Ubuntu
lightdm package

lightdm pausing a long time at boot

Bug #1129157 reported by Serge Hallyn on 2013-02-18

This bug report is a duplicate of: Bug #1124330: [raring] Latest whoopsie 0.2.13 slows down boot process by 29 seconds!. Edit Remove

This bug affects 10 people

	Status	Importance	Assigned to
consolekit (Ubuntu)	Confirmed	Undecided	Unassigned
dbus (Ubuntu)	Confirmed	Undecided	Unassigned
lightdm (Ubuntu)	Confirmed	Undecided	Unassigned

Bug Description

When I boot my core i7 ssd laptop, which used to take about 10s or less, it now hangs for another 20 secs with blank screen before lightdm pops up. The bootchart.png (which i'll attach) and lightdm logs show that lightdm seems to be waiting on something for that long, and nothing else seems to be going on.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: lightdm 1.4.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.8.0-6.11-generic 3.8.0-rc7
Uname: Linux 3.8.0-6-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.8-0ubuntu4
Architecture: amd64
Date: Mon Feb 18 08:41:52 2013
InstallationDate: Installed on 2012-03-24 (330 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120323)
LightdmConfig:
[SeatDefaults]
user-session=ubuntu
greeter-session=unity-greeter
MarkForUpload: True
ProcEnviron:
TERM=rxvt
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: lightdm
UpgradeStatus: Upgraded to raring on 2012-12-12 (67 days ago)
modified.conffile..etc.init.lightdm.conf: [modified]
mtime.conffile..etc.init.lightdm.conf: 2012-04-17T09:28:07.756400

Tags:

Revision history for this message

Serge Hallyn (serge-hallyn) wrote on 2013-02-18:

Dependencies.txt Edit (25.2 KiB, text/plain; charset="utf-8")
LightdmDisplayLog.txt Edit (2.3 KiB, text/plain; charset="utf-8")
LightdmGreeterLog.txt Edit (12.7 KiB, text/plain; charset="utf-8")
LightdmGreeterLogOld.txt Edit (8.2 KiB, text/plain; charset="utf-8")
LightdmLog.txt Edit (3.6 KiB, text/plain; charset="utf-8")
LightdmUsersConfig.txt Edit (455 bytes, text/plain; charset="utf-8")

Revision history for this message

Serge Hallyn (serge-hallyn) wrote on 2013-02-18:

bootchart.png Edit (395.0 KiB, image/png)

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Jouni Mettala (jouni-mettala) wrote on 2013-02-18:

From: LightdmLog.txt

[+2.65s] DEBUG: Started session 2270 with service 'lightdm-greeter', username 'lightdm'
[+25.40s] DEBUG: Session 2270 authentication complete with return value 0: Success

Changed in lightdm (Ubuntu):
status:	New → Confirmed

Revision history for this message

Thaddaeus Tintenfisch (thad-fisch-deactivatedaccount) wrote on 2013-02-19:

Did you check syslog for entries related to the delay.

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Serge Hallyn (serge-hallyn) wrote on 2013-02-19:

syslog.1 Edit (125.8 KiB, text/plain)

Here is the syslog bit from my latest boot. I haven't had a chance to correlate exactly to the bootchart.

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Serge Hallyn (serge-hallyn) wrote on 2013-02-21:

I do see (in today's latest log):

Feb 20 21:05:58 sergelap dbus[686]: [system] Activating service name='org.freedesktop.ConsoleKit' (using servicehelper)
...
Feb 20 21:06:23 sergelap dbus[686]: [system] Failed to activate service 'org.freedesktop.ConsoleKit': timed out
Feb 20 21:06:23 sergelap dbus[686]: [system] Activating service name='org.freedesktop.ConsoleKit' (using servicehelper)
Feb 20 21:06:23 sergelap dbus[686]: [system] Successfully activated service 'org.freedesktop.ConsoleKit'

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Serge Hallyn (serge-hallyn) wrote on 2013-02-21:

makes me wonder if I should just have lightdm.conf sleep 1 or 2 seconds. Apparently it comes up before consolekit can run, and then times out for an insane 20 seconds before trying again?

