Dell 3007WFP-HC and refresh rate

[zoob]

Hi Guys,

 

Having an issue with my Dell 3007WFP-HC and my Hackintosh:

10.6.4 + DSDT injection for card detection of GTX285 + GTS250

GTX285 drives a Dell 3007WFP-HC

GTS250 drives two Dell 2007FP's rotated 90 degrees.

 

My Dell 3007WFP-HC detects as 2560x1600, however all apps seem to think it's 0 Hz, and even in Display options it does not list a way to modify the refresh rate, whereas it's available for my other monitors Dell 2007FP's.

 

2007FP's that show the refresh rate:

EVGA GTS 250:

 Chipset Model:	EVGA GTS 250
 Type:	GPU
 Bus:	PCIe
 Slot:	PCI
 PCIe Lane Width:	x16
 VRAM (Total):	512 MB
 Vendor:	NVIDIA (0x10de)
 Device ID:	0x0615
 Revision ID:	0x00a2
 ROM Revision:	nVidia GeForce GTS250 OpenGL Engine
 Displays:
DELL 2007FP:
 Resolution:	1200 x 1600 @ 60 Hz
 Pixel Depth:	32-Bit Color (ARGB8888)
 Mirror:	Off
 Online:	Yes
 Rotation:	90
DELL 2007FP:
 Resolution:	1200 x 1600 @ 60 Hz
 Pixel Depth:	32-Bit Color (ARGB8888)
 Mirror:	Off
 Online:	Yes
 Rotation:	90

 

3007WFP-HC that does not show refresh rate:

EVGA GTX 285:

 Chipset Model:	EVGA GTX 285
 Type:	GPU
 Bus:	PCIe
 Slot:	PCI
 PCIe Lane Width:	x16
 VRAM (Total):	1024 MB
 Vendor:	NVIDIA (0x10de)
 Device ID:	0x05e3
 Revision ID:	0x00a1
 ROM Revision:	nVidia GeForce GTX285 OpenGL Engine
 Displays:
SwitchResX4 - DELL3007WFPHC:
 Resolution:	2560 x 1600
 Pixel Depth:	32-Bit Color (ARGB8888)
 Main Display:	Yes
 Mirror:	Off
 Online:	Yes
 Rotation:	Supported
Display Connector:
 Status:	No Display Connected

 

When I run OpenGL Extensions Viewer, and run a test, it shows:

2560 x 1600, 24 bits, 0 Hz, FSAA x 0

 

The OpenGL tab shows:

Desktop: 2560 x 1600 x 32 bpp, 1200 x 1600 x 32 bpp (60.0 Hz), 1200 x 1600 x 32 bpp (60.0 Hz)

 

I am perplexed. At first I thought it was my KVM (ATEN CS1782), but then I bypassed the KVM and no luck. I swapped my displays around to different cards, thinking maybe it was a GPU driver issue, however even on my GTS250 the 3007 gives no refresh rate, while the GTX285 with 2007FP does.

 

Anyone have any ideas, or am I SOL and should just ditch the Dell and get an ACD 30"?

 

Any help and/or insight would be much appreciated.

[zoob]

Looks like a non-issue. I went to the local Apple store to do a bit of research on their MacPro 4,1 and 30" ACD.

It behaved exactly the same. 2560x1600, 0 Hz in OpenGL Extension Viewer, no refresh rate adjustment.