Still having black screen problem with Sapphire Pulse Radeon RX 580 and High Sierra.
Long post here, but I want to be clear on what I've tried already to get this working.
If this is not the correct thread, please direct me to the best place to post this.
Like quite a few people here, I purchased and installed the recommended Sapphire Pulse Radeon RX 580 8GB believing it would work out of the box with High Sierra.
When it didn't, I then found there were many threads and hundreds of posts with people trying to solve the issue where the screen goes black during boot.
I have been reading these threads for a few weeks now, and trying things. None have succeeded. I have also searched to see if the issue has been solved for my specific MB (ASUS Sabertooth X79) and come up empty.
I was trying some things that had worked for others, but this was a bit of trying blindly. Also, after a while the number of permutations of things to try grew so quickly this became impractical.
I will list what I have already tried here, in the hopes that someone can provide an intelligent next step.
Thank you for your support. This community is amazing, helping me get this build up and running in 2015, when I was brand new to this. I'm still a newbie, but hopefully someone can help me out.
What I've done:
First I
updated my Clover/Yosemite build to High Sierra. In doing so I updated my system definition to iMac14,2, as recommended. I got the system working and tested using my old graphics card (EVGA GeForce GTX 760).
I also did a fresh install of High Sierra on a separate drive I use for recovery and backing up my main drive. I made sure this system was also working, and created a backup of my primary installation.
I uninstalled all Nvidia drives, since my understanding is that these are no longer necessary in High Sierra.
In case anyone is wondering, the old graphics card was sometime failing a bit... the screen would become blocky and unintelligible. Mostly when I was doing heavy animation rendering. But I am coming into a busy season of work, so I decided rather than replace it this would be a good time to upgrade my OS and graphics card.
So first I simply installed the card with my existing setup, and halfway through boot (where the display would reset) got a black screen. I tried this with the physical "comp/gaming" switch on the card in both positions. Same result.
I tried Clover boot options: With and without Nvidia web drivers, safe mode.
Many threads said the CRM needed to be disabled in BIOS settings. When I did this I could not even get to the Clover boot screen. So I have changed that setting back.
At this point I created
a fresh USB installer using Unibeast so I could easily edit the EFI partition on a separate computer when trying various options.
I then started through various forum threads on this black screen issue. Too many to list here, and all were on slightly different hardware. None worked. (I call this the "trying random stuff" phase and it seems a bit like buying lottery tickets.)
I did the most through review of
this thread since it had 29 pages of solutions.
I posted to the end of that thread and
FishCow suggested the following BIOS settings:
BIOS Features>Windows 8/10 Features: Windows 8/10
BIOS Features>CSM Support: Disabled
Peripherals>Initial Display Output: PCIe 1 Slot
Peripherals>XHCI Hand-off: Enabled
The first: would not boot, only boots if OS type is set to "Other OS" as it had been previously
CSM support disabled fails to get to Clover boot screen.
The third setting does not exist on my system.
The closest I could find to the fourth was EHCI Hand-off. I tried this both enabled and disabled.
No success. Also per that suggestion I installed Lilu and WhateverGreen kexts.
Still no success.
Finally, I reviewed the "
Read Before Posting" thread in the graphics forum.
Per that I verified that I had set InjectAti=False in my Clover Preferences.
Most recently I tried Stork's suggestion here (Add the FBName = Orinoco and Inject > ATI=true & Intel=True to config.plist which you can do with Clover Configurator) and still no success.
Latest EFI folder is attached here.
Any help is appreciated!
