"Flashback" is someone forking and maintaining the old "fallback" package, which was discontinued upstream after Gnome 3.6. It's actually Gnome 2 underneath; Gnome 3 has never supported alternative window managers directly, "gnome-fallback" instead forced a Gnome 3-like theme onto Gnome 2.

On Sat, Oct 20, 2018 at 2:35 PM Adam Sjøgren <asjo@koldfront.dk> wrote:
Steve writes:

> 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.

What happens if you choose the "GNOME Flashback (Xmonad)" session when
logging in, instead of the "XMonad" session?

The xmonad package in Ubuntu includes two xsessions, one with xmonad
only and one with "GNOME Flashback" (which I guess means fallback) and
xmonad:

 · https://packages.ubuntu.com/bionic/amd64/xmonad/filelist


  Best regards,

    Adam

--
 "Och när jag blundar hörs din röst                           Adam Sjøgren
  Jag kan inte se ditt ansikte                           asjo@koldfront.dk
  Det var det jag glömde först"

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