cmppatcher

A one-shot Linux installer that patches NVIDIA mining and compute GPU drivers to restore functionality on CMP series and legacy Pascal mining GPUs.

After running sudo bash install.sh once, all CUDA, OpenGL, and Vulkan applications operate at full recoverable performance with no per-application configuration required. Patches are automatically re-applied whenever the NVIDIA driver is updated.

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Overview

cmppatcher removes artificial limitations imposed on mining GPUs by modifying both user-space libraries and kernel components. It enables full 3D acceleration, unlocks video encoding capabilities where available, and restores compute performance on supported hardware.

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Features

1. 3D Acceleration Unlock (All Supported GPUs)

Mining GPUs ship with OpenGL and Vulkan disabled via driver-level PCI device ID restrictions.

cmppatcher patches:

• libcuda.so
• libnvidia-glcore.so
• libGLX_nvidia.so
• nvidia.ko (kernel module)

These modifications allow the driver to recognize and fully enable 3D acceleration on supported GPUs.

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2. FP32 FMA Throttle Bypass (CMP 170HX Only)

The CMP 170HX includes a hardware-level limitation that reduces FFMA instruction throughput by a factor of 16.

cmppatcher installs a persistent SASS-level rewriting daemon that:

• Intercepts CUDA module loads
• Replaces FFMA instructions with equivalent FMUL + FADD sequences
• Restores practical FP32 compute throughput without requiring application changes

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3. NVENC & NvFBC Unlock

Removes software-imposed limits on NVENC encoding sessions and enables NvFBC support.

• Dynamically fetches patch patterns from the official repository: https://github.com/keylase/nvidia-patch
• Automatically skips NVENC patching on CMP 170HX (GA100 has no NVENC hardware)

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4. Persistent Across Driver Updates

Integrates with system package managers to automatically reapply patches after driver updates.

Supported package managers:

• apt
• dnf
• pacman

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Supported Hardware

Ampere CMP Series

GPU	PCI ID	Features
CMP 170HX	0x2081	3D unlock + FMA bypass
CMP 90HX	0x1F0B	3D unlock
CMP 70HX	0x1EFC	3D unlock

Turing CMP Series

GPU	PCI ID	Features
CMP 50HX	0x1EBC	3D unlock
CMP 40HX	0x1E49	3D unlock
CMP 30HX	0x1E09	3D unlock

Pascal Mining Series

GPU	PCI ID	Features
P102-100	0x1B07	3D unlock
P104-100	0x1B87	3D unlock
P104-101	0x1C09	3D unlock
P106-100	0x1BC7	3D unlock
P106-090	0x1C07	3D unlock

Additional supported IDs:
0x2082, 0x2083, 0x2089, 0x20C2, 0x20C3, 0x220D, 0x224D, 0x248A, 0x248D, and more

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Installation

Prerequisite

Secure Boot must be disabled in your system firmware (UEFI/BIOS).
The patch modifies the nvidia.ko kernel module, which will not load if signature enforcement is enabled.

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Steps

git clone https://github.com/theneocorp/cmppatcher.git
cd cmppatcher

sudo install.sh