u/BAZAndreas

Before the update, MESA_VK_WSI_PRESENT_MODE worked globally and DXVK/Proton games respected FIFO/IMMEDIATE/MAILBOX changes on the fly.

After updating Mesa/Vulkan, DXVK/Proton swapchains fall into VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR behavior, ignoring the override.
No matter what or how it is override it ignores the variable completely.

Native Vulkan apps (vkcube) still honor FIFO, so the regression only affects the DXVK/vkd3d path.

X11 and Wayland both affected. No Proton/DXVK changes.
Regression window: Mesa 26.0.5 → 26.0.6.

Did anyone else found their games behave strange since May update ? (Not that is strange or something weird but Vsync is not honored at all now and feels sluggish a bit)