The commit_timing wayland protocol will be required by Mesa to fully implement VK_EXT_present_timing [1], specifically it is required for the presentAtAbsoluteTimeSupported feature, which in turn will be required by vkd3d-proton [2] and presumably DXVK to finally properly implement DXGI's SyncInterval > 1. [1] https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38770 [2] https://github.com/HansKristian-Work/vkd3d-proton/pull/2751