In Linux Mint 17.3 / 18
iwconfig says the power management of my wireless card is turned on. I want to turn it off permanently or some workaround on this issue.
sudo iwconfig wlan0 power off works, until I reboot the laptop.
Also, if I randomly check
iwconfig, sometimes it's on, despite I did run this command.
I read some articles about making the fix permanent. All of them contained the first step "Go to directory
/etc/pm/power.d", which in my case did not exist.
I followed these steps:
sudo mkdir -p /etc/pm/power.d sudo nano /etc/pm/power.d/wireless_power_management_off
I entered these two lines into the file:
#!/bin/bash /sbin/iwconfig wlan0 power off
And I finished with setting proper user rights:
sudo chmod 700 /etc/pm/power.d/wireless_power_management_off
But after reboot the power management is back on.
iwconfig after manually turning power management off
eth0 no wireless extensions. wlan0 IEEE 802.11abgn ESSID:"SSID" Mode:Managed Frequency:2.462 GHz Access Point: 00:00:00:00:00:00 Bit Rate=24 Mb/s Tx-Power=22 dBm Retry short limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=42/70 Signal level=-68 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:2 Invalid misc:18 Missed beacon:0 lo no wireless extensions.
I don't think this question applies only to Linux Mint, it is a general issue of particular wireless adapters.