Black Screen Catalina Install

[trs96]

I was using the one on the left, UVOOI Active.

I don't see any reason why an Active DP-HDMI cable wouldn't work with a 570. May have just been a defective cable.

 

[ArcticPanda]

I don't see any reason why an Active DP-HDMI cable wouldn't work with a 570. May have just been a defective cable.

Any chance you could help with my issue?

 

[UtterDisbelief]

Any chance you could help with my issue?

The reason the guys have suggested checking monitor cables is only because everything else we have suggested isn't working for you.

It is possible your RX580 is one with a specialised VBIOS, there are a few, but when the iGPU won't work either...

If you have repartitioned the destination drive and formatted as per the Catalina guide so there is nothing else to confuse or get in the way, with the hardware you have in your Profile, and the extra tips we have offered concerning the very common problem of black-screen at boot, then this is a mystery.

There must be something else we are not seeing... After all, you said you had this build running previously.

 

[ArcticPanda]

The reason the guys have suggested checking monitor cables is only because everything else we have suggested isn't working for you.

It is possible your RX580 is one with a specialised VBIOS, there are a few, but when the iGPU won't work either...

If you have repartitioned the destination drive and formatted as per the Catalina guide so there is nothing else to confuse or get in the way, with the hardware you have in your Profile, and the extra tips we have offered concerning the very common problem of black-screen at boot, then this is a mystery.

There must be something else we are not seeing...

Presumably if this was an issue it wouldn't have successfully worked within Mojave though?

I don't understand the verbose breakdown at all - Does this point to anything in particular?

 

[trs96]

Any chance you could help with my issue?

Have you tried removing the 580 and installing with the onboard graphics ?
If Mojave works, have you tried an in place upgrade from your MAS download of Catalina ?

 

[ArcticPanda]

Have you tried removing the 580 and installing with the onboard graphics ?
If Mojave works, have you tried an in place upgrade from your MAS download of Catalina ?

I no longer have Mojave installed it is worth noting - I wiped the drive out of desperation to find a resolution

 

[UtterDisbelief]

I no longer have Mojave installed it is worth noting - I wiped the drive out of desperation to find a resolution

Apologies if I am getting confused, but what about what you said in post #12 ?

 

[ArcticPanda]

Apologies if I am getting confused, but what about what you said in post #12 ?

Sorry for the confusion. Basically I think I have somehow accidentally put an installer or something onto my SSD with Clover (don't ask me how this happened - Which is what has been running and causing my initial issue).

Then I successfully booted from my USB (following the guide), but the USB boot just goes to an apple logo without any loading bar.

Am I making more sense?

and to answer questions, no I haven't tried to install without my GPU

 

[UtterDisbelief]

Sorry for the confusion. Basically I think I have somehow accidentally put an installer or something onto my SSD with Clover (don't ask me how this happened - Which is what has been running and causing my initial issue).

Then I successfully booted from my USB (following the guide), but the USB boot just goes to an apple logo without any loading bar.

Am I making more sense?

and to answer questions, no I haven't tried to install without my GPU

Okay, well if you have no running system and are not trying to repair one already installed, then it might be best to start again by completely re-partitioning the SSD as GUID and following the Catalina guide, checking your BIOS settings etc.

If you have a UniBeast 10 installer drive for Catalina it should just work, because it includes Lilu and Whatevergreen kexts to work around the black-screen problem. (Just out of interest, this is a common problem caused by a double-initialisation of a PCs display which makes macOS choose the wrong output. It was originally cured by a Clover setting called RadeonDeInit, but now the kext method is generally preferred).

As you say you had a working Mojave/Catalina system previously then obviously something has changed. Catalina 10.15.4 does seem to be proving a little tricky for some people at times, so maybe consider going the Mojave (or earlier Catalina) route again until you have a working system you can backup - and then start experimenting?

It's normal for some USB ports to seem "dead" until the OS kicks in and activates them.

 

[ArcticPanda]

Okay, well if you have no running system and are not trying to repair one already installed, then it might be best to start again by completely re-partitioning the SSD as GUID and following the Catalina guide, checking your BIOS settings etc.

If you have a UniBeast 10 installer drive for Catalina it should just work, because it includes Lilu and Whatevergreen kexts to work around the black-screen problem. (Just out of interest, this is a common problem caused by a double-initialisation of a PCs display which makes macOS choose the wrong output. It was originally cured by a Clover setting called RadeonDeInit, but now the kext method is generally preferred).

As you say you had a working Mojave/Catalina system previously then obviously something has changed. Catalina 10.15.4 does seem to be proving a little tricky for some people at times, so maybe consider going the Mojave (or earlier Catalina) route again until you have a working system you can backup - and then start experimenting?

It's normal for some USB ports to seem "dead" until the OS kicks in and activates them.

Stupid question - But how would I repartition the SSD on the hackintosh build without any access to the OS?

How would I access an earlier version of Catalina?