This bug was fixed in the package ubuntu-settings - 20.04.6
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ubuntu-settings (20.04.6) focal; urgency=medium
* debian/ubuntu-settings.gsettings-override:
- use the same power options between session and greeter. (LP: #1902898)
-- Didier Roche <didro...@ubuntu.com> Fri, 30 Apr 2021 09:01:06 +0200
** Changed in: ubuntu-settings (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1902898
Title:
power-button action inconsistent between user session and greeter
Status in ubuntu-settings package in Ubuntu:
Fix Released
Status in ubuntu-settings source package in Focal:
Fix Released
Status in ubuntu-settings source package in Hirsute:
Fix Released
Bug description:
[Impact]
When a user is logged in to the Ubuntu desktop, a power button event will
cause the user to be prompted to choose if they'd like to proceed with a
shutdown. However, if the system is sitting at a greeter screen, a power button
event will instead attempt a suspend w/o prompting. This is due to a different
set of defaults for the greeter and the user.
This is a fix for this, aligning all power actions between the greeter
behaviour and the user session one on the user session.
[Test Plan]
1. Install new package and reboot
2. On the greeter screen (gdm), press the physical power button of your
machine.
3. You should be now prompted about what to do, like shutdown. You can
dismiss it.
4. Clicking on the physical suspend button should suspend the machine
immediatly.
[Where problems could occur]
We change the scope of when we applied those settings: we were only applying
them to the GNOME session ran by the user, and it will now be applied as
default to the GNOME session ran by gdm.
Impacts is thus limited to the greeter screen.
Diff is available on this commit:
https://git.launchpad.net/~ubuntu-desktop/ubuntu/+source/ubuntu-settings/commit/?h=focal&id=ca2f9aa9b03862ff044b64d7ef9506ca87e3dd89
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Original report content:
For a logged-in desktop user, they
see:
$ gsettings get org.gnome.settings-daemon.plugins.power
power-button-action 'interactive'
But the gdm user sees:
$ sudo machinectl shell gdm@ /bin/bash
Connected to the local host. Press ^] three times within 1s to exit session.
gdm:~$ gsettings get org.gnome.settings-daemon.plugins.power
power-button-action
'suspend'
Changing the gdm user's setting to "interactive" using gsettings
causes the greeter to begin prompting, consistent with the logged in
user experience.
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https://bugs.launchpad.net/ubuntu/+source/ubuntu-settings/+bug/1902898/+subscriptions
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