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Configuration

Ubuntu 18.04
"KDE Plasma5 Workspaces" as desktop environment in Active directory
SDDM login screen

Problem

Ubuntu login screen default settings.

AD logins works and is fine. Is it possible to modify SDDM login screen to show empty username & pass or last AD username. By default it`s shows local username and not empty login or last AD user. User must click on Different User button every time to log in. Any idea how to modify greeter. Did try to google it with no success. Did try to install various themes it does not help.

EDIT

Maybe there is other greeter more flexible so it can display empty fields? I did try lightdm with no sucess. Sure I`m missing something.

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2 Answers 2

Reset to default
0

Assume your UIDs start at 10000 (not counting system users). The range from 10000 on is typically used for non-local users. Then the following in /etc/sddm.conf should help:

[Users]
MaximumUid=9999

Note that UIDs of local users typically start at 1000, so if those also shall be hidden, then use MaximumUid=999.

You can also add

RememberLastUser=false
RememberLastSession=false

to this section to get rid of some more artifacts.

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6
  • Unfortunately these settings have no effect.
    – mr.littlespam
    Aug 12, 2019 at 8:44
  • Is it still showing users with UID 10000 or greater?
    – Lasse Kliemann
    Aug 12, 2019 at 12:02
  • Actually this config works only not MaximumUid, but MinimumUid!!!
    – mr.littlespam
    Aug 13, 2019 at 7:11
  • Then I guess the relevant UIDs are below 10000 on your system. Did you check?
    – Lasse Kliemann
    Aug 13, 2019 at 7:21
  • I think the setting applies to specified user UID (from AD ) and they have UID way over 10000. So correct setting will be MinimumUid, but thank`s a lot Your suggestion helped.
    – mr.littlespam
    Aug 13, 2019 at 8:32
1

There seems to be a long-standing Fedora bug (from 2015 up until Fedora 30 this May) with a similar question:

https://bugzilla.redhat.com/show_bug.cgi?id=1238889

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