Background and Problem
My laptop (Lenovo ThinkPad
X131e 3372-2VU, running Ubuntu 12.04 LTS) freezes when Ubuntu tries to manage the wireless interface's power.
I had to manually disable wireless power management to prevent the freezes, and it never happens ever since I did.
However, now I use
jupiter in order to save battery while not on AC power, and it seems that wireless power management is back on, and the system freezes started happening again.
Is there a way to configure
jupiter to not manage wireless interface power? Or is it enough to just disable the power management manually (i.e.
jupiter won't turn it back on again)?
jupiter applet has been doing an excellent job otherwise. It has literally doubled my laptop's battery life. So I'd much rather have
iwconfig on boot would show the following, even after manually setting wireless power management off (
sudo iwconfig eth2 power off) before rebooting or shutting down:
eth2 IEEE 802.11abg ESSID:"287LyonSt." Mode:Managed Frequency:2.437 GHz Access Point: F8:D1:11:9B:89:81 Retry long limit:7 RTS thr:off Fragment thr:off Power Management:on
Thanks in advance.