xfdesktop crashes sometimes when I login or sometimes after using it there are not error logs I am using Debian 9
No error logs in journalctl -xe or .xsession-errors? Then try to launch xfdekstop from terminal: xfdesktop -Q && xfdesktop
I was testing xfce in some x86 computers with Debian 9 and the problem remain.
running xfdesktop from terminal I got the message: Gtk-Message: 20:40:42.968: Failed to load module "gail" ** (xfdesktop:1868): WARNING **: 20:40:42.974: (bridge.c:993):atk_bridge_adaptor_init: runtime check failed: (root)
I tried # apt-get install --reinstall xfce4 and seems solved the problem
and I also reinstalled lightdm.
libgail is related to a11y, no idea how that would crash xfdesktop. Anyway, I'm closing this bug, reopen if the problem appears again.