Nouveau Gets A LED Driver To Control Light-Up GeForce Logos
Written by Michael Larabel in Nouveau on 24 August 2016 at 09:16 AM EDT. 19 Comments
NOUVEAU --
For those with a TITAN X or other high-end GPUs that have a configurable light-up "GeForce" LED sign along the edge of the graphics card, a new Nouveau driver allows manipulating those LEDs.

Martin Peres of Intel OTC who continues hacking on Nouveau in his spare time received a donation of a GeForce GTX TITAN graphics card. He decided to play around with the "useless" feature of being able to manipulate the brightness of the LEDs powering this light-up display.

He's written a basic LED driver that hooks up to the LED subsystem and in turn allowing to sync the blinking to the CPU/disk/network activity or other manual controls.


Martin noted with the fun patch where he implemented this LED control support in less than 200 lines of code, "Users may also implement some breathing effect or morse code support in the userspace if they feel like it."

This configurable LED support for the GeForce logo has long been exposed under Windows on supported hardware.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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