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Desktop Effects Power Consumption

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Software

I recently installed the KDE4 version of Kubuntu on my laptop using the Wubi installer and was able to start using KWin's desktop effects on my laptop for the first time.

After installing KDE4.1 beta 1 I started to get curious about battery life. I had heard that Vista's 3D desktop decreased battery life and wondered if KWin did the same.

My tools for testing power draw were Powertop and an applet called KPowersave. Powertop reports a power estimate and processor states and what processes cause the most wake events. KPowersave reports the number of milliwatts being drawn from the battery and provides a reasonable comparison point. It also allow you to set power management profiles and monitor battery status and real time CPU frequency.

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