Only one display on Ati HD4850

[mattodefou]

Hi everybody

 

 

here's the device info:

 

 

ATI Radeon HD 4800:

 

Chipset Model: ATI Radeon HD 4800

Type: Display

Bus: PCIe

PCIe Lane Width: x16

VRAM (Total): 512 MB

Vendor: ATI (0x1002)

Device ID: 0x9442

Revision ID: 0x0000

ROM Revision: 113-B1480A-236

EFI Driver Version: 01.00.236

Displays:

SyncMaster:

Resolution: 2048 x 1152 @ 60 Hz

Depth: 32-Bit Color

Core Image: Hardware Accelerated

Main Display: Yes

Mirror: Off

Online: Yes

Quartz Extreme: Supported

Rotation: Supported

Display Connector:

Status: No Display Connected

 

 

I have 2 Samsung 23" LCD. they don't have DVI so I'm using adapters. Both of them work. As one. Detect displays ..... nothing. I wasn't able to get the full resolution so I forced this resolution via com.apple.boot.plist.

I installed Natit_with_4850_bios_inside. after everything else also failed to work right.

 

System Config is Asus P5Q-E, Intel Core2Quad 2.33, Ati HD4850, Leopard retail 10.5.7 + Chamelon 2.0

 

 

Is there any way to define 2 outputs and resolutions via boot.plist?

 

 

tnx