Hi @maxicor88 - Great to hear that your Joulescope is working. That is very strange regarding VMware. I can certainly understand it capturing your Joulescope for the VM, but (like you) I would think that it should work when assigned to the host computer.
Yes, you do need to add the udev rule for Linux. We have instructions for pyjoulescope, but we may not have done a great job making it clear for the Joulescope UI.
Where were you looking for the install instructions? Here? I see that this does not mention udev rules.