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https://github.com/keylase/nvidia-patch.git
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README.md
54
README.md
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# nvidia-patch
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requirements:
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- Ubuntu 17.10
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- nvenc-compatible gpu
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- kernel (<4.10.0)- 4.4.0-101-generic
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- nvidia 378.13 driver
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# step-by-step :
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Requirements:
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- ubuntu (< 18.04 for 375.39 nvidia driver or kernel < 4.15)
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- nvenc-compatible gpu (https://developer.nvidia.com/video-encode-decode-gpu-support-matrix#Encoder)
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- nvidia driver (patch availible for 375.39 or 396.24)
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Download driver: https://yadi.sk/d/d87mf0y03WTbb5
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chmod +x ./NVIDIA-Linux-x86_64-378.13.run
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Tested on Ubuntu 18.04 LTS (GNU/Linux 4.15.0-23-generic x86_64)
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./NVIDIA-Linux-x86_64-378.13.run
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## step-by-step :
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# check driver:
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### Download driver
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http://us.download.nvidia.com/XFree86/Linux-x86_64/375.39/NVIDIA-Linux-x86_64-375.39.run
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http://us.download.nvidia.com/XFree86/Linux-x86_64/396.24/NVIDIA-Linux-x86_64-396.24.run
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### Install driver 396.24
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```bash
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mkdir /opt/nvidia && cd /opt/nvidia
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wget http://us.download.nvidia.com/XFree86/Linux-x86_64/396.24/NVIDIA-Linux-x86_64-396.24.run
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chmod +x ./NVIDIA-Linux-x86_64-375.39.run
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./NVIDIA-Linux-x86_64-396.24.run
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```
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### Check driver
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```bash
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nvidia-smi
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```
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mkdir ~/nvenc_backup
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### Patch libnvidia-encode.so (with backup)
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```bash
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bash ./patch.sh
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```
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cd ~/nvenc_backup
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### Silent patch libnvidia-encode.so
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```bash
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bash ./patch.sh -s
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```
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cp /usr/lib/x86_64-linux-gnu/libnvidia-encode.so.378.13 ~/nvenc_backup/
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wget https://raw.githubusercontent.com/keylase/nvidia-patch/master/patch.sh
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chmod +x patch.sh
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./patch.sh ~/nvenc_backup/libnvidia-encode.so.378.13 /usr/lib/x86_64-linux-gnu/libnvidia-encode.so.378.13
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reboot
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### Rollback libnvidia-encode.so (restore from backup)
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```bash
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bash ./patch.sh -r
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```
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## See also
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https://habr.com/post/262563/
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If you experience `CreateBitstreamBuffer failed: out of memory (10)`, then you have to lower buffers number used for every encoding session. If you are using `ffmpeg`, consider using this [patch](https://gist.github.com/Snawoot/70ae403716c698cb86ab015626d72bd4).
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86
patch.sh
Normal file → Executable file
86
patch.sh
Normal file → Executable file
@ -1,9 +1,81 @@
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#!/bin/bash
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input=$1
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output=$2
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if [ -z $1 ]; then
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echo "Require params - example: ./patch.sh <input file> <output file>"
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exit
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fi
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sed 's/\x85\xC0\x89\xC5\x75\x18/\x29\xC0\x89\xC5\x90\x90/g' $input > $output
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backup_path="/opt/nvidia/libnvidia-encode-backup"
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silent_flag=''
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rollback_flag=''
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print_usage() { printf '
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SYNOPSIS
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patch.sh [OPTION]...
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DESCRIPTION
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The patch for libnvidia-encode to increase encoder sessions
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-s Silent mode (No output)
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-r Rollback to original (Restore lib from backup)
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'
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}
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while getopts 'rs' flag; do
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case "${flag}" in
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r) rollback_flag='true' ;;
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s) silent_flag='true' ;;
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*) print_usage
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exit 1 ;;
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esac
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done
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if [[ $silent_flag ]]; then
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exec 1> /dev/null
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fi
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declare -A patch_list=(
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["375.39"]='s/\x85\xC0\x89\xC5\x75\x18/\x29\xC0\x89\xC5\x90\x90/g'
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["396.24"]='s/\x85\xC0\x89\xC5\x0F\x85\x96\x00\x00\x00/\x29\xC0\x89\xC5\x90\x90\x90\x90\x90\x90/g'
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# break nvenc.c:236,layout asm,step-mode,step,break *0x00007fff89f9ba45
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# libnvidia-encode.so @ 0x15a45; test->sub, jne->nop-nop-nop-nop-nop-nop
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)
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driver_version=$(/usr/bin/nvidia-smi --query-gpu=driver_version --format=csv,noheader,nounits)
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if [[ ! $? -eq 0 ]]; then
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echo 'Something went wrong. Check nvidia driver'
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exit 1;
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fi
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echo "Detected nvidia driver version: $driver_version"
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patch=${patch_list[$driver_version]}
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if [[ ! $patch ]]; then
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echo "Patch for this ($driver_version) nvidia driver not found." 1>&2
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echo "Available patches for: " 1>&2
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for drv in "${!patch_list[@]}"; do
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echo "$drv" 1>&2
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done
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exit 1;
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fi
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if [[ $rollback_flag ]]; then
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if [[ -f $backup_path/libnvidia-encode.so.$driver_version ]]; then
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cp $backup_path/libnvidia-encode.so.$driver_version \
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/usr/lib/x86_64-linux-gnu/libnvidia-encode.so.$driver_version
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echo "Restore from backup libnvidia-encode.so.$driver_version"
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else
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echo "Backup not found. Try to patch first."
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exit 1;
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fi
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else
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if [[ ! -f $backup_path/libnvidia-encode.so.$driver_version ]]; then
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echo "Attention! Backup not found. Copy current libnvidia-encode to backup."
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mkdir -p $backup_path
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cp /usr/lib/x86_64-linux-gnu/libnvidia-encode.so.$driver_version \
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$backup_path/libnvidia-encode.so.$driver_version
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fi
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sha1sum $backup_path/libnvidia-encode.so.$driver_version
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sed "$patch" $backup_path/libnvidia-encode.so.$driver_version > \
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/usr/lib/x86_64-linux-gnu/libnvidia-encode.so.$driver_version
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sha1sum /usr/lib/x86_64-linux-gnu/libnvidia-encode.so.$driver_version
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ldconfig
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echo "Patched!"
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fi
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