xdm doesn't try to start (Gentoo issue)
> I have two hardware-identical laptops exhibiting different behavior
> WRT xdm. xdm doesn't try to start automatically on one of the laptops
> but does on the other. On the one that does not start xdm, I get this
> on startup:
> # rc-update -s | grep xdm
> xdm | default
> # /etc/init.d/xdm status
> * status: stopped
> # /etc/init.d/xdm start
> and xdm/lightdm starts just fine. What could be the problem? It
> works perfectly on the other laptop.
Is there any error in /var/log/Xorg.0.log, before you start xdm manually?
Watch during boot which services are being started after xdm, maybe xdm
depends on something that is not available yet. You could add the needed
service to the depend() function in /etc/init.d/xdm in this case.