Ubuntu
unity-greeter package

short lag between greeter starting and interface being responsive

Bug #969627 reported by Krzysztof Klimonda
26
This bug affects 5 people
Affects Status Importance Assigned to Milestone
unity-greeter (Ubuntu)
Confirmed
Low
Unassigned

Bug Description

After boot, when unity-greeter starts there is a short pause (few seconds) when I can't enter my password - or rather when the widget doesn't refresh (because after the pause I can see password entered). I guess there is something hammering either disk or gpu/cpu happening at this time but I'm not sure how to debug it (maybe bootchart? I'll try tomorrow)

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity-greeter 0.2.6-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-20.33-generic 3.2.12
Uname: Linux 3.2.0-20-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0-0ubuntu1
Architecture: amd64
Date: Fri Mar 30 23:41:01 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120125)
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity-greeter
UpgradeStatus: No upgrade log present (probably fresh install)

Revision history for this message
Krzysztof Klimonda (kklimonda) wrote :
Revision history for this message
Launchpad Janitor (janitor) wrote :

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

Changed in unity-greeter (Ubuntu):
status: New → Confirmed
Revision history for this message
Hernando Torque (htorque) wrote :

What does `time xrandr` report for you? There has been a bug where port probing took long and caused such a lag (bug 855124).

Revision history for this message
Krzysztof Klimonda (kklimonda) wrote :

No, it doesn't look like xrandr is an issue, as the "time xrandr" is pretty much instantaneous

Matt Fischer (mfisch)
Changed in unity-greeter (Ubuntu):
importance: Undecided → Low
Revision history for this message
Piotr Kołaczkowski (pkolaczk-u) wrote :

I got it both in 12.04 LTS, when using nvidia prioprieary drivers, as well as with 12.10 which switched to bumblebee and is using mesa by default. So this is probably not a graphics driver issue. In 12.10 that lag seems to be longer, but that may be just by accident that mesa graphic drivers are faster to initialize - the time to switch from the splash screen to login screen is very short now.

This bug is very bad because it affects first impression. I wanted to show ubuntu to some of my friends (especially how fast it loads), but that lag ruins the good first impression totally. :)

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