1config VGA_ARB 2 bool "VGA Arbitration" if EMBEDDED 3 default y 4 depends on PCI 5 help 6 Some "legacy" VGA devices implemented on PCI typically have the same 7 hard-decoded addresses as they did on ISA. When multiple PCI devices 8 are accessed at same time they need some kind of coordination. Please 9 see Documentation/vgaarbiter.txt for more details. Select this to 10 enable VGA arbiter. 11 12config VGA_SWITCHEROO 13 bool "Laptop Hybrid Grapics - GPU switching support" 14 default y 15 depends on X86 16 depends on ACPI 17 help 18 Many laptops released in 2008/9/10 have two gpus with a multiplxer 19 to switch between them. This adds support for dynamic switching when 20 X isn't running and delayed switching until the next logoff. This 21 features is called hybrid graphics, ATI PowerXpress, and Nvidia 22 HybridPower. 23 24