Bug#813410: lock screen is not working when logged into gnome from sddm

Pirate Praveen praveen at onenetbeyond.org
Tue Feb 2 13:00:40 UTC 2016

On Tuesday 02 February 2016 04:49 PM, Tim wrote:
> On 02/02/16 04:15, Pirate Praveen wrote:
>> package: sddm, gdm3, gnome-session
>> severity: important
>> Now it seems gnome session can lock screen only if logged in from gdm3
>> (isn't there a standard for display managers? is gnome breaking the
>> standard of sddm not implementing a new standard? can't changes be
>> better coordinated among DEs, can't we use freedesktop.org?). It makes
>> the whole system insecure as laptops when left unattended could be
>> misused by anyone without auto lock.
> gnome-shell and gdm3 are quite tightly coupled, however in the case you don't want to use gdm, you should be able to use gnome-screensaver or
> xscreensaver for screen locking

I used xlock as a workaround, but gnome-shell should fallback to using
gnome-screensaver if gdm3 is not available. Keeping the machines
(laptops) unlocked is not a good default, especially when suspended.

This is basic functionality we are talking about and not some exotic
nice to have feature.

>> Same issue for switch user.
> There is no standard for user switching, gdm, lightdm and probably sddm all have their own interfaces for user switching.

It would be good to have a standard and I think debian gdm maintainers
are the right people to initiate - being in a position to support
multiple DEs, such a standard.

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