Bug#251144: Removing GDM doesn't always change /etc/X11/default-display-manager

[Christopher Martin]

Package: gdm
Version: 2.4.4.7-3
Severity: normal

If two display managers are installed (say, gdm and kdm) and gdm is 
selected as the default, uninstalling gdm should 
change /etc/X11/default-display-manager to kdm, since it is the only one 
left (the other display managers work in this manager when they are 
removed). However, gdm does not, leaving /etc/X11/default-display-manager 
set to the now non-existent gdm.

When 3 or more display managers are installed, removing gdm prompts the 
user to select one of the two remaining; this setting is applied as it 
should be. Thus the problem occurs only when 2 display managers are 
installed, gdm is the default, and gdm is removed.

Thanks,
Christopher Martin