Checklist/RFC GraphicsDevices

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Introduction

It may be possible to solve this checkpoint-restart problem using the same solution(s) for "hybrid graphics" on Linux. Hybrid graphics "instantly" switch from one graphics chipset to another in order to save power. Depending on how the switch is performed we may be able to have checkpoint look like the first half of the switch followed by restart performing the second half. One big difference is we don't necessarily know the display device that we are switching to at the time of the switch. A detail to keep in mind: even existing hybrid solutions might utilize graphics chipsets from different vendors -- this is useful for checkpoint/restart since switching between cards from different vendors is quite likely when migrating between machines. (Note: see link entitled "Hybrid Graphics Comes To Linux In Crude Form" for hybrid Intel/ATI graphics)

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