Acer 5742G Nvidia GT420m ONLY 512vram should be 1024vram!

[myndfuk]

Olá,

Sorry I only speak english.

I have only 512vram detected for this card, it should be 1024 mb vram. I used the DSDT auto patcher and the Acer 5742G dsdt.aml when I installed. I am running 10.6.6 and 10.6.0 legacy kernel and used the Modded-NVIDIA_Retail_Mac_Driver_256.01.00f03 by tonycrap.

GeForce GT 420M:

Chipset Model: GeForce GT 420M

Type: GPU

Bus: PCIe

Slot: Slot-1

PCIe Lane Width: x16

VRAM (Total): 512 MB

Vendor: NVIDIA (0x10de)

Device ID: 0x0df1

Revision ID: 0x00a1

ROM Revision: 70.08.19.00.67

Displays:

Display:

Resolution: 1366 x 768

Pixel Depth: 32-Bit Color (ARGB8888)

Main Display: Yes

Mirror: Off

Online: Yes

Built-In: Yes

Display Connector:

Status: No Display Connected

I have no other problems or issues with this install and have been using this laptop daily as my main work computer but it would be nice to get the full memory on the nvidia card finally fixed.

Not sure how to fix this to get 1024 mb vram. Update Chameleon? replace DSDT? install new modded drivers?, mulitibest???

Can anyone help?

Muito obrigado

[Cassio]

How did you enable the video drivers? GraphicsEnabler, EFI string, DSDT, NVEnabler?

http://Olarila.com/forum/viewtopic.php?f=18&t=154

[myndfuk]

How did you enable the video drivers? GraphicsEnabler, EFI string, DSDT, NVEnabler?

http://Olarila.com/forum/viewtopic.php?f=18&t=154

 

Hi,

DSDT on install (no other method seemed to work), then just installed the modded drivers to get full graphics.

Is there anyway to tell other than through system profiler of the true vram usage?

[Cassio]

Check the properties injected in the video device in DSDT, you probably have

"VRAM,totalsize",
Buffer ()
{
   0x00, 0x00, 0x00, 0x20
},

change it to

"VRAM,totalsize",
Buffer ()
{
   0x00, 0x00, 0x00, 0x[b]4[/b]0
},

[myndfuk]

Check the properties injected in the video device in DSDT, you probably have

"VRAM,totalsize",
Buffer ()
{
   0x00, 0x00, 0x00, 0x20
},

change it to

"VRAM,totalsize",
Buffer ()
{
   0x00, 0x00, 0x00, 0x[b]4[/b]0
},

 

Thank you Cassio for your help but I am very confused now. I can't find entries in my DSDT as you said. I have found entries under "display" for memsize but not totalsize. and it shows 0x40. I am think maybe I didn't install graphics via DSDT but if not I don't know how I did it!

I attach Grab of my dsdt under "display" if you can see and my dsdt. Any clue what I did wrong?

dsdt.aml.zip

[Cassio]

There is no nVidia enable code in your DSDT, you must be using another method.

[myndfuk]

There is no nVidia enable code in your DSDT, you must be using another method.

 

Thanks anyway for your help. Must have used graphics enabler on install, not sure how to fix but since its not really broken, I'll move on and keep saving for a real mac