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Quadro FX 2800M acceleration work natively in Lion but not ML...

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My Quadro FX 2800M work natively in Lion, acceleration is enabled.

But in Mountain lion there is no acceleration :(




HP Quadro FX 2800M :


Nom: NVDA,Display-B

Type: Contrôleur du moniteur

Gestionnaire installé: Oui

MSI: Oui

Bus: PCI

Logement: Slot-1

Identifiant du fournisseur: 0x10de

Identifiant du périphérique: 0x061d

Identifiant du fournisseur du sous-système: 0x103c

Identifiant du sous-système: 0x0010

Révision de la ROM: 62.92.C0.00.03

Identifiant de révision: 0x00a2

Largeur du câble: x16

Vitesse de la liaison: 2.5 GT/s



The sames next are loaded:


kextstat | grep -i nv
39 0 0xffffff7f82258000 0x7000 0x7000 com.apple.driver.AppleEFINVRAM (1.6.1) <31 7 6 5 4 3>
91 2 0xffffff7f80a10000 0x2fc000 0x2fc000 com.apple.NVDAResman (7.3.2) <71 66 9 5 4 3 1>
94 0 0xffffff7f80d0c000 0x323000 0x323000 com.apple.nvidia.nv50hal (7.3.2) <91 9 4 3>

43 0 0xffffff7f80b0c000 0x7000 0x7000 com.apple.driver.AppleEFINVRAM (1.7) <38 7 6 5 4 3>
83 1 0xffffff7f80cee000 0x30d000 0x30d000 com.apple.NVDAResman (8.1.0) <74 65 10 5 4 3 1>
84 0 0xffffff7f80ffb000 0x322000 0x322000 com.apple.nvidia.nv50hal (8.1.0) <83 10


What can I do ?



My laptop is HP eliteBook 8740w with same dsdt for Lion and ML.

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