Comment 0 for bug 118808

Binary package hint: linux-source-2.6.22

While using GUTSY daily build 05-JUN-2007, with powertop 1.5 installed, I noticed that my computer was in the C2 power-saving state for an average of 95%+ of the time, and was not able to reach the battery-friendly C3 and C4 states. After some experimentation, I realized that this problem was caused by the wireless interface just being up, **even when not associated to any Access Point**. Just issuing 'ifconfig ath0 down', or disabling wireless in the Network Manager applet, would allow the computer to reach C3/C4 just fine, increasing my battery time significantly.

My laptop is an Acer 3624, with a built-in Atheros Wi-fi Card.

# uname -a
Linux ubuntu 2.6.22-6-generic #1 SMP Fri Jun 1 19:24:12 GMT 2007 i686 GNU/Linux