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64 lines
2.7 KiB
Markdown
64 lines
2.7 KiB
Markdown
# nvidia-patch
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This patch removes restriction on maximum number of simultaneous NVENC video encoding sessions imposed by Nvidia to consumer-grade GPUs.
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Requirements:
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- x86\_64 system architecture
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- ubuntu (< 18.04 for 375.39 nvidia driver or kernel < 4.15). Also known to work on Debian and CentOS, but not tested widely.
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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:
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- [375.39](https://download.nvidia.com/XFree86/Linux-x86_64/375.39/NVIDIA-Linux-x86_64-375.39.run)
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- [390.87](https://download.nvidia.com/XFree86/Linux-x86_64/390.87/NVIDIA-Linux-x86_64-390.87.run)
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- [396.24](https://download.nvidia.com/XFree86/Linux-x86_64/396.24/NVIDIA-Linux-x86_64-396.24.run)
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- [396.26](https://uk.download.nvidia.com/tesla/396.26/NVIDIA-Linux-x86_64-396.26.run)
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- [396.37](https://uk.download.nvidia.com/tesla/396.37/NVIDIA-Linux-x86_64-396.37.run)
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- [396.54](https://download.nvidia.com/XFree86/Linux-x86_64/396.54/NVIDIA-Linux-x86_64-396.54.run)
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- 410.48
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- [410.57](https://download.nvidia.com/XFree86/Linux-x86_64/410.57/NVIDIA-Linux-x86_64-410.57.run)
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- [410.73](https://download.nvidia.com/XFree86/Linux-x86_64/410.73/NVIDIA-Linux-x86_64-410.73.run)
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- [410.78](https://download.nvidia.com/XFree86/Linux-x86_64/410.78/NVIDIA-Linux-x86_64-410.78.run)
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- [410.79](https://uk.download.nvidia.com/tesla/410.79/NVIDIA-Linux-x86_64-410.79.run)
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- [415.18](https://download.nvidia.com/XFree86/Linux-x86_64/415.18/NVIDIA-Linux-x86_64-415.18.run)
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- [415.25](https://download.nvidia.com/XFree86/Linux-x86_64/415.25/NVIDIA-Linux-x86_64-415.25.run)
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Tested on Ubuntu 18.04 LTS (GNU/Linux 4.15.0-23-generic x86\_64)
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## step-by-step :
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### Download driver
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[https://download.nvidia.com/XFree86/Linux-x86\_64/410.78/NVIDIA-Linux-x86\_64-410.78.run](https://download.nvidia.com/XFree86/Linux-x86_64/410.78/NVIDIA-Linux-x86_64-410.78.run)
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### Install driver (410.78)
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```bash
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mkdir /opt/nvidia && cd /opt/nvidia
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wget https://download.nvidia.com/XFree86/Linux-x86_64/410.78/NVIDIA-Linux-x86_64-410.78.run
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chmod +x ./NVIDIA-Linux-x86_64-410.78.run
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./NVIDIA-Linux-x86_64-410.78.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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### 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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### 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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### 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`, see option `-surfaces` ("Number of concurrent surfaces") and try value near `-surfaces 8`.
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