My keyboard and mouse are plugged into a seven-port USB hub. That hub is plugged into my PC.
My PC runs Arch and Windows 10. When I boot up, I can use my keyboard and mouse in my motherboard's BIOS menu, or to select Windows 10 at the bootup menu. If I select Windows 10, I can use the keyboard and mouse just fine when my PC boots to that OS.
But if I select Arch, my keyboard and mouse do not work once the PC boots to the desktop login screen.
But when I plug the keyboard and mouse directly into my PC, they work on Arch.
When I log into my desktop environment, KDE Plasma, and run
lsusb in terminal, I see the USB listed.
Before a few days ago, when I updated all my installed packages, there was no issue. But now there is. Why?