Hi folks,
Got a G4 AGP Graphics in which I recently upgraded the GPU. I put in an ATI Radeon 9000 64MB with DVI and ADC port. The ADC port doesn't work as the sawtooth doesn't provide the card with the right power, so I also got an Apple DVI to ADC adapter.
The display gets power (through the adapter) but no signal. Here's what I've tried so far and the results:
1. ATI Rage 128 Pro > DVI/ADC Adapter > Display
It works, I can see the boot screen but then the display goes black.
The Rage Pro doesn't have enough VRAM so figured it wouldn't work but just for test sake...
2. ATI radeon 9000 > DVI/ADC Adapter > Display
No signal, not even during boot.
3. ATI Radeon 5770 (Mac Pro) > DVI/ADC Adapter > Display
No signal, not even during boot.
4. ATI Radeon 5770 (Mac Pro) > Mini DisplayPort to DVI Adapter > DVI/ADC Adapter > Display
Display works beautifully.
Both OS 9 and OS X 10.4 on the G4 have all the latest ATI drivers. I can't figure this one out. Is it a single-link DVI VS dual-link DVI thing? is it a DVI-I (9000) VS DVI-D (Adapter) thing?
Halp
Would really like to use this display. Currently typing this on the G4 with a 1080p DVI display attached and it works fine.