Hi guys,
I'm very new here but running a 2009 Mac Pro, flashed to
5,1, and like many of you I've got a GTX 660. I have the rendering artifacts like everyone else here. They only show up intermittently -- my system looks fine for hours at a time, and then it will bug out. Changing display resolution seems to "reset" the artifacts for a little while, which is a nice workaround.
Couple of questions, and please forgive my n00bness here ...
- For those who are rolling back to 10.12.x, what is the right way to do that?
I'm concerned that the firmware update that I ran prior to the High Sierra upgrade will have made it impossible for me to roll back to a prior OS. Is that a possible risk or no?
I have an SSD boot drive and an HDD storage drive. Should I use the HDD as a temporary startup drive (installing 10.12 on it) and then boot up from that to install 10.12 again to my main SSD?
- For those who have noted enabling Intel HD in EFI as being key to solving the problem ... help?
Since I have a real Mac I've been able to avoid digging into the system-level tweaks that are common on this forum, e.g. EFI modification, etc. On this front, could someone point out where I can get started? Or if you want to walk me through it fully, hell, be my guest!
Thanks for any help or feedback.