Wayland Protocols 1.49 Released With Enhanced Multi-GPU DMA-BUF Support
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Written by Michael Larabel in Wayland on 7 June 2026 at 09:32 AM EDT. Add A Comment
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Summary
Wayland Protocols 1.49 has been released by Simon Ser, bringing improved multi-GPU support through the linux-dmabuf-v1 protocol. The update, based on work by KDE developer Xaver Hugl from 2023, addresses a key limitation where clients rendering on a non-primary GPU had no way to verify whether DMA-BUF buffer imports were successful. This enhancement improves the user experience for multi-GPU systems running Wayland.
Key quotes
· 3 pulledSimon Ser just published Wayland Protocols 1.49 as the latest version for this primary set of Wayland protocol definitions.
KDE developer Xaver Hugl worked on the improved multi-GPU support for the DMA-BUF protocol back in 2023.
For multi-GPU systems up to now where the client is rendering on a device other than the main device advertised by the compositor, there hasn't been a way for the client to know whether or not the DMA-BUF buffer import was successful.
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