Question / Help OBS not seeing better of 2 video cards

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Wolfgang Von Buttnugget

New Member
Newbie here.
I installed OBS today and discovered that OBS is not seeing one of my video cards.
I'm using an old MacBook Pro (15-inch, Late 2008) which has the following video cards:
NVIDIA GeForce 9400M (256 MB shared VRAM)
NVIDIA GeForce 9600M GT (512 MB dedicated VRAM)

OBS does not see the 9600M GT, which is the better video card in this laptop. When I set the Energy Saver, Graphics setting to "Better battery life," which uses the 9400M, then OBS captures my display. But that affects my performance and the captured video is also affected negatively.

Is there a way I can configure OBS and/or the MacBook Pro so that OBS uses the 9600 M GT?

Thanks

System info:
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.8 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.33f8

Chipset Model: NVIDIA GeForce 9400M
Type: GPU
Bus: PCI
VRAM (Total): 256 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0863
Revision ID: 0x00b1
ROM Revision: 3437
gMux Version: 1.7.3

Chipset Model: NVIDIA GeForce 9600M GT
Type: GPU
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 512 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0647
Revision ID: 0x00a1
ROM Revision: 3437
gMux Version: 1.7.3
 
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