MP 1,1-5,1 Problem getting a Sapphire RX560 card running on Mac Pro 5,1

[Cuciu]

Hi,
i bought this card to install on my mac pro Mojave OS. Everything worked fine under high sierra, but after the upgrade i only see back screen, the mac booted but i can't do anything because i see only black screen.
Any ideas to solve?
tks

 

[tsialex]

Hi,
i bought this card to install on my mac pro Mojave OS. Everything worked fine under high sierra, but after the upgrade i only see back screen, the mac booted but i can't do anything because i see only black screen.
Any ideas to solve?
tks

AirDisplay? Read the notes:

MP5,1: What you have to do to upgrade to Mojave (BootROM upgrade instructions thread)

Please fully read this first post, you will probably find that you have one or more problems described into the various notes below. Mojave will only install if you have upgraded your BootROM to the current release and your Mac Pro have a Metal capable GPU*. If you are trying to install Mojave...

forums.macrumors.com

 

[ashleykaryl]

I have this card running on Mojave, but I've had the black screen a couple times following security updates. Resetting the NVRAM has always fixed it.

Reset NVRAM on your Mac – Apple Support (UK)

If one or more settings stored in NVRAM aren't working as expected on an Intel-based Mac, resetting NVRAM may help.

support.apple.com

 

[Cuciu]

AirDisplay? Read the notes:

MP5,1: What you have to do to upgrade to Mojave (BootROM upgrade instructions thread)

Please fully read this first post, you will probably find that you have one or more problems described into the various notes below. Mojave will only install if you have upgraded your BootROM to the current release and your Mac Pro have a Metal capable GPU*. If you are trying to install Mojave...

forums.macrumors.com

apple cinema display 24”

 

[tsialex]

apple cinema display 24”

AirDisplay is an app that is Mojave with AMD Polaris GPUs incompatible and makes the display go black, read the notes.

 

[Cuciu]

AirDisplay is an app that is Mojave with AMD Polaris GPUs incompatible and makes the display go black, read the notes.

i have duet app. Is it something similar? In the past i had installed air display (unistalled after i bought duet app)

 

[tsialex]

i have duet app. Is it something similar? In the past i had installed air display (unistalled after i bought duet app)

Read the AirDisplay note, remove the kext. The AirDisplay kernel extension is incompatible with AMD Polaris GPUs.

 

[Ludacrisvp]

The kext is probably still floating around. Duet likely uses the same type of kext.

 

[Cuciu]

Solved! really thank you to everyone helped me

 

[Cheekyrobot]

Solved! really thank you to everyone helped me

how did you sort this out? I have the same problem on ventura