Hi, sorry if this has been asked elsewhere. I've been tearing my hair out with this for about 2 weeks.
I've installed Yosemite on my Mac Pro 1.1 (2.1) and updated to the most recent version. Everything works fine, except my GTX 470 will not display for some reason. I also have 10.7.5 installed and it works perfectly on that, no need to do anything. On Yosemite only my GT7300 will work. It detects the GTX470 and lists it in displays, but even when I do "detect displays" and it's plugged in I get no signal.
Really frustrating, I've spent ages on this project now and seem stumped at the last hurdle. If anyone has any ideas I would greatly appreciate it. Thanks in advance.
I've installed Yosemite on my Mac Pro 1.1 (2.1) and updated to the most recent version. Everything works fine, except my GTX 470 will not display for some reason. I also have 10.7.5 installed and it works perfectly on that, no need to do anything. On Yosemite only my GT7300 will work. It detects the GTX470 and lists it in displays, but even when I do "detect displays" and it's plugged in I get no signal.
Really frustrating, I've spent ages on this project now and seem stumped at the last hurdle. If anyone has any ideas I would greatly appreciate it. Thanks in advance.