Public bug reported:

Binary package hint: kdebase-workspace

Setup:
Dell Vostro 1500, Core 2 Duo
Installed Hardy alpha 6, KDE4

To save someone 5 minutes of head scratching, I'll repeat: that's KDE4,
not KDE3. However, looking through the /etc/init.d/kdm script, I see
references to kde3, so not sure ... Konquerer->About reports 4.0.2, but
that's /etc/init.d/kdm, not kdm-kde4.  I'm confused.

Symptom: top reports kdm as using 99% of a cpu core, system fan turns
on, noise annoys

Not sure how to reproduce, but I noticed it after researching/preparing
https://bugs.launchpad.net/ubuntu/+source/kdebase-workspace/+bug/204136
.  This bug may also be related to the xorg Alt+Tab bug
(https://bugs.launchpad.net/ubuntu/+source/kdebase-
workspace/+bug/198524).  Don't know, kdm vs xorg.

Expected behavior: with no heavy graphical activity, kdm should drop to
almost 0% cpu/core utilization.

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

-- 
kde4 kdm uses 100% of a cpu core
https://bugs.launchpad.net/bugs/204147
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