Use keyboard via Thunderbolt in the boot process / enter LUKS password

Ask Fedora
1

Hey,

I just switched over to Fedora 44 (from Arch) and I’ve found just one problem that I can’t solve on my own:

My keyboard is connected to a Thunderbolt dock (Lenovo 40AN). I’m using a ThinkPad T14 Gen 3 (Intel), and it seems I can’t adjust the Thunderbolt security level in the UEFI. The dock isn’t authorized during the boot process, when I have to enter the LUKS password. Connecting the keyboard directly to USB is a workaround, but it would be nicer if it just worked right away.

Does anyone here have a tip for me?

Thanks and cheers, Tobi

2

Wild guess: in the BIOS is fast boot enabled?
Maybe you can turn that off and see if the keyboard shows up.

Not sure what a "Thunderbolt security level " is.

3

Jep, it’s also new to me. Here is a site, announcing a solution, which is not working at my laptop: USB Keyboard Not Working in Dracut When Connected via Thunderbolt Dock – Guy Rutenberg

The keyboard itself is working fine inside the bios/uefi (and with any live usb image). Only in the timeframe to type the LUKS password in, it’s not working…

4

Without a way to test this myself I’m not able to offer more help.
Maybe someone else will know what might help?