cipiter Posted November 26, 2025 Share Posted November 26, 2025 (edited) Hi everyone, as the title states i'm having graphics stuck at 7MB in sequoia i recently installed it after having a hard time with Tahoe now the issue is even tho i have an RX580 but macOS is not picking it but the monitor is still connected to the GPU with DP Cable, i created my EFI with OC Simplify and it worked perfectly but now i'm stuck with graphics issue, i have attached my EFI folder, thanks. PC Specification: CPU: Intel Core i7-4790 GPU: AMD Radeon RX580 (8GB Variant) Motherboard: Gigabyte H81M-S2V Memory: 16GB DDR3 Storage: 160GB Samsung HDD Ethernet: RTL8111 (Realtek GbE LAN chip (10/100/1000 Mbit) Audio: ALC887 (Realtek® ALC887 codec) I/0 Ports: 2 x USB 3.0/2.0 ports on the back panel OS: Sequoia 15.7.2 efi.zip Edited November 26, 2025 by cipiter Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/ Share on other sites More sharing options...
strangeron Posted November 26, 2025 Share Posted November 26, 2025 (edited) If an RX580 isn't working on a Mac, my first thought is that this card is an RX 580 2048SP. The only cards that are not supported are the RX 580 2048SP and RX 590 GME. Check first. If so, the problem can still be solved. Edited November 26, 2025 by strangeron 3 2 Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844235 Share on other sites More sharing options...
cipiter Posted November 26, 2025 Author Share Posted November 26, 2025 Just now, strangeron said: If an RX580 isn't working on a Mac, my first thought is that this card is an RX 580 2048SP. The only cards that are not supported are the RX 580 2048SP and RX 590 GME. Check first. Thanks i just checked as you can see in the ScreenShot: So is it possible that i keep my main GPU plugged in but use my iGPU for macOS?, If so can you please recommend a guide thats easy to follow and isn't confusing, thanks. 1 Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844236 Share on other sites More sharing options...
deeveedee Posted November 26, 2025 Share Posted November 26, 2025 @cipiter I just started looking at your new EFI. The EFI is missing DeviceProperties for your iGPU and may or may not need DeviceProperties for your dGPU. In your boot-args, you have '-vhtrcfg=0x4' which I'm not familiar with, but if it is a valid boot-arg, I would think it would be 'vhtrcfg=0x4' since boot-args that have an assignment with "=" typically don't have a "-" at the beginning. What does "vhtrcfg=0x4" do? 1 Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844237 Share on other sites More sharing options...
cipiter Posted November 26, 2025 Author Share Posted November 26, 2025 Just now, deeveedee said: @cipiter I just started looking at your new EFI. The EFI is missing DeviceProperties for your iGPU and may or may not need DeviceProperties for your dGPU. In your boot-args, you have '-vhtrcfg=0x4' which I'm not familiar with, but if it is a valid boot-arg, I would think it would be 'vhtrcfg=0x4' since boot-args that have an assignment with "=" typically don't have a "-" at the beginning. What does "vhtrcfg=0x4" do? I was trying to google but couldn't find anything so i tried asking AI (Grok to be exact) and it said to try that so i tried that but it didn't worked so i left it there not thinking much of it no other reasons. Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844238 Share on other sites More sharing options...
strangeron Posted November 26, 2025 Share Posted November 26, 2025 19 minutes ago, cipiter said: So is it possible that i keep my main GPU plugged in but use my iGPU for macOS? HD Graphics 4600 can be run on Sequoia, but OCLP is required. By the way, the RX580 2048SP can be flashed with a correct RX 570 vBios. And it works. 3 Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844240 Share on other sites More sharing options...
cipiter Posted November 26, 2025 Author Share Posted November 26, 2025 1 minute ago, strangeron said: HD Graphics 4600 can be run on Sequoia, but OCLP is required. By the way, the RX580 2048SP can be flashed with a correct RX 570 vBios. And it works. Don't wanna risk flashing my GPU as its the only one i have right now, and is it difficult using OCLP for my iGPU? Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844241 Share on other sites More sharing options...
strangeron Posted November 26, 2025 Share Posted November 26, 2025 t's not difficult. There are many resources available on the subject, especially IMforum. If you encounter any problems, help will be available. https://www.insanelymac.com/forum/topic/354499-installing-new-macos-on-unsupported-hardware-oclp-patcher-and-others/ 2 Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844248 Share on other sites More sharing options...
Cyberdevs Posted November 26, 2025 Share Posted November 26, 2025 @cipiter try this: efi.zip 2 Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844249 Share on other sites More sharing options...
cipiter Posted November 27, 2025 Author Share Posted November 27, 2025 18 hours ago, Cyberdevs said: @cipiter try this: efi.zip 8.67 MB · 4 downloads Just tried your EFI but still the 7MB issues persists... 18 hours ago, strangeron said: t's not difficult. There are many resources available on the subject, especially IMforum. If you encounter any problems, help will be available. https://www.insanelymac.com/forum/topic/354499-installing-new-macos-on-unsupported-hardware-oclp-patcher-and-others/ I know but really don't wanna risk it right now for now i can stick with my iGPU and will try the patching method after having a smoothly working mac. Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844264 Share on other sites More sharing options...
Leo Mauti Posted November 27, 2025 Share Posted November 27, 2025 Sorry, it may be trivial but have you tried this kext? https://github.com/ChefKissInc/NootedRed Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844265 Share on other sites More sharing options...
cipiter Posted November 27, 2025 Author Share Posted November 27, 2025 Just now, Leo Mauti said: Sorry, it may be trivial but have you tried this kext? https://github.com/ChefKissInc/NootedRed No i haven't and i think it might not be for me since i have an intel CPU, please correct me if I'm wrong or have misunderstood something. Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844266 Share on other sites More sharing options...
