I have this weird issue with Fedora 31 and thought you guys might be able to help. I use an old laptop with a disconnected display and usually use ssh and vnc do get the jobs I need done.
However, after upgrading to Fedora 31 I noticed that the notebook was suddenly unreachable, but restarting solved the issue.
At first, I thought it wasn’ properly connected to the power outlet (the battery is dead), but everything was fine. I then figured that the upgrade might have borked my energy saving settings (e.g. sleep mode) and had a look at that. There I noticed the toggle that said something like “allow wifi disconnect to save power” being enabled.
When I toggled the button the notebook became unresponsive and several power-button restarts didn’t solve the issue.
I have now connected the notebook to my TV via HDMI, but xrandr complains
Can't open display. Both wifi adapter (I have two, the notebook’s one and a USB one. I do not need the notebook one) were disabled. One I disabled a long time ago, but I did not intentionally disable the other one.
icfonfig <wifi-adapter> up which enabled the adapter, but it didn’t seem to connect to my WiFi…
Any ideas on how to get it working again?