lolwatpear 3 Posted January 2 Share Posted January 2 I'm having issues with this GPU. I had no issue switching a 5700 xt out for it with Catalina. I didn't even change any boot args, kexts, or anything. With Big Sur, I just get 'no signal' when trying to use the card. I tried messing with the boot args bit , system ID, etc., but nothing. Does anyone know why this would be happening? It boots with nv_disable=1 , but disables acceleration obviously. Link to post Share on other sites
chris1111 5,157 Posted January 2 Share Posted January 2 40 minutes ago, lolwatpear said: I'm having issues with this GPU. I had no issue switching a 5700 xt out for it with Catalina. I didn't even change any boot args, kexts, or anything. With Big Sur, I just get 'no signal' when trying to use the card. I tried messing with the boot args bit , system ID, etc., but nothing. Does anyone know why this would be happening? It boots with nv_disable=1 , but disables acceleration obviously. I have two machine with this card working OOB in Big Sur Link to post Share on other sites
lolwatpear 3 Posted January 2 Author Share Posted January 2 2 minutes ago, chris1111 said: I have two machine with this card working OOB in Big Sur I know, so it makes absolutely no sense why it isn't It worked fine under catalina for me. Link to post Share on other sites
chris1111 5,157 Posted January 2 Share Posted January 2 12 minutes ago, lolwatpear said: I know, so it makes absolutely no sense why it isn't It worked fine under catalina for me. It work OOB from Sierra 10.12 to Big Sur 11 Link to post Share on other sites
lolwatpear 3 Posted January 2 Author Share Posted January 2 (edited) 2 minutes ago, chris1111 said: It work OOB from Sierra 10.12 to Big Sur 11 I know lol. So what would be the reason why I'd be getting 'no signal' unless I nv_disable=1? Edited January 2 by lolwatpear Link to post Share on other sites
chris1111 5,157 Posted January 2 Share Posted January 2 1 minute ago, lolwatpear said: I know lol. So what would be the reason why I'd be getting 'no signal' unless I nv_disable=1? Check your bootloader setup or maybe simply reset NVRAM It work for me both DVI and HDMI no issue Link to post Share on other sites
lolwatpear 3 Posted January 2 Author Share Posted January 2 (edited) 9 hours ago, chris1111 said: Check your bootloader setup or maybe simply reset NVRAM It work for me both DVI and HDMI no issue nvram reset didn't work. Here's the opencore log. What can you make of this? opencore-2021-01-02-044117.txt Edited January 2 by lolwatpear Link to post Share on other sites
Hervé 2,137 Posted January 2 Share Posted January 2 If you still have Catalina, please post a zipped IOReg extract. What output port are you using? DVI and HDMI normally work OOB whilst VGA requires a specific NVCAP value (details posted on IM some time ago). Link to post Share on other sites
lolwatpear 3 Posted January 2 Author Share Posted January 2 (edited) 44 minutes ago, Hervé said: If you still have Catalina, please post a zipped IOReg extract. What output port are you using? DVI and HDMI normally work OOB whilst VGA requires a specific NVCAP value (details posted on IM some time ago). I'm just using HDMI. I no longer have Catalina installed and cannot atm. I strangely was able to have video out after switching my GPU from the first PCIe slot to the second in the OSX installer usb I have. Thinking switching it worked, I quit the installer, booted to my internal OSX, and then once again no video. I then booted to the installer and now that had no video yet again. I dont know what sequence of events made the video for the installer work for a brief moment. It makes no sense...I changed nothing. I tried switching the GPU around again, but it hasn't done that since. Edited January 2 by lolwatpear Link to post Share on other sites
Hervé 2,137 Posted January 2 Share Posted January 2 Post a zipped copy of the config you use or of the EFI folder. Link to post Share on other sites
lolwatpear 3 Posted January 2 Author Share Posted January 2 4 minutes ago, Hervé said: Post a zipped copy of the config you use or of the EFI folder. note I tried it without shikigva=144 and agdpmod=ignore also. They were just there when I was using my 5700 xt. EFI.zip Link to post Share on other sites
Hervé 2,137 Posted January 2 Share Posted January 2 I'd say your issue is related to SMBIOS. Other than iMacPro1,1, which is inadequate to me, there's no info specified. Try and inject all required info for an iMac model model fitted with a Kepler graphics card (eg: iMac13,2 / iMac14,3 or similar). Link to post Share on other sites
lolwatpear 3 Posted January 2 Author Share Posted January 2 10 minutes ago, Hervé said: I'd say your issue is related to SMBIOS. Other than iMacPro1,1, which is inadequate to me, there's no info specified. Try and inject all required info for an iMac model model fitted with a Kepler graphics card (eg: iMac13,2 / iMac14,3 or similar). Sorry I forgot to mention I tried multiple smbios. iMac 14,2 is no longer supported with big sur, so I'm wondering if that has anything to do with it. But I've seen several people have no issue with the gt 710 on big sur. I tried several of the newer iMac smbios, and they don't work. Link to post Share on other sites
Hervé 2,137 Posted January 2 Share Posted January 2 Usually, nVidia cards require the SMBIOS of a Mac fitted with an nVidia GPU. You can safely run Big Sur with the SMBIOS of an unsupported model with the -no_compat_check boot arg. It's 100% proven. Link to post Share on other sites
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