config VGA_ARB bool "VGA Arbitration" if EMBEDDED default y depends on PCI help Some "legacy" VGA devices implemented on PCI typically have the same hard-decoded addresses as they did on ISA. When multiple PCI devices are accessed at same time they need some kind of coordination. Please see Documentation/vgaarbiter.txt for more details. Select this to enable VGA arbiter.
config VGA_ARB_MAX_GPUS int "Maximum number of GPUs" default 16 depends on VGA_ARB help Reserves space in the kernel to maintain resource locking for multiple GPUS. The overhead for each GPU is very small.
config VGA_SWITCHEROO bool "Laptop Hybrid Grapics - GPU switching support" depends on X86 depends on ACPI help Many laptops released in 2008/9/10 have two gpus with a multiplxer to switch between them. This adds support for dynamic switching when X isn't running and delayed switching until the next logoff. This features is called hybrid graphics, ATI PowerXpress, and Nvidia HybridPower.
