[Bug 349221] [NEW] high system load, mouse clicks unresponsive after resume from suspend

[James]

Public bug reported:

For the last week or so, Kubuntu desktop has been unresponsive after
coming back from suspend.

Symptoms:
* keyboard works ok
* desktop does not respond to mouse clicks (menu button, right click anything, anything in the panel)
* applications can be started normally using keyboard
* the only mouse action that works is dragging the KDE Twitter plasmoid around the desktop (maybe other plasmoids ?)
* extremely high system load immediately after coming back from suspend
* when I check top a load of 18 or so is seen, rapidly decreasing... no apps consuming massive system resources so it might be a minor thing that triggers load then stops.

Workaround
* Ctrl-Alt-backspace to restart X and log in again. system is then fully responsive.

I've attached a  load chart over the last 3 days (the second load spike
above Wed 12 is not related to this issue).

Packages installed over the last 10 days:
2009-03-17 09:43:08 status installed man-db 2.5.2-2
2009-03-17 09:43:09 status installed libavutil49 3:0.svn20080206-12ubuntu3.1
2009-03-17 09:43:09 status installed libavformat52 3:0.svn20080206-12ubuntu3.1
2009-03-17 09:43:09 status installed libavdevice52 3:0.svn20080206-12ubuntu3.1
2009-03-17 09:43:09 status installed libswscale0 3:0.svn20080206-12ubuntu3.1
2009-03-17 09:43:09 status installed ffmpeg 3:0.svn20080206-12ubuntu3.1
2009-03-17 09:43:09 status installed libglib2.0-0 2.18.2-0ubuntu2.1
2009-03-17 09:43:09 status installed libglib2.0-dev 2.18.2-0ubuntu2.1
2009-03-17 09:43:09 status installed libgstreamer-plugins-base0.10-0 0.10.21-3ubuntu0.1
2009-03-17 09:43:09 status installed libpostproc51 3:0.svn20080206-12ubuntu3.1
2009-03-17 09:43:09 status installed linux-libc-dev 2.6.27-14.30
2009-03-17 09:43:09 status installed libc6 2.8~20080505-0ubuntu9
2009-03-17 14:10:09 status installed man-db 2.5.2-2
2009-03-17 14:10:10 status installed kdebase-workspace-libs4+5 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed kdebase-workspace-dbg 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed libkdecorations4 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed libkwineffects1 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed kde-window-manager 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed kdebase-workspace-data 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed kdebase-workspace-bin 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed kdm 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed klipper 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed ksysguard 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed ksysguardd 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed kwin 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed systemsettings 4:4.2.1a-0ubuntu1~intrepid3
2009-03-17 14:10:10 status installed libc6 2.8~20080505-0ubuntu9
2009-03-19 00:30:03 status installed libnss3-1d 3.12.0.3-0ubuntu5.8.10.1
2009-03-19 00:30:04 status installed libc6 2.8~20080505-0ubuntu9
2009-03-19 23:26:34 status installed man-db 2.5.2-2
2009-03-19 23:26:35 status installed doc-base 0.8.16
2009-03-19 23:26:37 status installed bzr 1.13-2~bazaar1~intrepid1
2009-03-20 16:13:05 status installed libjasper1 1.900.1-5ubuntu0.1
2009-03-20 16:13:05 status installed libjasper-dev 1.900.1-5ubuntu0.1
2009-03-20 16:13:05 status installed libc6 2.8~20080505-0ubuntu9
2009-03-24 20:08:26 status installed man-db 2.5.2-2
2009-03-24 20:08:27 status installed libgs8 8.63.dfsg.1-0ubuntu6.3
2009-03-24 20:08:28 status installed ghostscript 8.63.dfsg.1-0ubuntu6.3
2009-03-24 20:08:28 status installed ghostscript-x 8.63.dfsg.1-0ubuntu6.3
2009-03-24 20:08:28 status installed liblcms1 1.16-10ubuntu0.2
2009-03-24 20:08:28 status installed liblcms1-dev 1.16-10ubuntu0.2
2009-03-24 20:08:29 status installed libc6 2.8~20080505-0ubuntu9


I wonder if it's related to the recent kde-base-workspace update ?

** Affects: kdebase-workspace (Ubuntu)
     Importance: Undecided
         Status: New

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high system load, mouse clicks unresponsive after resume from suspend
https://bugs.launchpad.net/bugs/349221
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