Mode Load failed - AMD RX 580 Not Recognised

[Stuff-SA]

Mode Load failed - exited with code 3221225781 when loading: CyberRealistic V8?
CPU: Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz
GPU: AMD Radeon RX 580 2048SP
Memory: 16 GB RAM (4 Cores)
OS: Windows_NT 10.0.19045

[techjarves]

Hi @Stuff-SA, this error (code 3221225781) means Windows is missing the Vulkan DLLs required to run on your AMD RX 580. We have just pushed a major update with overhauled setup scripts to resolve this. To fix it, please update your AMD GPU drivers to the latest version, run scripts/reset/reset.ps1 to clear old cache files (retains your models), and run windows.bat again to install clean backend binaries.

[Stuff-SA]

Thank you so much for your trouble and feedback. Will definately give it a try again!

[Stuff-SA]

Unfortunately, it did not resolve the problem. As I have worked many hours with Gemini Pro on the possible issues with this specific card, here is its feedback, which I think will make a lot of sense to you as well (I fed it the installation script as well after the fresh install):

PS I did install the latest Vulcan Runtime as well.

The Root Cause Analysis

Looking at your installation log, the Uncensored AI Studio setup script successfully downloaded a precompiled executable: stable-diffusion.cpp Vulkan Backend (Windows x64).

When the user interface reports "Installed, but this binary did not register a Vulkan backend on this machine," it indicates that the downloaded backend executable is actively running, querying your system for a compatible Vulkan device, and failing to initialize the connection to your GPU.

The RX 580 is based on the Polaris architecture. While the recent motherboard and CPU overhaul successfully stabilized your system hardware, the disconnect lies entirely in how this modern AI software interacts with legacy graphics drivers.

• Driver Stagnation: AMD effectively ceased updating the Windows Vulkan drivers for Polaris hardware in September 2023, leaving the architecture permanently stuck on older API versions.
• Precompiled Incompatibility: The setup script is fetching a generalized, precompiled binary. These standard binaries are compiled against newer Vulkan extensions and instructions that the RX 580 simply cannot process.
• Known Bugs: The legacy Windows drivers for Polaris contain known, unpatched flaws (such as the 16-bit unpack8 bug) that cause modern AI backends to crash or fail initialization immediately upon execution.
• The SDK Limitation: The Vulkan SDK only provides software development tools and the application loader layer. It does not update or replace the underlying Installable Client Driver (ICD) that the GPU requires to execute the complex calculations.

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The Technical Reality

The app creator pushed an update to ensure a clean setup process, but they are still feeding the exact same generalized, precompiled binary to a legacy graphics card. Unless the developer provides a specific fallback branch compiled for older architectures, the application's backend will continue to reject the RX 580.

To successfully run stable-diffusion.cpp workloads via Vulkan on an RX 580 in Windows, the standard and proven approach is to bypass precompiled files entirely and compile the backend directly from source on the local machine using CMake, explicitly enabling the -DGGML_VULKAN=ON flag. This forces the application to adapt exclusively to the legacy capabilities of your specific hardware.

However, because this specific application relies on automated scripts that overwrite or manage the backend folders (as seen in the log), manually compiling and swapping the executable would likely just be overwritten the next time the software resets or updates. The most definitive path forward is communicating directly to the developer that standard precompiled Vulkan binaries natively fail on Polaris architectures due to these specific driver limitations.

[techjarves]

Thanks for the detailed report. We identified exit code 3221225781 as Windows error 0xC0000135, meaning a required runtime DLL could not be loaded—not that the RX 580 was unsupported.
The development fix installs the required Microsoft Visual C++ runtime, replaces stale Vulkan binaries with an RX 580-tested build, and validates the correct vulkan0 device.
Once the development update is published, pull it and rerun `scripts\setup\setup.ps1

[Stuff-SA]

Thank you for keeping on focusing still on the little guy as well. Sorry for the silly question, but by when will the development update be available, and how will I know it is available?