On Vi, 10 oct 14, 00:10:18, Andrei POPESCU wrote: > On Jo, 09 oct 14, 17:55:18, Andrei POPESCU wrote: > > > > I have to run 'dpkg-reconfigure lightdm' to have lightdm's postinst > > recreate the display-manager.service symlink, which is not obvious. > > Actually that wasn't enough to re-enable lightdm, in the end I had to > resorte to 'dpkg --purge --force-depends' and then install again.
Given also the recent lxdm bug I've been giving this issue more thought and here's what I came up with: 1. Keep the current ExecStartPre= hack until systemd has better support for this use case[*]. 2a. Each display manager must add a WantedBy=graphical.target 2b. Each display manager must add a Conflicts=[all other DMs] If I'm not mistaken this will ensure that at least one display manager is started (because of the WantedBy=), and only one can run at any given time (because of the Conflicts=). Which one would actually start would still be controlled via /etc/X11/default-display-manager, same as before. systemctl/update-rc.d enable/disable should then Just Work(tm). If you think the above makes sense I can start testing it with all display managers currently handling the display-manager.service symlink. [*] See #770633 for a possible implementation of this use case Kind regards, Andrei -- http://wiki.debian.org/FAQsFromDebianUser Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic http://nuvreauspam.ro/gpg-transition.txt
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