I am not able to access the camera using the realsense viewer for D415 camera.

[KRadh]

I have a Intel Realsense Camera D415 and it works fine in Windows. But when I try to install the camera in Ubuntu 16.04 LTS I am not able to access the camera. It shows the following error that : "PKCS#7 signature not signed with a trusted key" and I tried running the patch file provided in scripts "patch-release-ubuntu-lts.sh" and it fails saying : "ERROR: could not insert 'videodev': Required key not available. " SO it would be great if you could help me on this.

[MartyG · Accepted solution]

The problem with signing keys has occurred before with Librealsense and Ubuntu.

https://github.com/IntelRealSense/librealsense/issues/1112

A user suggested in this discussion that you can download the SDK from source instead.