Using Ubuntu 20.04 on a XPS 15 9560, I installed the system76-power package to disable the GPU at will as I don't need it 90% of the time. It worked flawlessly for a few months but now I have a conflict between it and a nvidia-prime package (probably coming from the nvidia-driver-440/focal-updates 450.66-0ubuntu0.20.04.1).

$ sudo apt upgrade

Reading package lists... Done

Building dependency tree       

Reading state information... Done

Calculating upgrade... Done

Some packages could not be installed. This may mean that you have

requested an impossible situation or if you are using the unstable

distribution that some required packages have not yet been created

or been moved out of Incoming.

The following information may help to resolve the situation:



The following packages have unmet dependencies:

 system76-power : Conflicts: nvidia-prime

E: Broken packages

How do I fix this conflict?

I should mention I can't upgrade with apt as it's blocking the overall process (I could upgrade individual packages, but I'd prefer fixing the issue first).

I have no memory installing nvidia-prime but it might have been auto-installed by the driver utility.