eden/docs/DriverBugs.md

Driver bugs

Non-exhaustive list of known drivers bugs.

See also: Dolphin emulator own list of driver bugs (which are also included here).

Vulkan

Vendor/GPU	OS	Drivers	Version	Bug
AMD	All	Proprietary	?	VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT on GCN4 and lower is broken.
AMD	All	Proprietary	?	GCN4 and earlier have broken VK_EXT_sampler_filter_minmax.
AMD	All	Proprietary	?	If offset + stride * count is greater than the size, then the last attribute will have the wrong value for vertex buffers.
AMD	All	Proprietary	?	On GCN, 2D mipmapped texture arrays (with width == height) where there are more than 6 layers causes broken corrupt mipmaps.
AMD	All	RADV, MESA	?	Using LLVM emitter causes corrupt FP16, proprietary drivers unaffected.
AMD	All	Proprietary	?	Incorrect implementation of VK_EXT_depth_clamp_control causes incorrect depth values to be written to the depth buffer.
AMD	macOS	Proprietary	?	gl_HelperInvocation is actually !gl_HelperInvocation.
NVIDIA	All	Proprietary	?	Drivers for ampere and newer have broken float16 math.
NVIDIA	All	Proprietary	>=510.0.0	Versions >= 510 do not support MSAA->MSAA image blits.
NVIDIA	All	Proprietary	?	Shader stencil export not supported.
NVIDIA	All	Proprietary	?	Doesn't properly support conditional barriers.
NVIDIA	All	Proprietary	?	GPUs pre-turing doesn't properly work with push descriptors.
NVIDIA	All	All	?	Calling vkCmdClearAttachments with a partial rect, or specifying a render area in a render pass with the load op set to clear can cause the GPU to lock up, or raise a bounds violation. This only occurs on MSAA framebuffers, and it seems when there are multiple clears in a single command buffer. Worked around by back to the slow path (drawing quads) when MSAA is enabled.
Intel	All	Proprietary	<27.20.100.0	Intel Windows versions before 27.20.100.0 has broken VK_EXT_vertex_input_dynamic_state.
Intel	All	Proprietary	?	Intel proprietary drivers do not support MSAA->MSAA image blits.
Intel	All	Proprietary	0.405.0 until 0.405.286	Intel proprietary drivers 0.405.0 until 0.405.286 have broken compute.
Intel	macOS	Proprietary	?	Using dynamic sampler indexing locks up the GPU.
Intel	macOS	Proprietary	?	Using subgroupMax in a shader that can discard results in garbage data.
Intel	All	Mesa	?	Broken lines in geometry shaders when writing to gl_ClipDistance in the vertex shader.
Qualcomm	All	Proprietary	?	Using too many samplers (on A8XX is 65536) can cause heap exhaustion, recommended to use 75% of total available samplers.
Qualcomm	All	Proprietary	?	Qualcomm Adreno GPUs doesn't handle scaled vertex attributes VK_KHR_SHADER_FLOAT_CONTROLS_EXTENSION_NAME.
Qualcomm	All	Proprietary	?	64-bit integer extensions (VK_KHR_SHADER_ATOMIC_INT64_EXTENSION_NAME) cause nondescriptive crashes and stability issues.
Qualcomm	All	All	?	Driver requires higher-than-reported binding limits (32).
Qualcomm	All	All	?	On Adreno, enabling rasterizer discard somehow corrupts the viewport state; a workaround is forcing it to be updated on next use.
Qualcomm	All	Proprietary	?	Concurrent fence waits are unsupported.
Qualcomm	All	Proprietary	?	vkCmdCopyImageToBuffer allocates a staging image when used to copy from an image with optimal tiling; which results in overall slower performance.
Qualcomm	All	Proprietary	?	32-bit depth clears are broken in the Adreno Vulkan driver, and have no effect.
Qualcomm	All	Proprietary	?	It should be safe to release the resources before actually resetting the VkCommandPool. However, devices running R drivers there was a few months period where the driver had a bug which it incorrectly was accessing objects on the command buffer while it was being reset. If these objects were already destroyed (which is a valid thing to do) it would crash.
Qualcomm	All	Proprietary	?	On Pixel and Pixel2XL's with Adreno 530 and 540s, setting width and height to 10s reliably triggers what appears to be a driver race condition.
Qualcomm	All	Proprietary	?	Non-descriptive broken OpPhi SPIRV lowering, originally using OpPhi to choose the result is crashing on Adreno 4xx. Switched to storing the result in a temp variable as glslang does.
Qualcomm	All	Proprietary	?	See crbug.com/1241134. The bug appears on Adreno 5xx devices with OS PQ3A. It does not repro on the earlier PPR1 version since the extend blend func extension was not present on the older driver.
Mali	Android	Proprietary	?	Non-descriptive green screen on various locations.
Mali	Android	Proprietary	?	Cached memory is significantly slower for readbacks than coherent memory in the Mali Vulkan driver, causing high CPU usage in the __pi___inval_cache_range kernel function.
Mali	Android	Proprietary	?	On some old ARM driver versions, dynamic state for stencil write mask doesn't work correctly in the presence of discard or alpha to coverage, if the static state provided when creating the pipeline has a value of 0 (alphaToCoverageEnable and rasterizerDiscardEnable).
Mali	Android	Proprietary	?	Failing to submit because of a device loss still needs to wait for the fence to signal before deleting. However, there is an ARM bug (b/359822580) where the driver early outs on the fence wait if in a device lost state and thus we can't wait on it. Instead, we just wait on the queue to finish.
Mali	Android	Proprietary	?	With Galaxy S7 we see lots of rendering issues when we suballocate VkImages.
Mali	Android	Proprietary	?	With Galaxy S7 and S9 we see lots of rendering issues with image filters dropping out when using only primary command buffers. We also see issues on the P30 running Android 28.
Mali	Android	Proprietary	?	RGBA_F32 mipmaps appear to be broken on some Mali devices.
Mali	Android	Proprietary	?	Matrix IR lowering for matrix swizzle, scalar multiplication and unary (+m)/(-m) present extraneous unexplained bugs with more than 32 matrix temporals.
Apple	All	MoltenVK	?	Driver breaks when using more than 16 vertex attributes/bindings.
Apple	macOS	Proprietary	>4	Some driver and Apple Silicon GPU combinations have problems with fragment discard when early depth test is enabled. Discarded fragments may appear corrupted.
Apple	iOS	MoltenVK	?	Null descriptors cause non-descriptive issues.
Apple	iOS	MoltenVK	?	Push descriptors cause non-descriptive issues.
Imagination	Android	Proprietary	?	Some vulkan implementations don't like the 'clear' loadop renderpass if you try to use a framebuffer with a different load/store op than that which it was created with, despite the spec saying they should be compatible.
Intel Qualcomm AMD Apple	All	All MoltenVK (Apple)	?	Reversed viewport depth range does not work as intended on some Vulkan drivers. The Vulkan spec allows the minDepth/maxDepth fields in the viewport to be reversed, however the implementation is broken on some drivers.

