Vulkan Video Encoding Returns for Intel Alchemist GPUs

A significant change has arrived for Linux users with Intel’s Arc A-series (Alchemist) GPUs. The H.264 and H.265 encoding functionality of Vulkan Video, which had been disabled earlier this year, is now available once again. According to a report by Phoronix, this revival was made possible through a merge into Mesa 26.2.

The Journey from Disabling to Revival

In early 2026, Vulkan Video’s encoding functionality was disabled for Gen12.5 and later generations of graphics hardware in the Intel ANV open-source driver. This decision was made due to insufficient testing and validation of Vulkan Video in Intel’s Linux graphics stack.

Intel has primarily focused its resources on VA-API (Video Acceleration API) and has ensured the stability of video encoding and decoding through its media driver stack and tools like oneVPL. Consequently, the development of Vulkan Video had been largely left in the hands of third-party contributors such as Red Hat and Igalia.

Igalia’s Contributions

The revival of the feature was spearheaded by Hyunjun Ko from Igalia. Ko tested the H.264 and H.265 encoding on a Gen12.5 graphics environment, specifically using the Intel Arc A750 graphics card, and confirmed that the encoding worked properly. The necessary fixes were merged into Mesa 26.2, officially enabling the ANV driver to support these codecs.

Laying the Groundwork for AV1 Encoding

The support for H.264/H.265 is seen as a stepping stone toward a more critical goal: enabling AV1 encoding via Vulkan Video. AV1 is a next-generation royalty-free video codec that is gaining widespread adoption, particularly in applications like game replay recording and live streaming, where demand is growing.

The Phoronix article suggests that AV1 encoding support may not be far off. Considering that Intel already supports AV1 encoding through VA-API, the progress made in this update could accelerate the migration of this capability to Vulkan Video.

Integration in Mesa 26.2

The fixes have been integrated into Mesa 26.2, which is currently under development and expected to be officially released in late 2026. After the release of Mesa 26.2, users of Intel ANV drivers will be able to update their drivers to enable Vulkan Video H.264/H.265 encoding on Alchemist GPUs.

It is worth noting that advancements in the Linux kernel and Mesa directly impact graphics performance. For example, recent developments such as Linux Cache Aware Scheduling Boosting MySQL By Up To 360% and Linux 7.2-rc1 Released with AMDGPU HDMI 2.1 FRL & Cache Aware Scheduling are also significant within the broader context of the Linux graphics stack.

Intel’s Strategy and the Role of the Community

While Intel prioritizes its proprietary media driver stack and oneVPL to support VA-API, the importance of Vulkan Video as a cross-platform standard continues to grow. Vulkan Video is already compatible with Windows and Android, offering application developers the advantage of using a single API across multiple operating systems.

Contributions from third parties, such as those seen in this development, bolster the foundation for the widespread adoption of Intel GPUs within the Linux ecosystem. In particular, stable Vulkan Video encoding is highly sought after for video processing workloads in creator-focused and server-side environments.

Editorial Opinion

In the short term, while users will need to wait for the release of Mesa 26.2, the restoration of this long-awaited functionality is a notable win for Linux users of the Intel Arc A-series GPUs. Applications that relied on Vulkan Video and stopped functioning earlier this year due to the disabled feature will regain compatibility with this fix. The continued support from external organizations like Igalia is particularly commendable, as it highlights the sustainability of open-source driver development.

In the long term, the broader impact of this progress on AV1 encoding support will be a key focus. Although VA-API already supports AV1, enabling this functionality via Vulkan Video offers unique advantages, especially in low-latency scenarios such as game capture and live streaming. While there are no current indications that Intel is shifting resources from VA-API to Vulkan Video, sustained community-driven development could significantly expand the scope of GPU utilization on Linux.

References

• Vulkan Video H.264/H.265 Encode Now Working For Intel Alchemist GPUs On Linux - Phoronix — Published on 2026-07-06