How to prevent ubuntu update from breaking graphics

KD0OHR

I have an issue where if I make the mistake of sudo apt upgrade it breaks the graphics drivers and I get stuck with software gles. Is there some way to stop that? maybe a

1. dpkg-divert

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command or something like this .deb file https://github.com/avafinger/nanopi-m4-ubuntu-base-minimal/releases/tag/v1.2.1

KD0OHR

I used apt-mark and it seemed to survive an apt upgrade

1. sudo apt-mark hold libgl1 libglx0 libgles2 libegl1 libglvnd0

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I will update if I find a way to have opencl without breaking webgl

KD0OHR

Looks like it was already in there, clinfo just needs where to find it:

1. sudo mkdir /etc/OpenCL
   
2. sudo mkdir /etc/OpenCL/vendors
   
3. echo "/usr/lib/aarch64-linux-gnu/libOpenCL.so" | sudo tee /etc/OpenCL/vendors/armocl.icd
   

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