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[Bug 1511824] [NEW] Can't login as ordinary user with lightdm

 

Public bug reported:

I can't login as ordinary user rose with lightdm.
It is an Ubuntu 15.04 for armv7l .
At the beginning I saw the already reported issues with kwallet, which is not installed. I commented out the corresponding lines in. I have now:

root@odroid6:~# cat /etc/pam.d/lightdm
#%PAM-1.0
auth requisite pam_nologin.so
auth sufficient pam_succeed_if.so user ingroup nopasswdlogin
@include common-auth
auth optional pam_gnome_keyring.so
#auth optional pam_kwallet.so
@include common-account
session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so close
session required pam_limits.so
@include common-session
session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so open
session optional pam_gnome_keyring.so auto_start
#session optional pam_kwallet.so auto_start
session required pam_env.so readenv=1
session required pam_env.so readenv=1 user_readenv=1 envfile=/etc/default/locale
@include common-password

and

root@odroid6:~# cat /etc/pam.d/lightdm-greeter
#%PAM-1.0
auth required pam_permit.so
auth optional pam_gnome_keyring.so
#auth optional pam_kwallet.so
@include common-account
session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so close
session required pam_limits.so
@include common-session
session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so open
session optional pam_gnome_keyring.so auto_start
#session optional pam_kwallet.so auto_start
session required pam_env.so readenv=1
session required pam_env.so readenv=1 user_readenv=1 envfile=/etc/default/locale

It seems that my password is accepted (login via ssh works perfectly),
but with lightdm I get only a black screen with mouse cursor. Login as
user odroid which is in group nopasswdlogin with lightdm works.

After trying to login as user rose, I have to login with ssh and kill
all processes owned by rose. At the end of /var/log/auth.log I see:

Oct 28 19:34:17 odroid6 lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "rose"
Oct 28 19:34:26 odroid6 lightdm: pam_unix(lightdm-greeter:session): session closed for user lightdm
Oct 28 19:34:26 odroid6 lightdm: pam_unix(lightdm:session): session opened for user rose by (uid=0)
Oct 28 19:34:26 odroid6 systemd-logind[651]: New session c8 of user rose.
Oct 28 19:34:26 odroid6 systemd: pam_unix(systemd-user:session): session opened for user rose by (uid=0)
Oct 28 19:35:10 odroid6 systemd-logind[651]: Removed session c6.
Oct 28 19:35:10 odroid6 systemd: pam_unix(systemd-user:session): session closed for user lightdm

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: lightdm 1.14.2-0ubuntu1.1
Uname: Linux 3.10.82-57 armv7l
ApportVersion: 2.17.2-0ubuntu1.7
Architecture: armhf
Date: Fri Oct 30 18:14:21 2015
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.pam.d.lightdm: 2015-10-28T17:40:04.609656
mtime.conffile..etc.pam.d.lightdm.greeter: 2015-10-28T17:53:38.848444

** Affects: lightdm (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug armhf vivid

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to lightdm in Ubuntu.
https://bugs.launchpad.net/bugs/1511824

Title:
  Can't login as ordinary user with lightdm

Status in lightdm package in Ubuntu:
  New

Bug description:
  I can't login as ordinary user rose with lightdm.
  It is an Ubuntu 15.04 for armv7l .
  At the beginning I saw the already reported issues with kwallet, which is not installed. I commented out the corresponding lines in. I have now:

  root@odroid6:~# cat /etc/pam.d/lightdm
  #%PAM-1.0
  auth requisite pam_nologin.so
  auth sufficient pam_succeed_if.so user ingroup nopasswdlogin
  @include common-auth
  auth optional pam_gnome_keyring.so
  #auth optional pam_kwallet.so
  @include common-account
  session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so close
  session required pam_limits.so
  @include common-session
  session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so open
  session optional pam_gnome_keyring.so auto_start
  #session optional pam_kwallet.so auto_start
  session required pam_env.so readenv=1
  session required pam_env.so readenv=1 user_readenv=1 envfile=/etc/default/locale
  @include common-password

  and

  root@odroid6:~# cat /etc/pam.d/lightdm-greeter
  #%PAM-1.0
  auth required pam_permit.so
  auth optional pam_gnome_keyring.so
  #auth optional pam_kwallet.so
  @include common-account
  session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so close
  session required pam_limits.so
  @include common-session
  session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so open
  session optional pam_gnome_keyring.so auto_start
  #session optional pam_kwallet.so auto_start
  session required pam_env.so readenv=1
  session required pam_env.so readenv=1 user_readenv=1 envfile=/etc/default/locale

  It seems that my password is accepted (login via ssh works perfectly),
  but with lightdm I get only a black screen with mouse cursor. Login as
  user odroid which is in group nopasswdlogin with lightdm works.

  After trying to login as user rose, I have to login with ssh and kill
  all processes owned by rose. At the end of /var/log/auth.log I see:

  Oct 28 19:34:17 odroid6 lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "rose"
  Oct 28 19:34:26 odroid6 lightdm: pam_unix(lightdm-greeter:session): session closed for user lightdm
  Oct 28 19:34:26 odroid6 lightdm: pam_unix(lightdm:session): session opened for user rose by (uid=0)
  Oct 28 19:34:26 odroid6 systemd-logind[651]: New session c8 of user rose.
  Oct 28 19:34:26 odroid6 systemd: pam_unix(systemd-user:session): session opened for user rose by (uid=0)
  Oct 28 19:35:10 odroid6 systemd-logind[651]: Removed session c6.
  Oct 28 19:35:10 odroid6 systemd: pam_unix(systemd-user:session): session closed for user lightdm

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: lightdm 1.14.2-0ubuntu1.1
  Uname: Linux 3.10.82-57 armv7l
  ApportVersion: 2.17.2-0ubuntu1.7
  Architecture: armhf
  Date: Fri Oct 30 18:14:21 2015
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: lightdm
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.pam.d.lightdm: 2015-10-28T17:40:04.609656
  mtime.conffile..etc.pam.d.lightdm.greeter: 2015-10-28T17:53:38.848444

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