Recent content by spykor

Hi! I tried your suggestion and unfortunately it didn't work. I installed Ventura on a small spare SSD. I used the kexts you suggested and did the OCLP routine. I used -amd_no_dgpu_accel boot argument to boot without graphics acceleration and install OCLP app. The non-accelerated system...

Thanks for your response. I will try to install Ventura on a small spare SSD and see what happens. Last time I tried that, I ws not able to finish the installation. we'll see what happens this time (I'll use your proposed extra kexts). I am going out of town for the weekend, so I'll work on it...

Thank a lot for all your help! I did what you say in your above message but...something "does not compute" LOL. I installed CryptexFixup.kext and AMFIPass.kext in my EFI/OC kexts list and config.plist and also the -amd_no_dgpu_accel boot argument in my current Monterey EFI/OC installation. I...

The 1st video shows just the messages of the display. A message aknowledging the pressence of Display Port and the bottom messages are the screen's messages regarding display characteristics and controls. Have nothing to do with the system GPU init process. The GPU and Display are connected with...

Good evening! I did what you said and I am posting 2 videos from (failed) Monterey boot attempt. In the 2nd video near the end there are some messages, but I don't think they are relevant to the problem (failure to land the Login Screen).

Hi guys. Thanks for your help. I cannot record what is happenign during the Login Screen crash stage, because I cannot login into the system to have recorded logs. When I try to login normally (accelarated GPU) the system displays the Apple logo (accelerated) and immediately after that the...

ChatGPT told me something similar. I'll try to see what I posted there regarding System messages and post them for you to see if you can pinpoint something. Thanks. I'll get back when I return on September.

Thanks. I'll try it when I return on September

OK, I'm back. Sorry, it didn't work. I tried your code in OC config.plist an the flags in boot args but the problem persists. I see that the GPU is recognised and there is acceleration, because I see the Apple logo in accelerated graphics but immediately after that, the screen goes blank...

OK, thanks! I'll try it

Thanks a lot for your response. I checked you attached EFI and the rtesult is still the same. Now, some info about my GPU card nad couple of questions. My graphics card is Sapphire NITRO+ Radeon RX 590 Special Edition 8GB DDR5. Does it mean anything about what it needs to be functional in...

Hi. I have an almost identical system with you (Gigabyte 990XA-UD3, FX-6300 CPU and Radeon RX590 GPU) and similar problems. How did you manage to make Monterey work by using R9 270 GPU. I bought a Radeon R9 270X second hand and installed it, but it's not recognized by Big Sur. Ii does not have...

Back again! Stoll struggling with Monterey on my system. Problem persists. Anybody solved it? The problem manifests itself at the moment the system reaches Login Screen. I entered relevant information in ChatGPT but have not been able to pinpoint what causes the problem. Anybody else managed to...

I have fixed all the possible problems for EFI/OC setup. I attach the latest EFI, but the problem remains. No graphics acceleration. When booting process reaches the point to open the login screen the system goes to black screen and the display goes between black screen and some display info...

This is the latest EFI based on OC 0.98 which seems to be normal, but it only works without GPU acceleration