The proposal to merge lp:~ubuntu-multiseat/lightdm/automatic-multiseat into
lp:lightdm has been updated.
Description changed to:
This branch implements automatic multiseat support in LightDM, as reported in
bug #1190581. Basically, it should implement steps 1 & 2 of "Complete porting"
section in systemd documentation [1]. It's largely based on GDM implementation
of the feature.
There are some pieces missing in revision 2041, but support for adding new
seats is finished. I'm proposing this merge right now, so you can review it and
suggest improvements.
At the moment, I can list the following issues:
1. It doesn't watch PropertyChanged events on seats.
2. In order to keep login1.{h,c} simple (namely, avoid #include'ing seat.h and
display-manager.h), callback functions for login1 SeatNew()/SeatRemoved()
signals are implemented directly in lightdm.c. Is this OK, or should I move
these callback functions elsewhere?
3. [FIXED] It still lacks a proper implementation of a callback function for
SeatRemoved() signal. Maybe a display_manager_remove_seat() function
(counterpart for display_manager_add_seat() one) is required.
4. [FIXED] When loading initial seat list from logind (by calling
login1_sync_seats()), we always get at least one seat (namely, seat0). It may
conflict with LightDM option "start-default-seat", ending up with two seat0
seats registered in LightDM (one triggered by start-default-seat, and another
one triggered by login1_sync_seats()). Which is the preferred way to prevent
this conflict?
5. [FIXED] Should we set property "seat-name" for automatically added seats?
Maybe we can even implement support for special sections in lightdm.conf for
these ones, which are loaded whenever a seat matching this name is added.
Example:
[AutoSeat:Foo]
autologin-user=user1
sets autologin user whenever a seat "seatFoo" is added.
6. Test scripts are missing (help needed).
7. [NEW] [FIXED?] When adding a new seat from logind with property
CanMultiSession=no, set option allow-user-switching to false by default.
[1] http://www.freedesktop.org/wiki/Software/systemd/writing-display-managers/
For more details, see:
https://code.launchpad.net/~ubuntu-multiseat/lightdm/automatic-multiseat/+merge/229682
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