linvers Posted August 23, 2019 Share Posted August 23, 2019 (edited) My computer's cpu is AMD FX 8350，and graphics card is ati hd7850. when i boot installation,the graphics card' DIV port no signal, and HDMI port dislay a gray screen. so how to fix it ? here is my EFI configurations. EFI.zip Edited August 23, 2019 by linvers Link to comment Share on other sites More sharing options...
Cyberdevs Posted August 24, 2019 Share Posted August 24, 2019 @linvers try this: EFI.zip Link to comment Share on other sites More sharing options...
linvers Posted August 25, 2019 Author Share Posted August 25, 2019 On 8/24/2019 at 9:46 PM, Cyberdevs said: @linvers try this: EFI.zip thanks , i've tried this EFI configuration. Then has new problem: Black Screen. Link to comment Share on other sites More sharing options...
Guest ricoc90 Posted August 26, 2019 Share Posted August 26, 2019 (edited) Back in the days I was running Mavericks and Yosemite on a FX 8120 in combination with a XFX Radeon HD 7850 and it wouldn't work without a patched framebuffer because the personalities in the 7000controller kext did not match with my card, thus I would always have a black screen. I need to admit that I don't know how that's done using WhateverGreen but all I did back then was changing the port layout (I can't really remember what I did exactly because it's 5 years ago, but I believe the framebuffer had a hdmi connector on port 1 whereas my card had a DVI connector on that port so I changed that) Edited August 26, 2019 by ricoc90 Link to comment Share on other sites More sharing options...
Cyberdevs Posted August 26, 2019 Share Posted August 26, 2019 4 hours ago, ricoc90 said: Back in the days I was running Mavericks and Yosemite on a FX 8120 in combination with a XFX Radeon HD 7850 and it wouldn't work without a patched framebuffer because the personalities in the 7000controller kext did not match with my card, thus I would always have a black screen. I need to admit that I don't know how that's done using WhateverGreen but all I did back then was changing the port layout (I can't really remember what I did exactly because it's 5 years ago, but I believe the framebuffer had a hdmi connector on port 1 whereas my card had a DVI connector on that port so I changed that) Yeah modification method can work too but it was used long before Lilu and WEG which there were no other alternative. this is how to modify AMD FrameBuffer (this is an old topic and might not work under Mojave) Link to comment Share on other sites More sharing options...
linvers Posted August 26, 2019 Author Share Posted August 26, 2019 @ricoc90 @Cyberdevs yeah, i've tried to patched the kexts,it's still not working. some topics noticed that mini dp ports is working. i'll try it. Link to comment Share on other sites More sharing options...
linvers Posted August 28, 2019 Author Share Posted August 28, 2019 @Cyberdevs I've resolved this problem. ATI HD7850 graphics card only mini DP ports can working fine. When I installed the macOS by vanilla USB Driver, I got a new problem with the clover boot loader. When I boot macOS from the EFI partition. the boot hangs at here. so how to fix it. same EFI configuration. Link to comment Share on other sites More sharing options...
Cyberdevs Posted August 29, 2019 Share Posted August 29, 2019 18 hours ago, linvers said: @Cyberdevs I've resolved this problem. ATI HD7850 graphics card only mini DP ports can working fine. When I installed the macOS by vanilla USB Driver, I got a new problem with the clover boot loader. When I boot macOS from the EFI partition. the boot hangs at here. so how to fix it. same EFI configuration. What did you change in the EFI folder? it was booting the last time you used it EFI I sent you correct? Link to comment Share on other sites More sharing options...
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