This has less to do with xmonad than with your display manager session; an xmonad session will be xmonad itself, not all the stuff that comes with Gnome. And simply using a Gnome compatibility config won't cause Ubuntu login to start a Gnome session with xmonad for you.

This is complicated by Gnome 3 being incompatible with alternative window managers; most of its functionality is in gnome-shell, including the window manager component, and you can't replace the window manager without ditching gnome-shell entirely. The Gnome developers have no intention of changing this. You may be able to run gnome-panel standalone without it trying to start gnome-shell, but you have to do that separately. It's easier to do this with more component-oriented desktops like MATE and XFCE.

On Sat, Oct 20, 2018 at 12:31 PM Steve Quezadas <steve@thestever.net> wrote:

Hello, I got a new computer and install ubuntu to 18.04 (Bionic Beaver).
When i login through xmonad, my ubuntu desktop environment disappears,
it's all black. No wallpaper, no tray, no nothing. My xmonad.hs file is
as follows:
> import XMonad
> import XMonad.Config.Desktop
>
> baseConfig = desktopConfig
>
> main = xmonad baseConfig
> { modMask = mod4Mask }

This config file worked with my previous version of ubuntu and now just
loads a black screen. I can get into my terminal window by doing a
mod-shift-enter and that's how I get around, but I would like to get
back into the ubuntu tray (mod-p, for instance).

I tried an alternative configuration on one of the wiki's to no avail.
> import XMonad import
> XMonad.Config.Gnome
>
> main = xmonad gnomeConfig

Tried googling, checking the wiki's and going through the documentation
to no avail.

I am thinking maybe there's some error on the logs or something that I
can check. or is there something that I'm doing that is obviously wrong?

- Steve
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