Problems with libGL

Hi,

After a lot of tinkering, I managed to partially resolve my issue by installing the Nvidea drivers. In my case I did:

sudo apt install xserver-xorg-video-nvidia-390
sudo apt install nvidia-340

The libGL errors disappeared. However, I see that my visualizer is still empty. It appears to be the issue seen in Qt viewer: scene tree empty

Cheers,
Johan