MP 1,1-5,1 OCLP on 5,1 attempting to fresh install Monterey+

[Jclunis]

I was running 10.13 with a stock Radeon HD 5770. I installed a GTX 680 (not flashed) and web drivers. This enabled me to update firmware and install 10.14. The NVIDIA web driver notifies of no Mojave support and doesn't run, but I get video out of the GTX 680. Mostly good.

I created an OCLP & Monterey installer on USB. I installed Monterey to a new SSD. I then had no video from any output of the GTX 680 (2xDVI, HDMI, DP).

I reinstalled the Radeon and can now boot with to Monterey. Post-install root patches OK but no Kepler drivers for GTX 680. I installed the GTX 680 without power connectors so the card can be detected. Post-install patching then sees the GTX 680 and attempts to install the driver but fails. The patch logging cannot be copy/pasted from the window - can this be pulled from a log file anywhere? I transcribed some of the error text below. I saw no mention of Radeon, just “NVDA” and GeForce in the error text — along with other bits that did not appear to be display or accelerator related.

I also tried patching in Kepler drivers to my 11.14 boot drive but somehow ended up breaking the OS. The 11.14 drive now gives a ? instead of finding the OS on boot. So I am now booting to Monterey with the Radeon.

I am primarily seeking help with getting video from the GTX 680. If I can get this working then I'll go up to Ventura.

 

[tsialex]

You can't use two dissimilar GPUs after High Sierra. So, you need to use only one.

If you gonna use the GTX 680, you need to flash it or inject EnableGop to the BootROM (if you can't do it yourself, you can go for a BootROM reconstruction service instead, it will have EnableGop already injected), since you need pre-boot configuration support to install OCLP/Monterey. Without BootPicker you won't be able to install anything easily, so, first step is to address that.

Btw, when you install anything via OCLP, the root patches remove support/drivers/kexts for all other GPUs, but the GPU you installed.

 

[Jclunis]

Thanks for that. I collected the files for flashing already but was hoping I could get some minimum functionality without it. I have access to some other hardware, so I will try flashing.