps I took here. I get an early boot failure when trying to boot using the EFI directory posted in this thread, when booted from a USB stick. I used a previously working...

I only zipped the OC directory, and excluded the "Tools" and "Drivers" since those do not seem relevant here, they are exactly what's in the OpenCore 0.8.7 DEBUG zip file. I figured that would be pretty obvious but I apologize for the confusion.

Thanks @esafeddie, I attached my zipped OC directory here. I disabled automatically sleeping (I think) with sudo pmset displaysleep 0 sudo pmset sleep 0 and shut it down last night. Today when I started it up in the morning, the issue seems not to happen. I am going to put those settings back to...

I upgraded from Monterey to Ventura, and after a while realized that my installed version of WhateverGreen was too old (I had 1.5.8) to be loaded when running Ventura. Surprisingly to me, the machine still booted and everything worked except hardware accelerated JPEG decoding. I tried a couple...

i was also able to get speedstep working on my system (i5-750, GA-P55M-UD2) using the iMac12,2 system definition, thanks idimdim. curious how people figure these out. do you try to find a mac model with the same/similar processor and chipset?

+1 to the above, had to set the clock back to 2017 to install el capitan, apparently apple wants to punish people with an incomprehensible error message when you try to install an older OS

tonymacx86 Build - GA-P55M-UD2 - Core i5-750 - 8800 GT Just upgraded to lion on this build with the help of the tonymacx86 DSDT, the machine won't sleep though, it just turns off completely when i click sleep. Also, the new HWMonitor App only shows my hard drive temperature? i installed the...

tonymacx86 Build - GA-P55M-UD2 - Core i5-750 - 8800 GT any tips for mountain lion on this build? i originally built it in early 2010 with SL, and it worked perfectly until i tried to upgrade to lion, which messed up my SL install badly. I just want to make pretty sure that it will work before I...

well i updated to F10 and the same thing happens. I loaded optimized defaults, set PCH SATA to AHCI, set HPET to 64-bit, tried safe mode and cpus=1, still kernel panic due to evoreboot.

will do.

well the disk is a copy of my friends retail disk, but i've used it to install onto a macbook and it works fine. the bios version is F6. thanks for the quick reply :)

I've attempted Snow Leopard using both iBoot-Supported and iBoot-Nvidia, and with both bootloaders i get a KP relating to evoreboot.kext. I set my CMOS parameters as described, with SATA to AHCI mode, and HPET to 64-Bit. Any ideas? Thanks in advance.