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README.md

NVENC and NvFBC patches for Nvidia drivers

NVENC patch removes restriction on maximum number of simultaneous NVENC video encoding sessions imposed by Nvidia to consumer-grade GPUs.

NvFBC patch allows to use NvFBC on consumer-grade GPUs. It should be applied same way as NVENC patch.sh, except you have to use patch-fbc.sh instead.

Main target operating system is GNU/Linux, but for Windows support see win (clickable).

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You can say thanks to the author and support ongoing efforts with donations to these wallets:

BTC: 1Q9uQAFNviHZEW7yT5sNsi4MJnxaL2tvvK
ETH: 0xE55e48b116D0dd4d26adafB65B92e74F0ac73636

Mirrors

IPFS site mirror: https://ipfs.io/ipns/QmYTEwv2GjQhtdN9bDfpLfQrVD7YLb1Sbh8igX8cEe9hHF/

IPFS git mirror:

git clone https://ipfs.io/ipns/Qmed4r8yrBP162WK1ybd1DJWhLUi4t6mGuBoB9fLtjxR7u nvidia-patch

Requirements

x86_64 system architecture
GNU/Linux operating system
nvenc-compatible gpu (https://developer.nvidia.com/video-encode-decode-gpu-support-matrix#Encoder)
Nvidia driver. Patch available for versions in version table below.

Version Table

Version	NVENC patch	NVFBC patch	Driver link
375.39	YES	NO	Driver link
390.77	YES	NO	Driver link
390.87	YES	NO	Driver link
396.24	YES	NO	Driver link
396.26	YES	NO	Driver link
396.37	YES	NO	Driver link
396.54	YES	NO	Driver link
410.48	YES	NO
410.57	YES	NO	Driver link
410.73	YES	NO	Driver link
410.78	YES	NO	Driver link
410.79	YES	NO	Driver link
410.93	YES	NO	Driver link
410.104	YES	NO	Driver link
415.18	YES	NO	Driver link
415.25	YES	NO	Driver link
415.27	YES	NO	Driver link
418.30	YES	NO	Driver link
418.43	YES	NO	Driver link
418.56	YES	NO	Driver link
418.67	YES	NO	Driver link
418.74	YES	NO	Driver link
418.87.00	YES	NO	Driver link
418.87.01	YES	NO	Driver link
418.88	YES	NO	Driver link
418.113	YES	NO	Driver link
430.09	YES	NO	Driver link
430.14	YES	NO	Driver link
430.26	YES	NO	Driver link
430.34	YES	NO	Driver link
430.40	YES	NO	Driver link
430.50	YES	NO	Driver link
430.64	YES	NO	Driver link
435.17	YES	NO	Driver link
435.21	YES	NO	Driver link
435.27.08	YES	YES
440.26	YES	YES	Driver link
440.31	YES	YES	Driver link
440.33.01	YES	YES	Driver link
440.36	YES	YES	Driver link
440.43.01	YES	YES
440.44	YES	YES	Driver link
440.48.02	YES	YES
440.58.01	YES	YES
440.58.02	YES	YES
440.59	YES	YES	Driver link
440.64	YES	YES	Driver link
440.64.00	YES	YES	Driver link
440.66.02	YES	YES
440.66.03	YES	YES
440.66.04	YES	YES
440.66.08	YES	YES
440.66.09	YES	YES
440.66.11	YES	YES
440.66.12	YES	YES
440.66.14	YES	YES
440.66.15	YES	YES
440.66.17	YES	YES
440.82	YES	YES	Driver link
440.95.01	YES	YES	Driver link
440.100	YES	YES	Driver link
440.118.02	YES	YES	Driver link
450.36.06	YES	YES	Driver link
450.51	YES	YES	Driver link
450.51.05	YES	YES	Driver link
450.51.06	YES	YES	Driver link
450.56.01	YES	YES
450.56.02	YES	YES
450.56.06	YES	YES
450.56.11	YES	YES
450.57	YES	YES	Driver link
450.66	YES	YES	Driver link
450.80.02	YES	YES	Driver link
450.102.04	YES	NO	Driver link
455.22.04	YES	NO
455.23.04	YES	YES	Driver link
455.23.05	YES	YES
455.26.01	YES	YES
455.26.02	YES	YES
455.28	YES	YES	Driver link
455.32.00	YES	YES
455.38	YES	YES	Driver link
455.45.01	YES	YES	Driver link
455.46.01	YES	YES
455.46.02	YES	YES
455.46.04	YES	YES
455.50.02	YES	YES
455.50.03	NO	YES
455.50.04	YES	YES
455.50.05	YES	YES
455.50.07	YES	YES
455.50.10	YES	YES
460.27.04	YES	YES	Driver link
460.32.03	YES	YES	Driver link
460.39	YES	YES	Driver link
460.56	YES	YES	Driver link
460.67	YES	YES	Driver link
465.19.01	YES	YES	Driver link

