Eu tenho uma máquina de inicialização tripla com o Windows 7, o Mint 13 (com o XFCE) e o Ubuntu 12. Somente no Windows 7 aparece a segunda tela conectada a uma segunda placa gráfica. No Mint e no Ubuntu, a segunda tela está em branco e, sob as propriedades de exibição, eu só vi na tela (a segunda tela entra no modo de economia de energia porque não está recebendo sinal).
Ambos aparecem em lshw (assim como a GPU on-board na minha placa-mãe, mas eu não quero usar isso).
Eu preciso 'ajustar' algo especificamente no Mint ou no Ubuntu para habilitar uma segunda GPU?
*-pci:0
description: PCI bridge
product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port
vendor: Intel Corporation
physical id: 1
bus info: pci@0000:00:01.0
version: 09
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:40 ioport:e000(size=4096) memory:f6000000-f70fffff ioport:e0000000(size=301989888)
*-display
description: VGA compatible controller
product: GT218 [GeForce 210]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a2
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=nouveau latency=0
resources: irq:16 memory:f6000000-f6ffffff memory:e0000000-efffffff memory:f0000000-f1ffffff ioport:e000(size=128) memory:f7000000-f707ffff
*-multimedia
description: Audio device
product: High Definition Audio Controller
vendor: NVIDIA Corporation
physical id: 0.1
bus info: pci@0000:01:00.1
version: a1
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:17 memory:f7080000-f7083fff
*-pci:1
description: PCI bridge
product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port
vendor: Intel Corporation
physical id: 1.1
bus info: pci@0000:00:01.1
version: 09
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:41 ioport:d000(size=4096) memory:f4000000-f50fffff ioport:c0000000(size=301989888)
*-display
description: VGA compatible controller
product: GT218 [GeForce 210]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:02:00.0
version: a2
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=nouveau latency=0
resources: irq:17 memory:f4000000-f4ffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:d000(size=128) memory:f5000000-f507ffff
*-multimedia
description: Audio device
product: High Definition Audio Controller
vendor: NVIDIA Corporation
physical id: 0.1
bus info: pci@0000:02:00.1
version: a1
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:18 memory:f5080000-f5083fff
*-display
description: Display controller
product: 2nd Generation Core Processor Family Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=i915 latency=0
resources: irq:56 memory:f7400000-f77fffff memory:b0000000-bfffffff ioport:f000(size=64)
