Differences

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--- ubuntu:gpu:vulkan [2023/06/04 20:54] – [Vulkan Segmentation Error] peter
+++ ubuntu:gpu:vulkan [2023/08/02 22:31] (current) – peter
@@ Line 5: / Line 5: @@
 **Vulkan** is a new generation graphics and compute API that provides high-efficiency, cross-platform access to modern GPUs.
-----
-===== Vulkan Segmentation Error =====
+  * The recommended Vulkan driver is the Mesa RADV driver on either LLVM or ACO.
+  * AMDVLK also works okay in most scenarios, but can be a bit slower and has notable bugs in some games.
-<code bash>
+----
-vulkaninfo
-</code>
-returns:
+[[Ubuntu:GPU:Vulkan:Check what Vulkan implementations are currently installed|Check what Vulkan implementations are currently installed]]
-<code bash>
+[[Ubuntu:GPU:Vulkan:Get Vulkan Information|Get Vulkan Information]]
-WARNING: [Loader Message] Code 0 : terminator_CreateInstance: Failed to CreateInstance in ICD 0.  Skipping ICD.
-Segmentation fault (core dumped)
-</code>
-To fix:
+[[Ubuntu:GPU:Vulkan:Set Vulkan Driver|Set Vulkan Driver]]
-Rename the file /usr/share/vulkan/icd.d/lvp_icd.x86_64.json
+[[Ubuntu:GPU:Vulkan:Troubleshooting|Troubleshooting]]
-<WRAP info>
+[[Ubuntu:GPU:Vulkan:vkcube|vkcube]]
-**NOTE:**  Find out which package provide this file: <code bash>
-dpkg -S /usr/share/vulkan/icd.d/lvp_icd.x86_64.json
-returns:
+[[Ubuntu:GPU:Vulkan:Vulkan Tools|Vulkan Tools]]
-mesa-vulkan-drivers:amd64: /usr/share/vulkan/icd.d/lvp_icd.x86_64.json
+[[Ubuntu:GPU:Vulkan:Vulkan Try New Version|Vulkan Try New Version]]
-</code>
-</WRAP>
+----
-or
+===== Vulkan Tests =====
-<code bash>
+https://github.com/SaschaWillems/Vulkan
-export VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/radeon_icd.x86_64.json:/usr/share/vulkan/icd.d/radeon_icd.i686.json
-</code>
-and retest:
-<code bash>
-vulkaninfo
-</code>
-returns:
-<code bash>
-ERROR: [../src/amd/vulkan/radv_device.c:766] Code 0 : This version of RADV does not support RDNA3 yet. (VK_ERROR_INCOMPATIBLE_DRIVER)
-ERROR: [Loader Message] Code 0 : setup_loader_term_phys_devs:  Failed to detect any valid GPUs in the current config
-ERROR: [Loader Message] Code 0 : setup_loader_tramp_phys_devs:  Failed during dispatch call of 'vkEnumeratePhysicalDevices' to lower layers or loader to get count.
-ERROR at ./vulkaninfo/vulkaninfo.h:230:vkEnumeratePhysicalDevices failed with ERROR_INITIALIZATION_FAILED
-</code>
 ----
+<WRAP info>
+**NOTE:**  Radeon Vulkan "RADV" driver has enabled the Valve-backed ACO shader compiler by default rather than AMDs official AMDGPU LLVM shader compiler back-end.
-====== vkcube ======
+It has feature parity with the AMDGPU LLVM back-end, RADV is now defaulting to using ACO in place of the AMDGPU LLVM shader compiler.
+</WRAP>
 ----
 ===== References =====
@@ Line 72: / Line 49: @@
 https://en.wikipedia.org/wiki/Vulkan
+https://github.com/SaschaWillems/Vulkan
+https://github.com/GPUOpen-Drivers/AMDVLK
+https://vulkan.gpuinfo.org/listdevices.php