Received update to antergos KDE today (last update was performed yesterday). It was fine, but several minutes later, keyboard started lagging badly. It was super-slow to respond, and recognized only about 1 out of 5 keystrokes. A moment later, it stopped working at all. Since it wasn’t 1st time I experience keyboard issue with antergos (but it worked well on Win7 years ago), I got pi**ed and thought keyboard just dead after long use, so I fixed it for good with my fist.
After cleaning all the mess, connected another wireless keyboard, and it didn’t work too. No single keystroke recognized. My idea was that new keyboard uses new receiver, so I have to reboot OS, which I did. Unfortunately, I couldn’t even enter LUKS startup password because keyboard didn’t work. Rebooted again and found that keyboard works great in BIOS and boot menu itself, and stops working the same second I select “Boot Antergos” option. Repeated 6 times/reboots, same result.
Now, I was able to get it working by selecting “Fallback” option in boot menu (LTS option didn’t help), but obviously it’s not a proper fix. Any suggestions?