У кого 2 и более GPU

# lshw -class display
  *-display UNCLAIMED     
       description: VGA compatible controller
       product: R700 [Radeon HD 4850]
       vendor: ATI Technologies Inc
       physical id: 0
       bus info: pci@0000:03:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list
       configuration: latency=0
       resources: memory:d0000000-dfffffff memory:f5000000-f500ffff ioport:9000(size=256) memory:f4000000-f401ffff
  *-display UNCLAIMED
       description: Display controller
       product: R700 [Radeon HD 4850]
       vendor: ATI Technologies Inc
       physical id: 0
       bus info: pci@0000:04:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi bus_master cap_list
       configuration: latency=0
       resources: memory:e0000000-efffffff memory:f7000000-f700ffff ioport:a000(size=256) memory:f6000000-f601ffff

  *-display               
       description: VGA compatible controller
       product: RS780M/RS780MN [Radeon HD 3200 Graphics]
       vendor: ATI Technologies Inc
       physical id: 5
       bus info: pci@0000:01:05.0
       version: 00
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi vga_controller cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:18 memory:b0000000-bfffffff ioport:b000(size=256) memory:fdcf0000-fdcfffff memory:fdb00000-fdbfffff
  *-display
       description: VGA compatible controller
       product: Mobility Radeon HD 3650
       vendor: ATI Technologies Inc
       physical id: 0
       bus info: pci@0000:02:00.0
       version: 00
       width: 32 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:42 memory:c0000000-dfffffff ioport:c000(size=256) memory:fddf0000-fddfffff memory:fddc0000-fdddffff

  *-display               
       description: VGA compatible controller
       product: ATI Technologies Inc
       vendor: ATI Technologies Inc
       physical id: 0
       bus info: pci@0000:07:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=fglrx_pci latency=0
       resources: irq:31 memory:d0000000-dfffffff memory:fbfc0000-fbfdffff ioport:e000(size=256) memory:fbfa0000-fbfbffff
  *-display
       description: Display controller
       product: ATI Technologies Inc
       vendor: ATI Technologies Inc
       physical id: 0
       bus info: pci@0000:06:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi bus_master cap_list rom
       configuration: driver=fglrx_pci latency=0
       resources: irq:32 memory:c0000000-cfffffff memory:fbee0000-fbefffff ioport:d000(size=256) memory:fbec0000-fbedffff

  *-display               
       description: VGA compatible controller
       product: G92 [GeForce 9800M GTX]
       vendor: nVidia Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       version: a2
       width: 64 bits
       clock: 33MHz
       capabilities: vga_controller bus_master cap_list
       configuration: driver=nvidia latency=0
       resources: irq:16 memory:e1000000-e1ffffff memory:c0000000-cfffffff memory:e2000000-e3ffffff ioport:2000(size=128)
  *-display
       description: VGA compatible controller
       product: G92 [GeForce 9800M GTX]
       vendor: nVidia Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       version: a2
       width: 64 bits
       clock: 33MHz
       capabilities: vga_controller bus_master cap_list rom
       configuration: driver=nvidia latency=0
       resources: irq:17 memory:e6000000-e6ffffff memory:d0000000-dfffffff memory:e4000000-e5ffffff ioport:3000(size=128)