the system sometimes logs out rather than locking the screen

[Dylan Borg]

I am using Ubuntu 15.04 and booting with systemd. In most cases locking the screen works as expected but in certain cases the machine logs out instead. Can this be fixed?

[Martin Pitt (pitti)]

It's very unlikely that this is related to systemd, as it's got nothing at all to do with handling the user session and screen locking. This is handled by unity. The most probable reason is that unity crashes when it's trying to lock the screen. When this happens, do you get a crash notification? Do you have anything in /var/crash/ ? Please also attach ~/.cache/upstart/unity7.log right after this happens. Thanks!

[Dylan Borg (borgdylan)]

Ok I will attach the specified files, the next times this occurs.

[Dylan Borg (borgdylan)]

In onc case, I had a unity panel service crash, in another a crush in the hud and in compiz. Will upload crash files shortly.

[Dylan Borg (borgdylan)]

hud crash on 17th april

[Dylan Borg (borgdylan)]

compiz crash on 17th april

[Dylan Borg (borgdylan)]

unity panel service on 12th april

[Dylan Borg (borgdylan)]

part one of unity log for april 17th

[Dylan Borg (borgdylan)]

second part of unity log for april 17th (this means there were two unity startups the second one(uploaded before) being the one after the crash)

[Dylan Borg (borgdylan)]

unity panel service log part 1

[Dylan Borg (borgdylan)]

unity panel service log part 2

[Dylan Borg (borgdylan)]

lockscreen log

[GregE (gregeise)]

Same thing happening to me on 14.04. Sometimes locking computer will log out the user.

[GregE (gregeise)]

So my system had the issue again right after I posted comment #12. I see multiple crash reports in /var/crash, but this particular one was the file attached.

[GregE (gregeise)]

A logged out successfully once, then tried again and it crashed/logged out/whatever again afterwords.

This time there is a report from Chrome in /var/crash.

That report attached and my next comment will have unity7.log as requested above.

[GregE (gregeise)]

unity7.log

[Dylan Borg (borgdylan)]

compiz crash log after two auto logouts

[Dylan Borg (borgdylan)]

There are days when this happens many times and days where it does not happen at all. I may switch to gnome shell until this gets fixed.

[GregE (gregeise)]

I don't know if this information will help:

When I lock the laptop and it logs me out, and then I try and log back in, I have to log in twice. I get a login prompt on top of what looks like the system default background, then my desktop background loads, and then I log in again. It doesn't act like I entered the wrong password or anything (I'm not), it simply asks me to log in twice.

Anyhow, this bug is critical. I can't use my PC without locking in the workplace.

[Launchpad Janitor (janitor)]

[Expired for unity (Ubuntu) because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for Unity because there has been no activity for 60 days.]