I'm running the Live version of Ubuntu 18.04 from an external drive and i need it to run continuously. I've already set it to never lock correctly but the WiFi turns of after some time.

I have tried to change the option "Turn-off WiFi to save power" but when I do that the system goes to airplane mode. If a turn on WiFi the option "Turn-off WiFi to save power" sets itself back to on.

Any solutions to this problem?

Thanks in advance.

1 Answer 1


If you create a Live version of Linux with "persistence" (Unetbootin, MultiSystem, etc...) then you can make changes that will persist even after rebooting. Otherwise, you can fully install Linux to a USB stick or USB drive which is more secure.

Easy Linux Tips Project: Speed Up your Mint!

When WiFi Power Management is on, proceed as follows.

In order to prevent typo's, copy/paste this line into the terminal (it's one line!):

sudo -i gedit /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf

Press Enter.

Now a text file opens. In that text file, you see the following content:

wifi.powersave = 3

Change 3 into 2.

Save the modified file and close it.

Reboot your computer.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.