Blaze3DLinuxFix
Handles a NullPointerException in Minecraft 26.1 preventing it from starting on some Linux distros, such as CachyOS.
About this Mod
Blaze3DLinuxFix
Handles a NullPointerException in Minecraft 26.1 preventing it from starting on some Linux distros, such as CachyOS.
Not always needed. All it does is replace setupKeyboardCallbacks in com.mojang.blaze3d.platform.InputConstants with a version that try/catches each line, ignoring NullPointerException.
Licensed MIT.
Error log for vanilla Minecraft 26.1 on CachyOS with GLFW 3.4. (same error happens on GLFW 3.5, though that isn't released yet as far as I can tell)
Thread: Render thread
Stacktrace:
at org.lwjgl.system.Checks.check(Checks.java:188) ~[lwjgl-3.4.1.jar:build 2] {}
at org.lwjgl.glfw.GLFW.nglfwSetPreeditCallback(GLFW.java:1911) ~[lwjgl-glfw-3.4.1.jar:build 2] {}
at org.lwjgl.glfw.GLFW.glfwSetPreeditCallback(GLFW.java:1920) ~[lwjgl-glfw-3.4.1.jar:build 2] {}
at TRANSFORMER/[email protected]/com.mojang.blaze3d.platform.InputConstants.setupKeyboardCallbacks(InputConstants.java:208) ~[minecraft-client-patched-26.1.2.30-beta.jar:?]
Available Versions
How to Install Blaze3DLinuxFix on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "Blaze3DLinuxFix". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 26.1.1, 26.1
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Blaze3DLinuxFix server crashes on startup – what to do?
Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.
Is Blaze3DLinuxFix compatible with neoforge?
Blaze3DLinuxFix officially supports neoforge for Minecraft 26.1.2, 26.1.1, 26.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Blaze3DLinuxFix – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Blaze3DLinuxFix consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
Rent Modded Server
Install Blaze3DLinuxFix with just one click on your server.