Bug 1273112 - First attempt to log out fails
Summary: First attempt to log out fails
Alias: None
Product: Fedora
Classification: Fedora
Component: gdm
Version: 23
Hardware: All
OS: All
Target Milestone: ---
Assignee: Ray Strode [halfline]
QA Contact: Fedora Extras Quality Assurance
Whiteboard: AcceptedFreezeException RejectedBlock...
Depends On:
Blocks: F23FinalFreezeException
TreeView+ depends on / blocked
Reported: 2015-10-19 15:55 UTC by Adam Williamson
Modified: 2016-12-20 15:04 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2016-12-20 15:04:05 UTC
Type: Bug

Attachments (Terms of Use)
journal from an affected boot (485.64 KB, text/plain)
2015-10-19 16:26 UTC, Adam Williamson
no flags Details
updated journal (23 Final RC2) (399.52 KB, text/plain)
2015-10-21 18:52 UTC, Adam Williamson
no flags Details
my journalctl (23 Final RC2) (444.62 KB, text/plain)
2015-10-21 20:48 UTC, Giulio 'juliuxpigface'
no flags Details

Description Adam Williamson 2015-10-19 15:55:51 UTC
I've been able to repeat this one quite reliably:

* Clean install of a recent F23 Final Workstation live (TC9, TC10, TC11)
* Boot installed system
* Create user in gnome-initial-setup
* Get to desktop as that user
* Try to log out

Instead of logging me out it just blanks the screen briefly then returns to the logged-in desktop. A second attempt to log out either works or hits https://bugzilla.redhat.com/show_bug.cgi?id=1272737 .

Comment 1 Adam Williamson 2015-10-19 16:26:26 UTC
Created attachment 1084456 [details]
journal from an affected boot

This is a journal from an affected boot. It's the first boot after install; it includes g-i-s user creation, then login, then the first logout attempt fails with this bug. Note: I then went out and tried to log out two more times, as I was working on other bugs too. The first logout attempt is the one relevant to this bug.

Comment 2 Adam Williamson 2015-10-21 18:52:20 UTC
Created attachment 1085268 [details]
updated journal (23 Final RC2)

Still happens with 23 Final RC2; attaching updated journal, this time with only this bug in it (no subsequent logout/login attempts). I *did* see the distinctive 'pebbled grey' GDM background very briefly. When I click 'log out' what actually happens is the screen goes blank briefly, then comes back to the desktop - just between the blank screen and the desktop I briefly saw a flash of the GDM background, it seemed.

Comment 3 Adam Williamson 2015-10-21 18:56:09 UTC
I guess this is technically a violation of "Shutting down, logging out and rebooting must work using standard console commands and the mechanisms offered (if any) by all release-blocking desktops." - https://fedoraproject.org/wiki/Fedora_23_Beta_Release_Criteria#Shutdown.2C_reboot.2C_logout - when installing Workstation and just for the first logout. I'd probably be inclined to -1 and CommonBugs it, but we should at least discuss it.

Comment 4 Mairi Dulaney 2015-10-21 20:17:19 UTC
I just hit this with TC2 workstation x86_64

Comment 5 Adam Williamson 2015-10-21 20:27:18 UTC
Hmm, in fact, it seems it logs you out and automatically logs you back in. I just hit it again, and I had a console open; when it came back to the desktop, the console was gone.


I wonder if this is related to https://bugzilla.redhat.com/show_bug.cgi?id=1272706 somehow? The session that g-i-s tries to set up when you finish it instead is somehow 'kicking in' after you first log out?

Comment 6 Giulio 'juliuxpigface' 2015-10-21 20:48:01 UTC
Created attachment 1085327 [details]
my journalctl (23 Final RC2)

Comment 7 Giulio 'juliuxpigface' 2015-10-21 20:48:59 UTC
Reproduced here on the first login, with TC2 workstation x86_64 on a qemu-kvm guest.

Additionally, I noticed some details:
1) After hitting the bug, I switched to another VT with Ctrl+Alt+F3 in order to retrieve journalctl's log.
2) Then, I've tried to switch back and the virtual screen "freezed". I issued a reboot via virt-manager.
3) I'm hitting this on every boot, don't know if it may be related or not: https://bugzilla.redhat.com/show_bug.cgi?id=1259985.

Comment 8 Adam Williamson 2015-10-21 21:18:17 UTC
so yeah, I just did an install creating a user in anaconda instead of in g-i-s, and the first log out attempt worked.

Comment 9 Adam Williamson 2015-10-21 23:16:37 UTC
OK, yeah, seems like it's definitely caused by 1272706. Every time I hit that bug - i.e. after creating a user in g-i-s I get sent to GDM, not to a logged-in desktop - I also hit this bug: when I log out, I'm immediately logged back in. Any time I *don't* hit that bug, I don't hit this bug either: the first logout works.

So I suspect what's happening is some kinda race. g-i-s tries to start up a session as the user you just created, but it doesn't do it fast enough or does it too fast or something(?), and GDM comes up. You log in manually. When you log out, the session g-i-s was trying to start up 'kicks in' somehow. I'll poke about at the code a bit, but probably a dev is more likely able to spot the cause of this than me.

FWIW, I hit the two bugs testing both in a KVM and on bare metal almost all the time (think once or twice I got lucky). I managed to get a successful g-i-s to session transition only by adding 'nomodeset', as suggested by kalev, in a VM boot.

Comment 10 Adam Williamson 2015-10-22 16:45:05 UTC
Discussed at 2015-10-22 Go/No-Go meeting, acting as a blocker review meeting: https://meetbot-raw.fedoraproject.org/fedora-meeting-2/2015-10-22/f23-final-go_no_go-meeting.2015-10-22-16.00.log.txt . As this is a one-time bug and easy to document (though it's bad from a polish perspective) this was rejected as a blocker, but it was accepted as a freeze exception because, indeed, it's pretty bad OOTB polish and we should fix it if possible.

Comment 11 Christian Stadelmann 2016-09-22 18:26:27 UTC
I've also seen this on F25 alpha when gnome-settings-daemon wasn't reacting to any IPC due to bug #1366775.

Comment 12 Fedora End Of Life 2016-11-24 12:50:45 UTC
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Comment 13 Fedora End Of Life 2016-12-20 15:04:05 UTC
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