| 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 2 | config VGA_SWITCHEROO |
| 3 | bool "Laptop Hybrid Graphics - GPU switching support" |
| 4 | depends on X86 |
| 5 | depends on ACPI |
| 6 | depends on PCI |
| 7 | depends on FB=y |
| 8 | select VGA_ARB |
| 9 | help |
| 10 | Many laptops released in 2008/9/10 have two GPUs with a multiplexer |
| 11 | to switch between them. This adds support for dynamic switching when |
| 12 | X isn't running and delayed switching until the next logoff. This |
| 13 | feature is called hybrid graphics, ATI PowerXpress, and Nvidia |
| 14 | HybridPower. |