Screen unlocked on external monitor plugged?

[Gustavo Niemeyer]

This morning I experienced an interaction which left me a bit concerned.

I took a sleeping laptop to the office, opened it, and the usual login dialog came up. I then plugged in an external monitor, and it unlocked.

Anybody experienced something similar recently?

Looking through the logs there's nothing relevant that could be attributed to a crash or similar.

Here is auth.log:

Jun 29 10:00:15 nomade systemd-logind[991]: Lid opened.
Jun 29 10:00:15 nomade systemd-logind[991]: Operation 'sleep' finished.
Jun 29 10:00:18 nomade compiz: gkr-pam: unlocked login keyring
Jun 29 10:01:16 nomade pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Jun 29 10:01:16 nomade pkexec: pam_systemd(polkit-1:session): Cannot create session: Already running in a session
Jun 29 10:01:16 nomade pkexec[8025]: niemeyer: Executing command [USER=root] [TTY=unknown] [CWD=/home/niemeyer] [COMMAND=/usr/lib/update-notifier/package-system-locked]
Jun 29 10:17:01 nomade CRON[8284]: pam_unix(cron:session): session opened for user root by (uid=0)

Here is syslog:

http://paste.ubuntu.com/18099435/

Nothing suspect there either, it seems.

Any hints about what else I should look at?

[Sebastien Bacher (seb128)]

could you add your ~/.cache/upstart/unity7.log as well?

[Gustavo Niemeyer (niemeyer)]

There's no time in most lines in that file unfortunately, but this might be it:

WARN 2016-06-28 20:36:08 nux.inputmethod.ibus InputMethodIBus.cpp:67 Impossible to connect to connect to ibus
[2378:2411:0629/100015:ERROR:connection_factory_impl.cc(367)] Failed to connect to MCS endpoint with error -106
[2378:2411:0629/100021:ERROR:connection_factory_impl.cc(367)] Failed to connect to MCS endpoint with error -21
failed to create drawable
compiz (core) - Warn: glXCreatePixmap failed
XmbTextListToTextProperty result code -2
XmbTextListToTextProperty result code -2
XmbTextListToTextProperty result code -2
XmbTextListToTextProperty result code -2
XmbTextListToTextProperty result code -2

These last lines seem unrelated, but they repeat hundreds of times in that file.

[Andrea Azzarone (azzar1)]

Would be nice to know which version of unity are you running.

[Gustavo Niemeyer (niemeyer)]

Here it goes:

ii unity 7.4.0+16.04.20160526.1-0 amd64

[Andrea Azzarone (azzar1)]

Also this line
"Jun 29 10:00:18 nomade compiz: gkr-pam: unlocked login keyring"
suggests that the "unlock" comes from pam itself.

[Launchpad Janitor (janitor)]

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