D3D12 used without trying Vulkan
Your game went straight to D3D12 without trying Vulkan first. On build 45 every Windows log posted so far does this.
What you see
The log shows D3D12 starting up with no Vulkan lines before it.
Who's affected
Every build 45 log posted on 26 Sep, on NVIDIA, AMD and Intel. Before that, an AMD RX 9060 XT on builds 41 and 44.
Why it happens
An early release note said Windows users default to D3D12. If Settings.cfg says graphics_api=D3D12, Luduvo may skip Vulkan entirely. Build 45 seems to start every Windows PC on D3D12, and nobody has said yet whether the setting still changes that. unconfirmed
What to do
- Press Win + R, paste %APPDATA%\Luduvo\Client and press Enter. Copy Settings.cfg somewhere safe first.
- Open Settings.cfg in Notepad and find the graphics_api line.
- If it says D3D12 and your graphics card supports Vulkan 1.3, you could change it to Vulkan and save. Nobody on the forum has confirmed this fixes the client yet. unconfirmed
Don't bother with
- Editing any other Luduvo file.
Status
No staff word on this one yet.
How the Doctor spots it
It looks for log lines like these (patterns, not exact text):
[d3d12] backend init begin
Sources
- AMD log with no Vulkan attempt, build 41 forum
- AMD log with no Vulkan attempt, build 44 forum
- NVIDIA log with no Vulkan attempt, build 45 forum
- Intel log with no Vulkan attempt, build 45 forum
- Switching Studio to Vulkan fixed a D3D12 crash in July forum
Credits
- alaz, showed switching the API can help
unconfirmed means a player suggested it and nobody has confirmed it works yet.
Last checked 26 Sep 2026.