Thanks for this, makes it easy. Dual monitors doesn't work with my 4870, is this normal? If I have two things plugged in (say DVI & VGA), each will only work when only one is plugged in. My DVI is dual-link, maybe that's part of the problem. DVI & HDMI combo also doesn't work, only individually.
I'm on a Mac Pro 1,1, and I flashed my ATI 4870 card from instructions elsewhere on this forum, and used this patch after 10.6.7 update broke the display.
ATI Radeon HD 4870:
Chipset Model: ATI Radeon HD 4870
Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 512 MB
Vendor: ATI (0x1002)
Device ID: 0x9440
Revision ID: 0x0000
ROM Revision: 113-B7710C-176
EFI Driver Version: 01.00.318
Exactly which mfg/model # is your card? Were dual displays working before 10.6.7+patch?
-Steve
Thanks for this, makes it easy. Dual monitors doesn't work with my 4870, is this normal? If I have two things plugged in (say DVI & VGA), each will only work when only one is plugged in. My DVI is dual-link, maybe that's part of the problem. DVI & HDMI combo also doesn't work, only individually.
I'm on a Mac Pro 1,1, and I flashed my ATI 4870 card from instructions elsewhere on this forum, and used this patch after 10.6.7 update broke the display.
Is there any reason to apply this to a MacPro1,1 with the Apple supplied ATI Radeon HD 4870 running OSX 10.6.7 ?
Code:ATI Radeon HD 4870: Chipset Model: ATI Radeon HD 4870 Type: GPU Bus: PCIe Slot: Slot-1 PCIe Lane Width: x16 VRAM (Total): 512 MB Vendor: ATI (0x1002) Device ID: 0x9440 Revision ID: 0x0000 ROM Revision: 113-B7710C-176 EFI Driver Version: 01.00.318
Just curious if there might be a 10.6.8 or Lion patch coming? =)
Hi. For most (if not all) 4870's there is one dvi ports that is specifically for Dual-link DVI and the other ONLY supports single-link DVI. If you were looking at both DVI ports, the Dual DVI specific port would be the one on the right.
Also, I do not believe the 4870(flashed ones anyway) could ever really support VGA monitors. Even when it was VGA -> DVI converterted it would still fail on the Mac OS X side of things. It is necessary that both monitors communicate via a DVI port for Mac OS X.
Just curious if there might be a 10.6.8 or Lion patch coming? =)