AMD: List of driver IDs:

• Proprietary: VK_DRIVER_ID_AMD_PROPRIETARY
• OSS: VK_DRIVER_ID_AMD_OPEN_SOURCE
• MESA: VK_DRIVER_ID_MESA_RADV

NVIDIA: List of driver IDs:

• Proprietary: VK_DRIVER_ID_NVIDIA_PROPRIETARY.
• MESA: VK_DRIVER_ID_MESA_NVK.

Intel: List of driver IDs:

• Proprietary: VK_DRIVER_ID_INTEL_PROPRIETARY_WINDOWS.
• MESA: VK_DRIVER_ID_INTEL_OPEN_SOURCE_MESA.

Qualcomm: List of driver IDs:

• Proprietary: VK_DRIVER_ID_QUALCOMM_PROPRIETARY.
• MESA: VK_DRIVER_ID_MESA_TURNIP.

Mali: List of driver IDs:

• Proprietary: VK_DRIVER_ID_ARM_PROPRIETARY.
• MESA: VK_DRIVER_ID_MESA_PANVK.

Samsung: List of driver IDs:

• Proprietary: VK_DRIVER_ID_SAMSUNG_PROPRIETARY.

Apple: List of driver IDs:

• MoltenVK/MVK: VK_DRIVER_ID_MOLTENVK.
• KosmicKrisp: VK_DRIVER_ID_MESA_KOSMICKRISP.
• HoneyKrisp: VK_DRIVER_ID_MESA_HONEYKRISP.

PowerVR: List of driver IDs:

• Proprietary: VK_DRIVER_ID_IMAGINATION_PROPRIETARY.
• MESA: VK_DRIVER_ID_IMAGINATION_OPEN_SOURCE_MESA.

Software Rasterizers: List of driver IDs:

• SwiftShader: VK_DRIVER_ID_GOOGLE_SWIFTSHADER.
• LLVMPipe: VK_DRIVER_ID_MESA_LLVMPIPE.

Broadcom: List of driver IDs:

• Proprietary: VK_DRIVER_ID_BROADCOM_PROPRIETARY.
• MESA: VK_DRIVER_ID_MESA_V3DV.

Verisilicon: List of driver IDs:

• Proprietary: VK_DRIVER_ID_VERISILICON_PROPRIETARY.

Other: List of driver IDs:

• SC: VK_DRIVER_ID_VULKAN_SC_EMULATION_ON_VULKAN.
• GGP (Stadia): VK_DRIVER_ID_GGP_PROPRIETARY.
• CoreAVI (Cars): VK_DRIVER_ID_COREAVI_PROPRIETARY.
• Juice (Remote GPU): VK_DRIVER_ID_JUICE_PROPRIETARY.
• Venus (Virtio GPU): VK_DRIVER_ID_MESA_VENUS.
• Dozen (Vulkan on DirectX): VK_DRIVER_ID_MESA_DOZEN.

OpenGL

Vendor/GPU	OS	Drivers	Version	Bug
All	Android	All	?	In OpenGL, multi-threaded shader pre-compilation sometimes crashes.
All	All	Mesa	?	https://github.com/KhronosGroup/glslang/pull/2646