Good morning, could anybody help me making my GPU get working, please? I tried several things but I always get a black screen and the only way to avoid it is booting in safe mode (with no graphic acceleration). I installed High Sierra with a Unibeast made usb pen drive, the system reboots twice during the installation process, but when I have to boot in the system for post installation with multibeast I get the black screen issue. What I tried insofar getting always the same issue: 1 DeInit (doesn't work) 2 Inject Ati (doesn't work) 3 Both above arguments (doesn't work) 4 Boot in safe mode doesn't let me install Clover 5 Plugging the ssd on a real mac as an external usb disk and running multibeast on it in order to make it bootable (doesn't work) 6 Injecting Lilu and Whatevergreen kexts through the preceding procedure (doesn't work). 7 Replacing my GPU with the old Nvidia Geforce 8600GT, completing the installation procedure, configuring clover for the new GPU card (vendor: 0x1002, model: 0x67EF) with Clover configurator and retrying the new card (doesn't work).
My system is setup as 14,2 iMac, is may be this the problem? Please help me.
I cannot find a solution! Thank you in advance. Good morning, could anybody help me making my GPU get working, please? I tried several things but I always get a black screen and the only way to avoid it is booting in safe mode (with no graphic acceleration). I installed High Sierra with a Unibeast made usb pen drive, the system reboots twice during the installation process, but when I have to boot in the system for post installation with multibeast I get the black screen issue. What I tried insofar getting always the same issue: 1 DeInit (doesn't work) 2 Inject Ati (doesn't work) 3 Both above arguments (doesn't work) 4 Boot in safe mode doesn't let me install Clover 5 Plugging the ssd on a real mac as an external usb disk and running multibeast on it in order to make it bootable (doesn't work) 6 Injecting Lilu and Whatevergreen kexts through the preceding procedure (doesn't work).
7 Replacing my GPU with the old Nvidia Geforce 8600GT, completing the installation procedure, configuring clover for the new GPU card (vendor: 0x1002, model: 0x67EF) with Clover configurator and retrying the new card (doesn't work). My system is setup as 14,2 iMac, is may be this the problem? Please help me. I cannot find a solution! Thank you in advance. Dear UtterDisbelief, thank you for your suggestion.
I tried your first suggestion, then I repaired permissions with utility kext, but unfortunately it gives the same black screen as before unless in safe mode. Carbonite backup video mac. selecting files for backup. As to your second advice, I have already tried it connecting my ssd as an external drive to my macbook pro and edited the config.plist without solving the problem.
Do you think it may depend on my mobo and cpu? May be they are too old? Or even on my system definition that does not match such an old hardware. Dear UtterDisbelief, thank you for your suggestion. I tried your first suggestion, then I repaired permissions with utility kext, but unfortunately it gives the same black screen as before unless in safe mode. As to your second advice, I have already tried it connecting my ssd as an external drive to my macbook pro and edited the config.plist without solving the problem. Do you think it may depend on my mobo and cpu?
May be they are too old? Or even on my system definition that does not match such an old hardware. Click to expand.Hi there, Yes, the older hardware is possibly causing a problem. The nearest real Apple system to yours is a 2009 iMac (E8600 etc). However I think it used either Nvidia 9400M or ATI Radeon HD4670 for graphics. You could experiment with different system-definitions.
The iMac14,2 is usually a great choice. The 2009 iMac was iMac10,1 I believe. I have no idea if this would help, but it might be worth trying? (Remember to turn-off wi-fi while experimenting to avoid the new serial numbers getting sent to Apple. It might cause ID problems.
If you get a system working you can 're-use' your original serial number etc.) Good luck.