Works on RX 9070 XT. Not sure if it was there before, but I see this message now quite often:

WARNING: radv is not a conformant Vulkan implementation, testing use only.

I tested just opensource games on iGPU, but they work fine. Tested 0ad and Xonotic with:

00:02.0 VGA compatible controller [0300]: Intel Corporation TigerLake-H GT1 [UHD Graphics] [8086:9a60] (rev 01)

@kparal my best evaluation from reading the reports is that this was likely reproducible by running games on Steam with some kind of overlay (which is very common - a HUD, FPS display, whatever), possibly only on NVIDIA proprietary. I don't have any NVIDIA hardware locally unfortunately.

The reports in FEDORA-2025-82b66363b4 also seeing it on AMD cards. One of the comments claim that vkcube --validate can be used to test it, but I see this error instead (even when running this very mesa update):

$ vkcube --validate
Cannot find layer: VK_LAYER_KHRONOS_validation
vkEnumerateInstanceLayerProperties failed to find required validation layer.

Please look at the Getting Started guide for additional information.

Silly me, I just needed to do sudo dnf install vulkan-validation-layers and then it works:

$ vkcube --validate
Selected WSI platform: wayland
WARNING : GENERAL - Message Id Number: 0 | Message Id Name: Loader Message
    terminator_CreateInstance: Received return code -3 from call to vkCreateInstance in ICD /usr/lib64/libvulkan_dzn.so. Skipping this driver.

    Objects - 1
        Object[0] - VK_OBJECT_TYPE_INSTANCE, Handle 0x561b85d75950

Selected GPU 0: Intel(R) UHD Graphics (TGL GT1), type: IntegratedGpu

I was one of the people with NVIDIA h/w who had issues with FEDORA-2025-82b66363b4 and I can happily confirm that the -3 build works fine for me both generally, and when launching games via Steam.

I also hit the bug in FEDORA-2025-82b66363b4. With this update, Steam games are launching again. RTX 4070.

Works also on Arc A380

vkcube --validate segfault

dnf upgrade --refresh --advisory=FEDORA-2025-2f4ba7cd17 ❯ rpm -q mesa-dri-drivers mesa-dri-drivers-25.2.7-3.fc43.x86_64 mesa-dri-drivers-25.2.7-3.fc43.i686

vkcube --validate

cube is there , no segfault

I can confirm that the validation issue in 25.2.7-2 is fixed with this update! Thanks to everyone involved!