14 Mar '17, 5pm

Just posted: "Enabling Optimus NVIDIA GPU on the Dell XPS 15 with Linux, even on Battery"

Optimus is the hybrid graphics card technology, which enables a low power Intel GPU as the primary card that you can bridge to the secondary, power demanding, NVIDIA GPU, just when you really need it. optirun is the command you use to make this bridge. "NVIDIA" is what we call the official proprietary binaries. On Arch it's available on package "linux410-nvidia". "Nouveau" is the open source driver, it uses Primus to make the bridge instead of optirun . I understand that you should avoid this driver for now if you need full performance and full compliance from the GPU. "Bumblebee" is a daemon used to enable and disable the NVIDIA GPU. You don't want it enabled all the time, specially when running on battery, to avoid draining it too fast. "bbswitch" is the kernel module that does the low level ACPI calls to control the power state of the NVIDIA GPU card. "TLP" is the gener...

Full article: http://www.akitaonrails.com/2017/03/14/enabling-optimus-n...

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