You’ll need to properly enable KMS for nvidia, then probably the session option would show up.
What happens then may depend on hardware, optimus devices will fallback to intel in a wayland session, nvidia only machines you may log in to crappy performance or you may log into llvmpipe crappy performance or you may not log in at all…
then rebooted, this resulted in desktop failing to load and me staying on the background color of the ubuntu boot screen, although I could access TTY and reverse it.
either that’s not what I was to do or my hardware/software combination is entirely incompatible with wayland.
That’s what you have to do for Nvidia - I’ve disabled it for myself at the moment, without accel working in XWayland it’s too annoying. (I use it exclusively on Intel machines though)
If you want to try it you really want to upgrade to 19.10 first, the latest nvidia driver - nvidia-430 driver (not available in 19.04) and latest gnome-shell are really needed for the best experience.
EDIT, Yes I meant to say without using a PPA. If you already on 430 then I would have expected it to work a bit better.
@bryanquigley the new topic seemed to be locked, I could not answer there. thanks for the tip anyhow, I was thinking of trying 19.10 anyhow.
Note, though, that contrary to what you claim, 430 (and even 435! (though 435 has dependency issues)) are available under ubuntu 19.04 with the nvidia PPA. (ppa:graphics-drivers/ppa) and I’m using the 430 on ubuntu 19.04 this very moment.
perhaps you mean to say that 430 is available on 19.10 without a PPA, if yes, I’m curious to know whether anything is different about it or if the PPA simply repackages it?
EDIT: OK so I guess I can’t hope for much better on 19.10 then? I mean it’s not like it’s the lower version gnome-shell which is preventing me from having any desktop at all under wayland is it?