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Ubuntu - GPU - Vulkan - Set Vulkan Driver

There are a number of drivers for Vulkan.

Some provide better performance than others.

Drivers include:

MESA RADV: The Mesa RADV Driver.
MESA LLVMPIPE: The Mesa LLVMPIPE Driver.
AMDVLK: The AMD Vulkan Driver.

See Check what Vulkan implementations are currently installed

Set LLVMPIPE as the Vulkan Driver

export VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/lvp_icd.x86_64.json:/usr/share/vulkan/icd.d/lvp_icd.i686.json

Check that the driver is being picked up

vulkaninfo | grep driver

returns:

	driverVersion     = 1 (0x0001)
	driverID           = DRIVER_ID_MESA_LLVMPIPE
	driverName         = llvmpipe
	driverInfo         = Mesa 23.1.2 - kisak-mesa PPA (LLVM 15.0.7)
	driverUUID      = 6c6c766d-7069-7065-5555-494400000000
	driverUUID                        = 6c6c766d-7069-7065-5555-494400000000
	driverID                                             = DRIVER_ID_MESA_LLVMPIPE
	driverName                                           = llvmpipe
	driverInfo                                           = Mesa 23.1.2 - kisak-mesa PPA (LLVM 15.0.7)
	VK_KHR_driver_properties                     : extension revision 1

Set MESA RADV as the Vulkan Driver

export VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/radeon_icd.x86_64.json:/usr/share/vulkan/icd.d/radeon_icd.i686.json

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Ubuntu - GPU - Vulkan - Set Vulkan Driver

Set LLVMPIPE as the Vulkan Driver

Check that the driver is being picked up

Set MESA RADV as the Vulkan Driver