[Bug 1881812] Re: gdm can't open session for ldap users with usernames that begin with a number

[Balint Reczey]

It is fixed in the systemd package since 245.4-4ubuntu1.

** Changed in: systemd (Ubuntu)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1881812

Title:
  gdm can't open session for ldap users with usernames that begin with a
  number

Status in gdm:
  Unknown
Status in systemd:
  Fix Released
Status in systemd package in Ubuntu:
  Fix Released

Bug description:
  Description:    Ubuntu 20.04 LTS

  with ubuntu-desktop and libnss-ldapd

  Trying to log in to the desktop environment when the username (e.g
  9912345) begins with a number results in a black screen, and then
  quits back to the log in screen.

  Here is the error:
  `...gdm-password][5010]: pam_systemd(gdm-password:session): Failed to get user record: Invalid argument`

  However, these users can log-in via ssh, and via TTY without issue.

  This error does not occur if I log in with other users, without a
  number (e.g. test.user)

  Also, the error does not occur if I switch to LightDM.  With LightDM,
  a username such as 9912345 can login to the desktop desktop
  environment.

  $ apt-cache policy gdm3
  gdm3:
    Installed: 3.34.1-1ubuntu1
    Candidate: 3.34.1-1ubuntu1
    Version table:
   *** 3.34.1-1ubuntu1 500
          500 http://ca.archive.ubuntu.com/ubuntu focal/main amd64 Packages
          100 /var/lib/dpkg/status

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