Comment 36 for bug 2028165

Ginés: I'm guessing you have leftover packages from when I had the 390 package for noble in the nvidiaexp PPA. You probably need to remove at least libnvidia-compute-390 and then try again. This will help you see what packages you still have installed:
dpkg -l | grep 390 | grep ii

And I should have renamed the source package from nvidiaexp to nvidiatest, but this thought always seems to occur to me about 2 minutes after I upload the package to the PPA. *Shrug*