Jeff, Thanks for your input. This sounds exactly like what I am currently experiencing, so I am grateful for any help that you have to offer.
I bought the PC version PowerColor Multi-Display Edition Radeon 7000 Evil Wizard :) I flashed it according to the instructions that were posted to this site:
http://aex.org/mac/7000.html
Like I pointed out earlier, sometimes I needed to invoke command+option+p+r to get the monitor to be detected. Probably just a coincidence. I have a ViewSonic E90f 19 inch monitor attached to the S900. It powers up the monitor 50% of the time in OS9, but has never detected the monitor in OS X. What exactly should I do to try to work around this? Do you think a DVI->VGA adapter might do the trick?
Keep in mind that the cause of your problem may be different from the cause of the problem which I am chasing. However, assuming that we're looking at the same problem, there are two solutions which I have found so far.
First, you can flash the card using the Mac firmware updater from ATI. Version 2.08 or the firmware updater contains an option to flash the card to firmware 1.19. Firmware 1.19 solves the problem I'm familiar with.
Second, connect a VGA - Mac adapter to your R7000. Then connect a Mac - VGA adapter to your VGA -Mac adapter. Then connect your monitor to the Mac - VGA adapter. I used a Uni-Macfly adjustable universal Mac to VGA adapter. I don't know if this works with every adapter.
If the cable on your monitor comes off at the monitor end, you might try a different cable, though it seems like that wouldn't make a difference. They should all be pretty similar, I think. However, I found an old NEC cable that made a difference on my Intellicolor monitor.
I found that a DVI to VGA adapter had no effect. In fact, to use the Intellicolor on the DVI port, I had to connect DVI - VGA, VGA - Mac and Mac - VGA. Quite a row of adapters. If you want a DVI -VGA adapter, Newegg has them for $8 with affordable shipping.
I am not running OSX and have no experience along those lines. Under OS9.1 these issues are consistent. If the monitor isn't recognized it just isn't recognized, so this causes me to suspect you may have a different problem.
I think Will has pointed out that some R7000 cards have slower RAM or a slower GPU than the stock settings in the firmware for the Mac. So you should check those issues. It is also possible that software configuration could be at the root of your problem.
Jeff Walther
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