Question

6

Manually re-enable wireless and bluetooth

rated 0 times [ 6] [ 0] / answers: 1 / hits: 29819 / 3 Years ago, fri, september 10, 2021, 7:56:18

So, today, I decided to turn off bluetooth to save battery power. When I did so, it did everything like normal. Whatever. But whenever I want to re-enable Wifi and Bluetooth, it just has "Enable Wireless" and "Enable bluetooth" grayed out in the respective things on the top-right of the desktop. I am using 12.04 Precise Pangolin on a Dell laptop that has never had wireless problems before. Clicking the grayed-out part does nothing. Re-logging and restarting has no effect, and I'm on an account that has full administrative permission.

My attempts:

~$ sudo dmesg | grep wlan0

[19.960211] ADDRCONF(NETDEV_UP): wlan0: link is not ready

.

~$ sudo dmesg | grep blue

[[nothing]]

What do I do to manually re-enable wireless and bluetooth?

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soahan

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answered 3 Years ago eryeath · Accepted Answer

I found that under my "Bluetooth settings", I couldn't click anything and it said it was disabled by hardware switch.

So, I looked at my keyboard, and there's kind of this radio tower over "F2" in the color of the FN button. So I pressed FN-F2 and it re-enabled wireless and bluetooth.

I don't even remember pressing that button ever before, but I pressed it, and it worked.

Future viewers: If you see that your wireless AND bluetooth are disabled, and you're on a laptop, press FN-(wireless button, for example mine was F2). This will likely solve your problems.

What a simple solution. Really surprised this solution hasn't come up in any other Ask pages I've seen so far.

If this doesn't work, try the console commands:

sudo service wireless start

sudo service bluetooth start

as those returned neutral or favorable results for me, regardless of the button being down or not.