1deb2d2ecSBenjamin Herrenschmidtconfig VGA_ARB 2deb2d2ecSBenjamin Herrenschmidt bool "VGA Arbitration" if EMBEDDED 3deb2d2ecSBenjamin Herrenschmidt default y 4deb2d2ecSBenjamin Herrenschmidt depends on PCI 5deb2d2ecSBenjamin Herrenschmidt help 6deb2d2ecSBenjamin Herrenschmidt Some "legacy" VGA devices implemented on PCI typically have the same 7deb2d2ecSBenjamin Herrenschmidt hard-decoded addresses as they did on ISA. When multiple PCI devices 8deb2d2ecSBenjamin Herrenschmidt are accessed at same time they need some kind of coordination. Please 9deb2d2ecSBenjamin Herrenschmidt see Documentation/vgaarbiter.txt for more details. Select this to 10deb2d2ecSBenjamin Herrenschmidt enable VGA arbiter. 116a9ee8afSDave Airlie 126a9ee8afSDave Airlieconfig VGA_SWITCHEROO 136a9ee8afSDave Airlie bool "Laptop Hybrid Grapics - GPU switching support" 146a9ee8afSDave Airlie default y 156a9ee8afSDave Airlie depends on X86 166a9ee8afSDave Airlie depends on ACPI 176a9ee8afSDave Airlie help 186a9ee8afSDave Airlie Many laptops released in 2008/9/10 have two gpus with a multiplxer 196a9ee8afSDave Airlie to switch between them. This adds support for dynamic switching when 206a9ee8afSDave Airlie X isn't running and delayed switching until the next logoff. This 216a9ee8afSDave Airlie features is called hybrid graphics, ATI PowerXpress, and Nvidia 226a9ee8afSDave Airlie HybridPower. 236a9ee8afSDave Airlie 24