It's Easy Now Getting GeForce GTX 900 Graphics Cards Running On Open-Source Nouveau
Written by Michael Larabel in Nouveau on 23 March 2016 at 07:00 PM EDT. 8 Comments
NOUVEAU --
Now that everything has been mainlined concerning the GeForce GTX 900 "Maxwell" support in the open-source Nouveau driver, it's relatively easy getting the hardware acceleration with OpenGL support running on this community-based, reverse-engineered Linux graphics driver.

I'm currently working on some Mesa 11.3-dev + Linux 4.6 Git benchmarks comparing the GeForce GTX 900 line-up on the open-source driver code to that of the NVIDIA 364 beta driver series. Those results should be here in a few days while this article is a quick guide covering how to get all the necessary bits in place.

Before thinking of switching over to Nouveau for the latest generation NVIDIA GPUs, keep in mind this support is still very early. Additionally, Nouveau on the GM200 Maxwell GPUs currently exposes just OpenGL 3.3 (compared to GL 4.1 with Kepler on Nouveau or OpenGL 4.5 with the binary driver), there isn't yet any pstate re-clocking support to allow these discrete GPUs to perform adequately, etc. These pseudo steps are from an install I did on Ubuntu 16.04 but should likely also work with similar distributions/releases.


Ubuntu 16.04 is shipping with Mesa 11.1 currently but Mesa 11.2 is expected to be added soon. However, for best support, you'll want Mesa Git. Switching over to Mesa Git (currently 11.3-devel) is as easy as using the Oibaf PPA. Add that PPA and then do a dist-upgrade on the system.

The firmware binary blobs needed for the Maxwell support are currently in Mesa Git. Fetch the latest firmware blobs from linux-firmware.git and install them (sudo make install).

You'll lastly need the Linux 4.6 kernel. The DRM-Next code containing the necessary updates to Nouveau DRM landed a few days ago so until the RCs begin to appear, just grab the latest Ubuntu Mainline Kernel PPA packages.

Once getting the latest Mesa, fetching the latest firmware, and installing the Linux 4.6 kernel (along with updating the initramfs if installing the firmware after the kernel upgrade), you should be good to go for then having Nouveau OpenGL acceleration working with the GeForce GTX 900 series line-ups. I did run into one small issue is that on a reboot at first I was getting strange Nouveau errors in the dmesg, but after then turning off the system and back on rather than just a reboot, everything has seemed to work out fine. I'm currently running some benchmarks of the entire GTX 900 line-up and will have them on Phoronix in the next few days.
About The Author
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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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