Today, Delayed GPU Switching Comes To Linux
Phoronix: Today, Delayed GPU Switching Comes To Linux
Two days ago we reported on hybrid graphics coming to Linux in a crude form that allowed switching between graphics processors on notebook computers that utilize dual graphics processors, one that's meant to deliver the best energy efficient performance while the other GPU is for maximizing the graphics performance in demanding environments. Just 24 hours after this kernel patch hit the Internet it already went through four revisions by Red Hat's David Airlie, which delivered better switching and greater notebook compatibility...
disabling one of the available graphics cards
I would like to know the same thing myself.
Originally Posted by LiquidAcid
If the IGP is not completely disabled, it would draw power and also produce unnecessary heat. The heatsink gets pretty hot.
And conversely, if one does not need the dedicated graphics for a while, it would be good if there was some way to disable it completely without having to physically remove it.