|Lenovo (laptops, excl ThinkPads)||F2 or FN+F2|
|Lenovo (ThinkPads)||Enter, followed by F1|
|Dell||F2 or F12|
|HP||F1, F10 or DEL|
|ASRock||F2 or DEL|
|Acer||F2 or DEL|
|Gigabyte||F2 or DEL|
If your wifi card is not available after booting your Dell XPS-15 laptop (with Ubuntu 20.04 or 22.04), or your external monitor refuses to display anything, please try the following:
start up your laptop without your power supply plugged in, connect with wifi, and/or your external monitor and only then plug in your power supply.
This fix works everytime for me.