Gdm3 asks password randomly when automatic login is enabled

[lotuspsychje]

Ubuntu 18.04.3 up to date to latest @ 11/8/2019 with kernel: 5.0.0-23-generic #24~18.04.1-Ubuntu

Gdm3 asks randomly for the user password at login, when automatic login is enabled

I did not use seahorse yet, just system settings/details/users to enable auto login

when filing the bug, it asked me to attach /etc/gdm3/custom.conf as it was modified
but i never edited it myself.

I cannot reproduce this, this happens at random on cold boots.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gdm3 3.28.3-0ubuntu18.04.4
ProcVersionSignature: Ubuntu 5.0.0-23.24~18.04.1-generic 5.0.15
Uname: Linux 5.0.0-23-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sun Aug 11 15:25:49 2019
InstallationDate: Installed on 2019-05-18 (85 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
SourcePackage: gdm3
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.gdm3.custom.conf: 2019-05-18T14:43:46.987133

[lotuspsychje (lotuspsychje)]

from my auth.log:

Aug 8 05:02:15 NUC gdm-autologin]: gkr-pam: no password is available for user
Aug 8 05:02:15 NUC gdm-autologin]: pam_unix(gdm-autologin:session): session opened for user lotuspsychje by (uid=0)

[Daniel van Vugt (vanvugt)]

Maybe related to bug 1740792.

[Jaromir Obr (jaromir-obr)]

Have the same issue, even reboot didn't help me (but it was working some time ago). I get this in auth log:
---------------------------------------
Sep 18 18:28:58 autotest-NUC8i7BEH gdm-autologin]: gkr-pam: no password is available for user
Sep 18 18:28:59 autotest-NUC8i7BEH gdm-autologin]: pam_unix(gdm-autologin:session): session opened for user autotest by (uid=0)
Sep 18 18:29:00 autotest-NUC8i7BEH gdm-autologin]: pam_unix(gdm-autologin:session): session closed for user autotest
Sep 18 18:29:00 autotest-NUC8i7BEH gdm-autologin]: gkr-pam: no password is available for user
Sep 18 18:29:01 autotest-NUC8i7BEH gdm-autologin]: pam_unix(gdm-autologin:session): session opened for user autotest by (uid=0)
Sep 18 18:29:02 autotest-NUC8i7BEH gdm-autologin]: pam_unix(gdm-autologin:session): session closed for user autotest
Sep 18 18:29:02 autotest-NUC8i7BEH gdm-autologin]: gkr-pam: no password is available for user
Sep 18 18:29:03 autotest-NUC8i7BEH gdm-autologin]: pam_unix(gdm-autologin:session): session opened for user autotest by (uid=0)
Sep 18 18:29:04 autotest-NUC8i7BEH gdm-autologin]: pam_unix(gdm-autologin:session): session closed for user autotest
....

But user "autotest" has set password, I'm able to login to him over SSH

Any idea/workaround?

Used SW:
* Ubuntu 19.04, GDM 3.32.0, kernel 5.0.0-27-generic

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.