Comment 4 for bug 16451

I can confirm this bug!

Random messages pop up saying "Display changed: LCD off" or "Display changed: LCD on ".

Furthermore, /var/log/syslog is full of following messages:

Asus ACPI: Error reading brightness
Asus ACPI: Error reading LCD status

The messages popup so frequently that the laptop is not usable at all. This is a showstopper as a common user would not be able to turn the culprit off and would give up soon on Kubuntu.

Kmilo seems to be the causing factor and can be turned off as described here:
http://de.wikibooks.org/wiki/Asus_W3N-Kompendium:_Kubuntu

This bug is also know in the KDE bug repository (no 102374):
http://bugs.kde.org/show_bug.cgi?id=102374

Also the ubuntuforum knows about it:
http://ubuntuforums.org/archive/index.php/t-21808.html

My Hardware:
Laptop ASUS T9400

My Software:
Stock Kubuntu Breezy (KDE 3.4.3). Ugraded from Kubuntu hoary.