Synopsis

# bash ./patch.sh -h

SYNOPSIS
       patch.sh [-s] [-r|-h|-c VERSION|-l]

DESCRIPTION
       The patch for Nvidia drivers to remove NVENC session limit

       -s             Silent mode (No output)
       -r             Rollback to original (Restore lib from backup)
       -h             Print this help message
       -c VERSION     Check if version VERSION supported by this patch.
                      Returns true exit code (0) if version is supported.
       -l             List supported driver versions
       -d VERSION     Use VERSION driver version when looking for libraries
                      instead of using nvidia-smi to detect it.

# bash ./patch-fbc.sh -h

SYNOPSIS
       patch-fbc.sh [-s] [-r|-h|-c VERSION|-l]

DESCRIPTION
       The patch for Nvidia drivers to allow FBC on consumer devices

       -s             Silent mode (No output)
       -r             Rollback to original (Restore lib from backup)
       -h             Print this help message
       -c VERSION     Check if version VERSION supported by this patch.
                      Returns true exit code (0) if version is supported.
       -l             List supported driver versions
       -d VERSION     Use VERSION driver version when looking for libraries
                      instead of using nvidia-smi to detect it.

Step-by-Step guide

Examples are provided for driver version 430.50. All commands are executed as root.

Download and install driver

Skip this step if you already have installed driver with version supported by this patch (from distro packages, for example).

Make sure you have kernel headers and compiler installed before running Nvidia driver installer. Kernel headers and compiler are required to build nvidia kernel module. Recommended way to do this is to install dkms package, if it is available in your distro. This way dkms package will pull all required dependencies to allow building kernel modules and kernel module builds will be automated in a reliable fashion.

mkdir /opt/nvidia && cd /opt/nvidia
wget https://international.download.nvidia.com/XFree86/Linux-x86_64/430.50/NVIDIA-Linux-x86_64-430.50.run
chmod +x ./NVIDIA-Linux-x86_64-430.50.run
./NVIDIA-Linux-x86_64-430.50.run

Check driver

nvidia-smi

Output should show no errors and details about your driver and GPU.

Patch driver

This patch performs backup of original file prior to making changes.

bash ./patch.sh

You're all set!

Rollback

If something got broken you may restore patched driver from backup:

bash ./patch.sh -r

Docker support

It is possible to use this patch with nvidia-docker containers, even if host machine hasn't patched drivers. See Dockerfile for example.

Essentially all you need to do during build is:

COPY the patch.sh and docker-entrypoint.sh files into your container.
Make sure docker-entrypoint.sh is invoked on container start.

docker-entrypoint.sh script does on-the-fly patching by means of manipulating dynamic linker to workaround read-only mount of Nvidia runtime. Finally it passes original docker command to shell, like if entrypoint was not restricted by ENTRYPOINT directive. So docker run --runtime=nvidia -it mycontainer echo 123 will print 123. Also it can be just invoked from your entrypoint script, if you have any.

Benchmarks

Plex Media Server: nVidia Hardware Transcoding Calculator for Plex Estimates - useful benchmark of achieved simultaneous transcodes with various stream quality and hardware with patched drivers.