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I've just upgraded Ubuntu 18.04 to 20.04. Unfortunately, some things such as OBS component has been broken.

Here are some of the log captured in /var/log/syslog

Aug 23 10:13:38 pc com.obsproject.Studio.desktop[5817]: [h264_nvenc @ 0x55a8e843d200] Driver does not support the required nvenc API version. Required: 9.1 Found: 8.1

Aug 23 10:13:38 pc com.obsproject.Studio.desktop[5817]: [h264_nvenc @ 0x55a8e843d200] The minimum required Nvidia driver for nvenc is 435.21 or newer


Aug 23 10:13:38 pc com.obsproject.Studio.desktop[5817]: warning: [NVENC encoder: 'simple_h264_recording'] Failed to open NVENC codec: Function not implemented

I've updated the system with sudo apt update -y && sudo apt upgrade -y but did not fix the problem.

What should I do to fix this?

1 Answers1

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Open the terminal and type:

sudo apt update
sudo apt-get remove '^nvidia'
sudo apt autoremove
sudo apt install nvidia-driver-435 # or alternatively nvidia-driver-440
sudo reboot

If after these coimmands you still get a Failed to open NVENC codec: Function not implemented error message see How to install / compile NVENC in Ubuntu?.

karel
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