KDM features
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Christoph Pleger
Jul 12, 2016, 11:27:30 AM7/12/16
to sddm-devel
Hello,
As I read that sddm is the successor of kdm:
1. kdm saved the pre-selected session type of every user in ~/.dmrc and used that type for later sessions, as long as the user did not choose something else.
2. In kdm, I could edit kdmrc to disable root logins.
3. In kdm, I could edit kdmrc so that root authentication was required to reboot or shutdown the machine from the greeter ot from a kde session.
4. With kdm, after setting appropriate policykit values, when ending a user session by clicking 'reboot' or 'shutdown', a small authentication window for entering the root password was shown, independent from the session type.
I could not find any of these features in sddm. Did I miss something? Or are they really all absent? If absent, is there a chance that they will implemented?
Regards
Christoph
As I read that sddm is the successor of kdm:
1. kdm saved the pre-selected session type of every user in ~/.dmrc and used that type for later sessions, as long as the user did not choose something else.
2. In kdm, I could edit kdmrc to disable root logins.
3. In kdm, I could edit kdmrc so that root authentication was required to reboot or shutdown the machine from the greeter ot from a kde session.
4. With kdm, after setting appropriate policykit values, when ending a user session by clicking 'reboot' or 'shutdown', a small authentication window for entering the root password was shown, independent from the session type.
I could not find any of these features in sddm. Did I miss something? Or are they really all absent? If absent, is there a chance that they will implemented?
Regards
Christoph
Pier Luigi Fiorini
Aug 15, 2016, 2:52:19 PM8/15/16
to Christoph Pleger, sddm-devel
2016-07-12 17:27 GMT+02:00 Christoph Pleger <chri...@plmail.de>:
Hello,
As I read that sddm is the successor of kdm:
1. kdm saved the pre-selected session type of every user in ~/.dmrc and used that type for later sessions, as long as the user did not choose something else.
sddm saves the last session to /var/lib/sddm/state.conf
Such behavior can be disabled from /etc/sddm.conf
2. In kdm, I could edit kdmrc to disable root logins.
Root logins are disabled by default and /etc/sddm.conf has a MinimumUid=1000 (or whatever is the minimum unprivileged user uid) to make sure of that.
3. In kdm, I could edit kdmrc so that root authentication was required to reboot or shutdown the machine from the greeter ot from a kde session.
With sddm this depends on logind (or alternative backends in case the distro doesn't support logind).
logind uses policykit if i recall.
4. With kdm, after setting appropriate policykit values, when ending a user session by clicking 'reboot' or 'shutdown', a small authentication window for entering the root password was shown, independent from the session type.
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