Requirements:

• ubuntu (< 18.04 for 375.39 nvidia driver or kernel < 4.15)
• nvenc-compatible gpu (https://developer.nvidia.com/video-encode-decode-gpu-support-matrix#Encoder)
• nvidia driver (patch availible for 375.39, 396.24, 396.26, 396.37)

Tested on Ubuntu 18.04 LTS (GNU/Linux 4.15.0-23-generic x86_64)

http://us.download.nvidia.com/XFree86/Linux-x86_64/375.39/NVIDIA-Linux-x86_64-375.39.run http://us.download.nvidia.com/XFree86/Linux-x86_64/396.24/NVIDIA-Linux-x86_64-396.24.run

mkdir /opt/nvidia && cd /opt/nvidia
wget http://us.download.nvidia.com/XFree86/Linux-x86_64/396.24/NVIDIA-Linux-x86_64-396.24.run
chmod +x ./NVIDIA-Linux-x86_64-396.24.run
./NVIDIA-Linux-x86_64-396.24.run

nvidia-smi

bash ./patch.sh

bash ./patch.sh -s

bash ./patch.sh -r

https://habr.com/post/262563/

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.