Le 22/06/2017 à 20:22, Ken VanDine a écrit :
Ubuntu Desktop will be switching from LightDM to GDM for 17.10. I'm
working on handling that transition and trying to sort out the best
solution for upgraders that won't negatively impact other flavors.
The initial plan was to drop the current prompt when configuring the
package to select which DM to use by default and just switch current
lightdm users to gdm3. This would only affect users that have both
lightdm and gdm3 installed, but I can see cases where users may have
that today. For example an Ubuntu MATE user that has also installed
gnome-shell, would have both lightdm and gdm3 installed. Most of the
flavors are using lightdm and as far as I know aren't planning to
switch to GDM at this time.
We could use a maintainer script to switch the default to gdm3 on
upgrade only if ubuntu-session is installed, this would further reduce
the impact.
My heuristic would be for avoiding the prompt:
- ubuntu-session installed
- that session is set as current session for at least one user on the
machine.
Didier
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