[Bug 1765261] Re: Ubuntu 18.04 login screen rejects a valid password on first attempt. Usually works on the second attempt

2018-04-23 Thread Daniel van Vugt 
Here's the installation log from the day the regression happened (I
think).

Start-Date: 2018-04-19  09:16:47
Commandline: apt full-upgrade
Requested-By: dan (1000)
Install: libisc169:amd64 (1:9.11.3+dfsg-1ubuntu1, automatic), 
libisc-export169:amd64 (1:9.11.3+dfsg-1ubuntu1, automatic), 
libsysmetrics1:amd64 (1.0.8, automatic), libdns-export1100:amd64 
(1:9.11.3+dfsg-1ubuntu1, automatic), gnome-initial-setup:amd64 
(3.28.0-2ubuntu3, automatic), libdns1100:amd64 (1:9.11.3+dfsg-1ubuntu1, 
automatic), ubuntu-report:amd64 (1.0.8, automatic)
Upgrade: ubuntu-settings:amd64 (18.04.4, 18.04.5), libgoa-backend-1.0-1:amd64 
(3.28.0-0ubuntu1, 3.28.0-0ubuntu2), libgjs-dev:amd64 (1.52.1-1, 
1.52.1-1ubuntu1), gnome-calendar:amd64 (3.28.1-1ubuntu1, 3.28.1-1ubuntu2), 
netplan.io:amd64 (0.34.1, 0.35), libibus-1.0-dev:amd64 (1.5.17-3ubuntu3, 
1.5.17-3ubuntu4), libisccfg160:amd64 (1:9.11.2.P1-1ubuntu5, 
1:9.11.3+dfsg-1ubuntu1), networkd-dispatcher:amd64 (1.7-0ubuntu1, 
1.7-0ubuntu2), gir1.2-mutter-2:amd64 (3.28.0-2, 3.28.1-1), libgoa-1.0-0b:amd64 
(3.28.0-0ubuntu1, 3.28.0-0ubuntu2), update-notifier-common:amd64 (3.190, 
3.191), libgoa-1.0-common:amd64 (3.28.0-0ubuntu1, 3.28.0-0ubuntu2), 
libgjs0g:amd64 (1.52.1-1, 1.52.1-1ubuntu1), libirs160:amd64 
(1:9.11.2.P1-1ubuntu5, 1:9.11.3+dfsg-1ubuntu1), bind9-host:amd64 
(1:9.11.2.P1-1ubuntu5, 1:9.11.3+dfsg-1ubuntu1), dnsutils:amd64 
(1:9.11.2.P1-1ubuntu5, 1:9.11.3+dfsg-1ubuntu1), ubuntu-standard:amd64 (1.416, 
1.417), ubuntu-desktop:amd64 (1.416, 1.417), libmutter-2-0:amd64 (3.28.0-2, 
3.28.1-1), libgoa-1.0-dev:amd64 (3.28.0-0ubuntu1, 3.28.0-0ubuntu2), gjs:amd64 
(1.52.1-1, 1.52.1-1ubuntu1), libkeyutils-dev:amd64 (1.5.9-9.2ubuntu1, 
1.5.9-9.2ubuntu2), isc-dhcp-common:amd64 (4.3.5-3ubuntu6, 4.3.5-3ubuntu7), 
command-not-found-data:amd64 (18.04.2, 18.04.3), gnumeric-doc:amd64 (1.12.35-1, 
1.12.35-1.1), ibus-gtk:amd64 (1.5.17-3ubuntu3, 1.5.17-3ubuntu4), 
ibus-gtk3:amd64 (1.5.17-3ubuntu3, 1.5.17-3ubuntu4), gnumeric-common:amd64 
(1.12.35-1, 1.12.35-1.1), mutter-common:amd64 (3.28.0-2, 3.28.1-1), nplan:amd64 
(0.34.1, 0.35), ubuntu-minimal:amd64 (1.416, 1.417), python3-distupgrade:amd64 
(1:18.04.16, 1:18.04.17), python3-commandnotfound:amd64 (18.04.2, 18.04.3), 
ubuntu-release-upgrader-core:amd64 (1:18.04.16, 1:18.04.17), 
libgoa-backend-1.0-dev:amd64 (3.28.0-0ubuntu1, 3.28.0-0ubuntu2), 
liblwres160:amd64 (1:9.11.2.P1-1ubuntu5, 1:9.11.3+dfsg-1ubuntu1), 
libkeyutils1:amd64 (1.5.9-9.2ubuntu1, 1.5.9-9.2ubuntu2), 
gnome-shell-common:amd64 (3.28.0-0ubuntu5, 3.28.1-0ubuntu1), 
gir1.2-goa-1.0:amd64 (3.28.0-0ubuntu1, 3.28.0-0ubuntu2), 
gnome-online-accounts:amd64 (3.28.0-0ubuntu1, 3.28.0-0ubuntu2), ibus:amd64 
(1.5.17-3ubuntu3, 1.5.17-3ubuntu4), thermald:amd64 (1.7.0-3, 1.7.0-5), 
ubuntu-release-upgrader-gtk:amd64 (1:18.04.16, 1:18.04.17), mythes-en-us:amd64 
(1:6.0.3-2, 1:6.0.3-3), libibus-1.0-5:amd64 (1.5.17-3ubuntu3, 1.5.17-3ubuntu4), 
gir1.2-ibus-1.0:amd64 (1.5.17-3ubuntu3, 1.5.17-3ubuntu4), 
command-not-found:amd64 (18.04.2, 18.04.3), libisccc160:amd64 
(1:9.11.2.P1-1ubuntu5, 1:9.11.3+dfsg-1ubuntu1), gnome-shell:amd64 
(3.28.0-0ubuntu5, 3.28.1-0ubuntu1), libbind9-160:amd64 (1:9.11.2.P1-1ubuntu5, 
1:9.11.3+dfsg-1ubuntu1), ubuntu-web-launchers:amd64 (18.04.4, 18.04.5), 
gnumeric:amd64 (1.12.35-1, 1.12.35-1.1), libmutter-2-dev:amd64 (3.28.0-2, 
3.28.1-1), isc-dhcp-client:amd64 (4.3.5-3ubuntu6, 4.3.5-3ubuntu7), 
update-notifier:amd64 (3.190, 3.191), mutter:amd64 (3.28.0-2, 3.28.1-1)
Remove: gnome-shell-dbgsym:amd64 (3.28.0-0ubuntu5), libmutter-2-0-dbgsym:amd64 
(3.28.0-2), mutter-dbgsym:amd64 (3.28.0-2)
End-Date: 2018-04-19  09:17:30