Leo Mauti Posted November 27, 2025 Share Posted November 27, 2025 (edited) It should be for the card If you want to use the integrated card then: Edited November 27, 2025 by Leo Mauti 1 Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844268 Share on other sites More sharing options...
cipiter Posted November 27, 2025 Author Share Posted November 27, 2025 2 minutes ago, Leo Mauti said: It should be for the card oh ok, but will it work for a fake RX580? since i just discovered that the GPU is Chinese fake sadly. Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844269 Share on other sites More sharing options...
Leo Mauti Posted November 27, 2025 Share Posted November 27, 2025 (edited) I recommend you follow the video and use the integrated card. Intel® HD Graphics 4600 Edited November 27, 2025 by Leo Mauti Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844270 Share on other sites More sharing options...
cipiter Posted November 27, 2025 Author Share Posted November 27, 2025 3 minutes ago, Leo Mauti said: I recommend you follow the video and use the integrated card. Ok I'm gonna follow the steps in the video and let you know how it goes and if i face any issues, Thanks. Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844271 Share on other sites More sharing options...
Anto65 Posted November 27, 2025 Share Posted November 27, 2025 (edited) 45 minutes ago, Leo Mauti said: I recommend you follow the video and use the integrated card. Intel® HD Graphics 4600 Sorry but " Haswell iGPUs are only supported up-to macOS 12 " desktop-haswell-and-broadwell , to make it work, you need OCLP as already specified by strangeron Edited November 27, 2025 by Anto65 2 Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844272 Share on other sites More sharing options...
Leo Mauti Posted November 27, 2025 Share Posted November 27, 2025 (edited) I tried with my Mac, but it always gives me my card, however in the Hackintool settings there is the 4600, so it doesn't hurt to try. Of course, in fact I don't understand why not use oclp. Edited November 27, 2025 by Leo Mauti Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844274 Share on other sites More sharing options...
cipiter Posted November 27, 2025 Author Share Posted November 27, 2025 Just now, Anto65 said: Sorry but " Haswell iGPUs are only supported up-to macOS 12 " desktop-haswell-and-broadwell , to make it work, you need OCLP as already specified by strangeron oh ok then i'll try that, thanks. Just now, Leo Mauti said: Ho provato con il mio Mac, ma mi restituisce sempre la mia scheda, tuttavia nelle impostazioni di Hackintool c'è il 4600, quindi tentare non nuoce. Of course, in fact I don't understand why not use oclp. Just tried the video method and was just stuck in the start with white lines and wasn't getting past that Screenshot attached below.. Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844275 Share on other sites More sharing options...
cipiter Posted November 27, 2025 Author Share Posted November 27, 2025 Just a quick question is it possible that i run my iGPU in headless mode and leave main GPU plugged in and don't have to use seperate disply cable for iGPU patch cuz the only other cable is VGA on my board for the iGPU Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844276 Share on other sites More sharing options...
Leo Mauti Posted November 27, 2025 Share Posted November 27, 2025 (edited) I think Anto65 is right, why not try OCLP. Sure try to attack the integrated GPU Edited November 27, 2025 by Leo Mauti Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844277 Share on other sites More sharing options...
carlo_67 Posted November 27, 2025 Share Posted November 27, 2025 On 11/26/2025 at 5:19 PM, cipiter said: Hi everyone, as the title states i'm having graphics stuck at 7MB in sequoia i recently installed it after having a hard time with Tahoe now the issue is even tho i have an RX580 but macOS is not picking it but the monitor is still connected to the GPU with DP Cable, i created my EFI with OC Simplify and it worked perfectly but now i'm stuck with graphics issue, i have attached my EFI folder, thanks. PC Specification: CPU: Intel Core i7-4790 GPU: AMD Radeon RX580 (8GB Variant) Motherboard: Gigabyte H81M-S2V Memory: 16GB DDR3 Storage: 160GB Samsung HDD Ethernet: RTL8111 (Realtek GbE LAN chip (10/100/1000 Mbit) Audio: ALC887 (Realtek® ALC887 codec) I/0 Ports: 2 x USB 3.0/2.0 ports on the back panel OS: Sequoia 15.7.2 efi.zip 5.95 MB · 9 downloads disable igpu in bios Graphics → Disabled - GPU Multi-Monitor → Disable - Primary Display → PEG / PCIe nothing else is needed, as long as it is a UEFI GPU 1 Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844278 Share on other sites More sharing options...
cipiter Posted November 28, 2025 Author Share Posted November 28, 2025 10 hours ago, carlo_67 said: disable igpu in bios Graphics → Disabled - GPU Multi-Monitor → Disable - Primary Display → PEG / PCIe nothing else is needed, as long as it is a UEFI GPU Thanks but I've discovered that my RX580 is a fake RX580 so i don't think changing these settings gonna help. Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844280 Share on other sites More sharing options...
cipiter Posted November 28, 2025 Author Share Posted November 28, 2025 11 hours ago, Leo Mauti said: I think Anto65 is right, why not try OCLP. Sure try to attack the integrated GPU Yea I'll try the OCLP, also what do you mean by attack the integrated GPU? Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844281 Share on other sites More sharing options...
Leo Mauti Posted November 28, 2025 Share Posted November 28, 2025 Maybe connect an HDMI cable to the monitor. Link to comment https://www.insanelymac.com/forum/topic/362022-display-7-mb-issue-on-rx580-in-sequoia-1572/#findComment-2844285 Share on other sites More sharing options...
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