I have an ATI 5870 that was flashed so I got a boot screen. I've had it for probably three years running on my Mac Pro 3,1. A week or two ago I bought a 30" ACD to replace one of the two 23" ACDs I've been running on it, both displays being run off the DVI ports on the card. I have a third monitor (22" Asus) that I run off the Display port on the card to get the boot screen.
I no longer get a boot screen on the third monitor that runs off the Display port. I bought it from a guy on eBay who was selling a lot of these at the time, and he did a really good job with support and extras that came with the card.
Based on what I see, I suspect the higher resolution of the 30" ACD is the culprit. Here's why:
The Asus monitor that used to show the boot screen now gives an "out of range" message on the screen when connected to the card via the Display port. Since the only thing that has changed is the use of the 30" ACD, which has a much higher resolution than the 23" ACDs I had been using, I have to believe that the higher resolution, which the Asus monitor is not capable of displaying, is the reason why I don't see a boot screen on it any longer. I would add that if I left the Asus monitor on after booting into the system, it would act as a mirror of the primary monitor.
I'm curious as to opinions on this line of thought. It's the only thing that makes sense to me. I'm assuming that if I obtained another monitor that could display the same resolution of the 30" ACD I would once again have a boot screen on it.
MacDann
I no longer get a boot screen on the third monitor that runs off the Display port. I bought it from a guy on eBay who was selling a lot of these at the time, and he did a really good job with support and extras that came with the card.
Based on what I see, I suspect the higher resolution of the 30" ACD is the culprit. Here's why:
The Asus monitor that used to show the boot screen now gives an "out of range" message on the screen when connected to the card via the Display port. Since the only thing that has changed is the use of the 30" ACD, which has a much higher resolution than the 23" ACDs I had been using, I have to believe that the higher resolution, which the Asus monitor is not capable of displaying, is the reason why I don't see a boot screen on it any longer. I would add that if I left the Asus monitor on after booting into the system, it would act as a mirror of the primary monitor.
I'm curious as to opinions on this line of thought. It's the only thing that makes sense to me. I'm assuming that if I obtained another monitor that could display the same resolution of the 30" ACD I would once again have a boot screen on it.
MacDann