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clearloon

Member

Registered: 2009-01-07

Posts: 79

[SOLVED] Power management causing wireless slow down

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SOLUTION:

The solution was to turn off Power Devil: System Settings -> Advanced -> Service Manager.

I'm not using a laptop so this was fine for me. Worth noting that power management for wireless is *not* an option that I could see under Power Management in System Settings.

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Hi -

I could really do with some help.

I have an rt2x00 based wireless card and by default, the 2.6.34 kernel seems to switch power management on. This causes huge slow-downs (ping times of 15+ seconds) so I'd like to have power management switched off permanently (i can temporarily switch it off with "sudo iwconfig wlan0 power off").

Things I have tried are:

Adding these lines (separately) to /etc/rc.local:

iwconfig wlan0 power off
/usr/sbin/iwconfig wlan0 power off

Adding these lines (separately) to to /etc/network.d/mywirelessnetwork

POST_UP="/usr/sbin/iwconfig wlan0 power off"
POST_UP="iwconfig wlan0 power off"

None of this is working.

Any ideas why these wouldn't work?

Thanks,

cl

Last edited by clearloon (2010-08-19 17:56:15)

clearloon

Member

Registered: 2009-01-07

Posts: 79

Re: [SOLVED] Power management causing wireless slow down

Ok further investigation shows that I was wrong - it turns out power management *is* off when wlan0 is brought up, but it's being switched *on* when I move from tty1 to tty7 which in my case, means when KDE launches.

Stumped now...