how can i fix login screen? I don't delete any package.

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  • Please update the question with the output of lsb_release -a.
    – Hasan
    Commented May 29, 2019 at 9:10

1 Answer 1


Wow! That is a very good question. Lets take a look at your configuration files. If you run this command...

find /etc/lightdm/ -print -type f -exec cat '{}' \; -exec echo \;

it will output all of the files that are used to configure the behavior of your login screen. Here's the output of mine:

donn@donnslaptop ~> find /etc/lightdm/ -print -type f -exec cat '{}' \; -exec echo \;
# User accounts configuration
# NOTE: If you have AccountsService installed on your system, then LightDM will
# use this instead and these settings will be ignored
# minimum-uid = Minimum UID required to be shown in greeter
# hidden-users = Users that are not shown to the user
# hidden-shells = Shells that indicate a user cannot login
hidden-users=nobody nobody4 noaccess
hidden-shells=/bin/false /usr/sbin/nologin


Perhaps some file got shuffled around and changed your theme.

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