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8 changes: 7 additions & 1 deletion README.md
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Expand Up @@ -46,13 +46,19 @@ sudo apt-get install nvidia-docker2
sudo pkill -SIGHUP dockerd
```
3. Setup environment variables for NVIDIA binaries and libraries. If these variables are not set correct, pointcloud from lidar wont be visible

```bash
# find out the version of nvidia drivers installed
glxinfo | grep "OpenGL core profile version"
# output of this should be something similar to
# OpenGL core profile version string: 4.5.0 NVIDIA 384.130
# In this case, the driver version is 384.130

```
- if glxinfo is not found
```bash
sudo apt-get install mesa-utils
```
```bash
# search for the bin, lib and lib32 directories
dpkg -L nvidia-384 # change nvidia-384 to the major number of installed version
# based on the output, relevant directories on my machine are /usr/lib/nvidia-384/bin, /usr/lib/nvidia-384, and /usr/lib32/nvidia-384
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