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Thaddaeus Tintenfisch (thad-fisch-deactivatedaccount) wrote on 2013-02-21:

I can confirm this blocking time out. It does not happen on every boot though. So it might be some kind of race condition caused by upgrading to 13.04.

Running dbus in debug mode would be the next step to solve this mystery I guess.

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Thaddaeus Tintenfisch (thad-fisch-deactivatedaccount) wrote on 2013-02-21:

You upgraded to Raring like two months ago. Since when does your system take longer to boot?

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Serge Hallyn (serge-hallyn) wrote on 2013-02-21: Re: [Bug 1129157] Re: lightdm pausing a long time at boot

#10

Quoting Thaddäus Tintenfisch (<email address hidden>):
> You upgraded to Raring like two months ago. Since when does your system
> take longer to boot?

It just started last week (-ish).

-serge

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Launchpad Janitor (janitor) wrote on 2013-02-22:

#11

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

Changed in consolekit (Ubuntu):
status:	New → Confirmed

Revision history for this message

Per-Inge (per-inge-hallin) wrote on 2013-02-22:

#12

In my case this happens at every boot. I upgraded to Raring last week. The boot behaves as normal, but instead of showing the login screen there is a pause of about 20 sec.

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Thaddaeus Tintenfisch (thad-fisch-deactivatedaccount) wrote on 2013-02-22:

#13

Related bug reports:

https://bugs.launchpad.net/bugs/1123798
https://bugs.launchpad.net/bugs/1127051

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Thaddaeus Tintenfisch (thad-fisch-deactivatedaccount) wrote on 2013-02-23:

#14

Edit the corresponding dbus service file

/usr/share/dbus-1/system-services/org.freedesktop.ConsoleKit.service

and add the debug flag

Exec=/usr/sbin/console-kit-daemon --no-daemon --debug

Reboot your system and attach the syslog log file.

Revision history for this message

Per-Inge (per-inge-hallin) wrote on 2013-02-23:

#15

part-of-syslog Edit (223.0 KiB, text/plain)

This is what I get in syslog after the reboot. I stopped XBMC and then made a reboot.
The delay between spin down of the fans and presentation of the login screen was about 20 sec.

Revision history for this message

Per-Inge (per-inge-hallin) wrote on 2013-02-23:

#16

I changed IPV6 to ignore, but didn't change anything.

Feb 23 15:15:25 pi-GA-990FXA-UD3-1304 dbus[903]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Feb 23 15:15:33 pi-GA-990FXA-UD3-1304 ntpdate[2034]: adjust time server 91.189.94.4 offset 0.295083 sec
Feb 23 15:15:47 pi-GA-990FXA-UD3-1304 dbus[903]: [system] Failed to activate service 'org.freedesktop.ConsoleKit': timed out
Feb 23 15:15:47 pi-GA-990FXA-UD3-1304 dbus[903]: [system] Activating service name='org.freedesktop.ConsoleKit' (using servicehelper)
Feb 23 15:15:47 pi-GA-990FXA-UD3-1304 console-kit-daemon[2133]: DEBUG: Debugging enabled

Revision history for this message

Launchpad Janitor (janitor) wrote on 2013-02-23:

#17

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

Changed in dbus (Ubuntu):
status:	New → Confirmed

Revision history for this message

Serge Hallyn (serge-hallyn) wrote on 2013-02-23:

#18

Not sure whether this has been fixed as of yesterday, or just hasn't shown up lately. Boots are fast again right now.

Revision history for this message

Thaddaeus Tintenfisch (thad-fisch-deactivatedaccount) wrote on 2013-02-24:

#19

So the bug has been fixed silently? Don't think any of the recent updates was targeting one of the affected packages.

Revision history for this message

Per-Inge (per-inge-hallin) wrote on 2013-02-24:

#20

Not in my case. I still have the delay on a fully updated 13.04.

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lightdm pausing a long time at boot

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lightdm package