ColdGPU Fix
by RealMikoto
ColdGPU Fix addresses a black window that appears on first launch after boot on some NVIDIA Optimus laptops, where the discrete GPU is not ready when the game starts.
What it does
On certain NVIDIA Optimus laptops the discrete GPU can be cold when Minecraft first configures its swapchain. In vanilla 26.2 that first configuration can fail, and the game never retries, which leaves the window permanently black while the game keeps running in the background.
The mod changes that behavior: it has the engine retry the swapchain reconfiguration every frame until the discrete GPU is ready, and the picture recovers on its own within a few seconds. No second launch is needed. The fix is aimed at the Optimus setup described in the author notes, tested with NVIDIA driver branch 596.36.
ColdGPU Fix is a client-side only mod, so only the player's client needs it and servers do not. It is released under the MIT License, is not open source, and is published for Fabric and NeoForge. Files cover five release versions, 26.1 – 26.3, with 1.0.0 for 26.3 as the latest file on both loaders, dated 2026-09-26.
Key features
Black screen recovery
Recovers the game window after a failed first swapchain configuration on a cold discrete GPU.
Per-frame retry
Reconfigures the swapchain every frame until the discrete GPU reports ready, instead of giving up after one attempt.
No second launch
Players do not need to restart Minecraft after the first failed start, because the picture returns in seconds.
Optimus laptop target
Aimed at NVIDIA Optimus laptops where the discrete GPU sleeps at boot, the setup described in the author notes.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Optimus laptop at boot
A player on an Optimus laptop starts Minecraft from cold and gets a black window that never clears without this mod.
Who it’s for: Players on NVIDIA Optimus laptops who see a black window on the first launch after boot. Players on other hardware have no reason to use it, since the fix is specific to that startup failure.
Questions
Which loaders does ColdGPU Fix support?
Does the server need ColdGPU Fix?
Does the fix need a particular NVIDIA driver?
In the catalog
ColdGPU Fix is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 8,071 mods support Minecraft 26.3.
More from RealMikoto
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What the author says
[EN] Fixes the black screen on the first launch after boot on NVIDIA Optimus laptops (e.g. driver branch 596.36). On a cold discrete GPU, the first swapchain configuration can fail and vanilla 26.2 never retries it, leaving a permanently black window while the game keeps running. This mod makes the engine retry…
Official listing
- Modrinth page
- modrinth.com/mod/coldgpu-fix
- Owner
- RealMikoto
- Published
- 2026-08-18
- Updated on Modrinth
- 2026-09-26
- Facts verified
- 2026-10-15