Change screen resolution on a non-DDC laptop

[fakezeta]

Hi,

 

I have a HP nw8240 with a working (more or less ) Ati Mobility Radeon X700/FireGL V500SV.

 

This is the System Profiler output:

 

Chipset Model: Mobility Radeon X700/FireGL V5000 (M26) (PCIE)

Type: Display

Bus: PCIe

VRAM (Total): 128 MB

Vendor: ATI (0x1002)

Device ID: 0x5653

Revision ID: 0x0000

Displays:

Display:

Resolution: 1280 x 1024 @ 60 Hz

Depth: 32-bit Color

Core Image: Supported

Main Display: Yes

Mirror: Off

Online: Yes

Quartz Extreme: Supported

 

I can change resolution using an external monitor, but with the internal lcd I cannot change: not even with option at the boot menu.

 

This is the output of the Callisto drivers from system.log

Jan 8 11:13:24 localhost kernel[0]: CallistoHAL Initialized!

Jan 8 11:13:24 localhost kernel[0]: Callisto: omni's ATI Driver&FrameBuffer, build 006, 20-May-2006

Jan 8 11:13:24 localhost kernel[0]: Callisto: Model Mobility Radeon X700/FireGL V500SV (r420)

Jan 8 11:13:24 localhost kernel[0]: Callisto: MMIO range@0x18 (c8800000) mapped to kernel virtual address 0x29844000

Jan 8 11:13:24 localhost kernel[0]: Callisto: 128 MB DDR found on 128 bit wide bus

Jan 8 11:13:24 localhost kernel[0]: Callisto: VRAM range@0x10 (c0000000:08000000)

Jan 8 11:13:24 localhost kernel[0]: Callisto: Found ROM @0xc0000

Jan 8 11:13:24 localhost kernel[0]: Callisto: ATOM ATI BIOS detected

Jan 8 11:13:24 localhost kernel[0]: Callisto: PLL values from ATOM BIOS: ref_clk=2700, ref_div=0, xclk=40000, min_freq=20000, max_freq=50000

Jan 8 11:13:24 localhost kernel[0]: Callisto: Port[0]: DDC: N/C, DAC: Primary, TMDS: Internal, Connector: Proprietary

Jan 8 11:13:24 localhost kernel[0]: Callisto: Port[1]: DDC: DDC_MonID, DAC: Unknown, TMDS: Internal, Connector: Unsupported

Jan 8 11:13:24 localhost kernel[0]: Callisto: No connector info table detected

Jan 8 11:13:24 localhost kernel[0]: Callisto: Connection on port 1 not detected, but there is connection on port 2 (swapping 2->1)

Jan 8 11:13:24 localhost kernel[0]: Callisto: Found Monitor: CRT

Jan 8 11:13:24 localhost kernel[0]: Callisto: done with Mobility Radeon X700/FireGL V500SV

 

I think that the problem is related to the internal display not being DDC compliant.

 

My other big issue is that I cannot boot while not battery powered...

 

 

 

Can anybody help me?

 

Tnx in advance