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Meatweasel avatar Ubuntu

Unable to re-enable wifi

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Meatweasel

Context: I'm running ubuntu 18.04.2. I went to some effort to configure headless remote access to this machine, unfortunately one of the side effects of the xorg.conf changes is that I now don't get output to a monitor nor can I use the mouse and keyboard on my install with a monitor plugged in. But I had remoted in and everything was going swell - until I thought I had better shut off wifi power saving. Well, the woefully labelled toggle wasn't wifi power saving, it shut off wifi. Now I'm locked out. I tried plugging a lan cable in and for some reason I still couldnt connect, but I had never tested the onboard lan drivers so they may be screwed. I can boot from livecd fine though - my question is:

How can I set my main installations wifi to be enabled again, using the livecd instance? I can get to the primary instance filesystem from the livecd - does anyone know where the settings for wifi enablement live on the filesystem? obviously commands on the livecd are not persistant - but surely the setting for the wifi on/off toggle is set in some config file somewhere?

All my googling for this issue just shows a lot of stuff about enabling wifi on the livecd instance, which doesn't help me. I dont want to reinstall as getting my installation to this point was a lot of work.

Any help is appreciated!

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Someone avatar
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Someone
[This answer may help](https://askubuntu.com/a/1370463/1460940)
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darth_epoxy avatar
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darth_epoxy
Headless does mean headless. I assume you can still terminal in so what is the output of `lspci -knn | grep Network -A3` please? Edit your question and add it to the bottom.
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Meatweasel avatar
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Meatweasel
I can access only SSH on the Livecd, as my main install doesn't have connectivity. I'll give that a go from the livecd and add that info this afternoon.
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