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Maximilian Luz edited this page Dec 14, 2020
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Welcome to the Surface Hotplug Driver wiki!
The Surface Hotplug driver (and corresponding patches) enable automatic runtime power management for the discrete GPU (dGPU) found on Microsoft Surface Book 2 and 3 devices, including D3cold support. In essence, this allows the kernel to turn on/off the dGPU as needed, if set up and configured correctly. Properly configuring runtime power management for the dGPU can lead to significant power-savings when the dGPU is not in use.
See Runtime Power Management Configuration on how to configure dGPU power-management to best fit your desired use-case. If you intend to use the dGPU with bumblebee, you may also want to look at Bumblebee Configuration.