Start-Date: 2018-04-19  09:17:59
Commandline: apt autoremove
Requested-By: dan (1000)
Remove: libdns-export169:amd64 (1:9.11.2.P1-1ubuntu5), libisc166:amd64 
(1:9.11.2.P1-1ubuntu5), libisc-export166:amd64 (1:9.11.2.P1-1ubuntu5), 
libdns169:amd64 (1:9.11.2.P1-1ubuntu5)
End-Date: 2018-04-19  09:18:00


** Changed in: gdm3 (Ubuntu)
   Importance: Undecided => High

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Title:
  Ubuntu 18.04 login screen rejects a valid password on first attempt.
  Usually works on the second attempt

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[Bug 1765261] Re: Ubuntu 18.04 login screen rejects a valid password on first attempt. Usually works on the second attempt

2018-04-22 Thread Daniel van Vugt 
EXAMPLE 3

journalctl -b -f

LOGIN FAILED:
Apr 23 14:40:40 haz gdm-password][1342]: pam_unix(gdm-password:auth): 
authentication failure; logname= uid=0 euid=0 tty=/dev/tty1 ruser= rhost=  
user=dan
Apr 23 14:40:46 haz systemd[1]: Starting Stop ureadahead data collection...
Apr 23 14:40:46 haz systemd[1]: Started Stop ureadahead data collection.

LOGIN SUCCEEDED ON SECOND ATTEMPT:
Apr 23 14:41:12 haz gdm-password][1349]: pam_unix(gdm-password:session): 
session opened for user dan by (uid=0)
Apr 23 14:41:12 haz systemd-logind[818]: New session 4 of user dan.
Apr 23 14:41:12 haz systemd[1]: Started Session 4 of user dan.

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https://bugs.launchpad.net/bugs/1765261

Title:
  Ubuntu 18.04 login screen rejects a valid password on first attempt.
  Usually works on the second attempt

To manage notifications about this bug go to:
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[Bug 1765261] Re: Ubuntu 18.04 login screen rejects a valid password on first attempt. Usually works on the second attempt

2018-04-22 Thread Daniel van Vugt 
EXAMPLE 2

/var/log/auth.log

LOGIN FAILED:
Apr 23 14:33:34 haz gdm-password]: pam_unix(gdm-password:auth): authentication 
failure; logname= uid=0 euid=0 tty=/dev/tty1 ruser= rhost=  user=dan

LOGIN ALMOST SUCCEEDED (but then hit bug 1766137):
Apr 23 14:33:46 haz gdm-password]: pam_unix(gdm-password:session): session 
opened for user dan by (uid=0)
--- there is no gnome-shell process running, but journalctl shows: ---
Apr 23 14:33:47 haz gnome-shell[912]: g_dbus_connection_call_sync_internal: 
assertion 'G_IS_DBUS_CONNECTION (connection)' failed

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https://bugs.launchpad.net/bugs/1765261

Title:
  Ubuntu 18.04 login screen rejects a valid password on first attempt.
  Usually works on the second attempt

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1765261/+subscriptions

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[Bug 1765261] Re: Ubuntu 18.04 login screen rejects a valid password on first attempt. Usually works on the second attempt

2018-04-22 Thread Daniel van Vugt 
EXAMPLE 1

/var/log/auth.log

LOGIN FAILED:
Apr 23 14:30:40 haz sudo: pam_unix(sudo:session): session opened for user root 
by dan(uid=0)
Apr 23 14:30:57 haz gdm-password]: pam_unix(gdm-password:auth): authentication 
failure; logname= uid=0 euid=0 tty=/dev/tty1 ruser= rhost=  user=dan

LOGIN SUCCEEDED ON SECOND ATTEMPT:
Apr 23 14:31:23 haz gdm-password]: pam_unix(gdm-password:session): session 
opened for user dan by (uid=0)
Apr 23 14:31:23 haz systemd-logind[725]: New session 8 of user dan.


** Summary changed:

- Ubuntu 18.04 login screen rejects a valid password on first attempt. Always 
works on the second attempt
+ Ubuntu 18.04 login screen rejects a valid password on first attempt. Usually 
works on the second attempt

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https://bugs.launchpad.net/bugs/1765261

Title:
  Ubuntu 18.04 login screen rejects a valid password on first attempt.
  Usually works on the second attempt

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