Public bug reported:
After the fix for bug 1644237 lands, you can start using unity8 as a
guest session.
Normally in the guest session, a dialog appears when you log in warning
you that it is a temporary session and not to keep important data there.
But this dialog does not appear under unity8.
== Analysis ==
The dialog is normally launched by lightdm. It installs an autostart
file for the guest user [1] that launches a script [2] which runs zenity
to create a gtk3 dialog.
Under unity8, we have two problems:
A) We don't run xdg autostart apps. (this is done by gnome-session normally)
B) We don't allow zenity to connect to Mir unless it's done through Ubuntu App
Launch with an associated app desktop file (which can't specify NoDisplay or
UAL won't launch it, but maybe we could hide it in launcher with something like
OnlyShowIn=Nothing?)
[1]
/usr/share/lightdm/guest-session/skel/.config/autostart/guest-session-startup.desktop
[2] /usr/lib/lightdm/guest-session-auto.sh
== Options ==
We could fix A & B from above. Not sure if we want to though. Or we
could insert logic in unity8 to show the dialog itself. That might be
best integration? But it's kind of a bummer that we have to edit the
shell itself for anything like this we might want to do.
** Affects: unity8 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1673097
Title:
Guest session warning dialog doesn't appear
Status in unity8 package in Ubuntu:
New
Bug description:
After the fix for bug 1644237 lands, you can start using unity8 as a
guest session.
Normally in the guest session, a dialog appears when you log in
warning you that it is a temporary session and not to keep important
data there.
But this dialog does not appear under unity8.
== Analysis ==
The dialog is normally launched by lightdm. It installs an autostart
file for the guest user [1] that launches a script [2] which runs
zenity to create a gtk3 dialog.
Under unity8, we have two problems:
A) We don't run xdg autostart apps. (this is done by gnome-session normally)
B) We don't allow zenity to connect to Mir unless it's done through Ubuntu
App Launch with an associated app desktop file (which can't specify NoDisplay
or UAL won't launch it, but maybe we could hide it in launcher with something
like OnlyShowIn=Nothing?)
[1]
/usr/share/lightdm/guest-session/skel/.config/autostart/guest-session-startup.desktop
[2] /usr/lib/lightdm/guest-session-auto.sh
== Options ==
We could fix A & B from above. Not sure if we want to though. Or we
could insert logic in unity8 to show the dialog itself. That might be
best integration? But it's kind of a bummer that we have to edit the
shell itself for anything like this we might want to do.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1673097/+subscriptions
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