Open-Source Nvidia Driver Gets Huge Gaming Upgrade

NVK, the community-developed open-source graphics driver for Nvidia GPUs, has gained experimental support for Nvidia’s DLSS technology, which should come as a major upgrade for gamers.

DLSS uses AI to boost game performance by rendering games at a lower resolution and then intelligently upscaling them. This allows supported games to run at higher frame rates while maintaining image quality.

The new support has been added to the development version of Mesa 26.2, bringing NVK much closer to matching the capabilities of Nvidia’s official Linux graphics driver.

For Linux gamers who prefer open-source software, it is another major step toward having an alternative that offers many of the same gaming features.

The feature is still experimental, however. It is disabled by default because developers are still fixing bugs, and it does not yet work on every supported Nvidia graphics card.

How It Works

Rather than creating its own version of DLSS, NVK uses Nvidia’s existing DLSS software.

When a compatible game requests DLSS, NVK loads Nvidia’s precompiled code, software that has already been prepared to run on Nvidia graphics cards, instead of building its own replacement.

Users who want to try the feature must manually enable it using the following environment variable:

NVK_EXPERIMENTAL=dlss

The “experimental” label means the feature is still under active development and may not work correctly in every game or on every system.

Why Compatibility is Limited

The biggest limitation is that NVK depends on Nvidia’s prebuilt DLSS files.

If Nvidia has not included a version of those files that matches a particular graphics card, DLSS will simply not work on that GPU.

Nvidia’s official Linux driver avoids this problem because it can prepare the required code for each graphics card on the fly. NVK currently cannot do that, which means compatibility depends entirely on whether Nvidia already provides the necessary files.

As a result, one Nvidia GPU may support DLSS through NVK while another may not, even if both are technically capable of running the feature.

Development Progress

Valve developer Autumn Ashton first demonstrated DLSS running through NVK last year and submitted the initial code needed to make it possible.

Around two months ago, developer Thomas Andersen resumed work on the project, fixing outstanding issues and preparing the changes for inclusion in Mesa 26.2.

The update also adds support for Nvidia-specific Vulkan features required to make DLSS function.

Major Win for Linux Gamers

Nvidia’s official Linux driver has supported DLSS for several years, so this is not the first time Linux users have been able to use the technology.

Instead, the update brings DLSS to NVK, the community-developed open-source graphics driver. This gives Linux users who prefer open-source software access to another major gaming feature that was previously unavailable.

The support is still in its early stages, and broader Linux gaming compatibility remains a work in progress. For example, some Windows games running through Proton still do not fully support the latest version of DLSS.

About NVK

Development of NVK began in 2022 as a new open-source graphics driver for Nvidia GPUs.

The project is led by Collabora’s Faith Ekstrand, with contributions from Karol Herbst, Dave Airlie, and other open-source developers.

NVK is part of Mesa, the widely used open-source graphics software for Linux, and works alongside the Nouveau kernel driver. It is separate from Nvidia’s own graphics driver.

The driver already supports multiple generations of Nvidia graphics cards and fully complies with the latest Vulkan 1.4 graphics standard.

While experimental DLSS support is a significant milestone, it still relies on Nvidia’s closed-source DLSS software. Even so, it brings NVK another step closer to offering an open-source Linux gaming experience that rivals Nvidia’s official driver.