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Intel GMA x3100 kext?


My laptop has the GMA x3100 in it, and the graphics were fully working on Snow Leopard, but now on Lion 10.7.2, i don't have full graphics support. The resolution is wrong and its not very appealing. The display is supposed to be 1280x800, but the only resolution it has is 1024x768. Anyone have a kext to fix this? Thanks!

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First Run this and set Resolution. (don not tick unnecessary options)

Link : Chameleon-2.1svn-r1683.pkg

Restart and see if the resolution gets fixed.

if not keep a backup of originals and paste these two Kexts to \System\Library\Extentions

Link : AppleIntelGMAX3100.zip

repair disc permissions

open terminal an paste this lines:

sudo -s (type :su password after this)

perl -pi -e "s|\x86\x80\x02\x2A|\x86\x80\x12\x2A|g" /System/Library/Extensions/AppleIntelGMAX3100FB.kext/AppleIntelGMAX3100FB

perl -pi -e "s|\x86\x80\x02\x2A|\x86\x80\x12\x2A|g" /System/Library/Extensions/AppleIntelGMAX3100.kext/Contents/MacOS/AppleIntelGMAX3100

perl -pi -e "s|028086|128086|g" /System/Library/Extensions/AppleIntelGMAX3100FB.kext/Info.plist

perl -pi -e "s|028086|128086|g" /System/Library/Extensions/AppleIntelGMAX3100.kext/Contents/Info.plist

touch /System/Library/Extensions

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hi.i have a acer extensa 5220, lion 10.7.2, this tutorial not work in my extensa , i have only 1024x768. help me please.

---------Modelo de chipset: GMAX3100

Tipo: GPU

Bus: Integrado

VRAM (total): 64 MB de memoria de sistema compartida

Fabricante: Intel (0x8086)

ID del dispositivo: 0x2a02

ID de la revisión: 0x0003

Información de la extensión del kernel: Ninguna extensión de kernel (kext) cargada



Resolución: 1024 x 768

Profundidad de píxel: Color de 32 bits (ARGB8888)

Pantalla principal: Sí

Duplicado: Desactivado

En línea: Sí


in 10.6.3 the graphic work perfect. but is very unstable the OS

Edited by flacosa

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You should try this :

Download X3100 64bit driver (for snow and lion) from here

install it as described (the Recommended smbios.plist change is not necessary)

then download this very good utility Chameleon Wizard (google it)

Open it and in the menu "org.chameleon.Boot" disable Graphics Enabler


and Voila!

Launchpad runs smoothly but no transparency in menubar => No QE/CI activated


Mine is:


Jeu de composants: GMA X3100

Type: Processeur graphique (GPU)

Bus: Intégré

VRAM (totale): 144 Mo

Fournisseur: Intel (0x8086)

Identifiant du périphérique: 0x2a02

Identifiant de révision: 0x000c



Résolution: 1280 x 800

Profondeur de pixels: Couleurs 32 bits (ARGB8888)

Moniteur principal: Oui

Miroir: Désactivé

Connecté: Oui

Intégré: Oui

Edited by lekany

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