#63 USB Keyboard does not work with Libreboot 20211122

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opened 4 days ago by Rydia · 3 comments

Libreboot 20211122 (GRUB rom) has issues with USB keyboard.

When using the arrow keys with the USB keyboard, it has no response.

Sometimes Libreboot will fail to boot with 'Unknown key 0xff detected' error message flooding the screen with USB keyboard plugged in.

Tried with 2 keyboards and both have the same issue.

Libreboot 20211122 (GRUB rom) has issues with USB keyboard. When using the arrow keys with the USB keyboard, it has no response. Sometimes Libreboot will fail to boot with 'Unknown key 0xff detected' error message flooding the screen with USB keyboard plugged in. Tried with 2 keyboards and both have the same issue.
Wei Mingzhi commented 4 days ago
Poster
video of the bug: https://www.youtube.com/watch?v=mH7mCW-sFJk
Leah Rowe commented 2 days ago
Owner

try this:

edit the grub.cfg in your rom. see this line:

terminal_input --append at_keyboard

add a new line after, and add this:

terminal_input --append usb_keyboard

you can do this by following the guide:

https://libreboot.org/docs/gnulinux/grub_cbfs.html

tell me if this fixes the problem

try this fix first and we'll go from there. good luck!

try this: edit the grub.cfg in your rom. see this line: `terminal_input --append at_keyboard` add a new line after, and add this: `terminal_input --append usb_keyboard` you can do this by following the guide: <https://libreboot.org/docs/gnulinux/grub_cbfs.html> tell me if this fixes the problem try this fix first and we'll go from there. good luck!
Wei Mingzhi commented 11 hours ago
Poster

added terminal_input --append usb_keyboard

Seems the issue is fixed if I plug in the keyboard before powering on the laptop with that line.

If I plug in the keyboard after powering on the laptop in the GRUB screen, libreboot GRUB would still flood the screen with the 'unknown key 0xff detected' error message.

added terminal_input --append usb_keyboard Seems the issue is fixed if I plug in the keyboard _before_ powering on the laptop with that line. If I plug in the keyboard _after_ powering on the laptop in the GRUB screen, libreboot GRUB would still flood the screen with the 'unknown key 0xff detected' error message.
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