BitLocker PIN entry fails - Mouse and keyboard stop responding during PIN input

[dnlw07]

Mouse and keyboard become unresponsive when attempting to enter the BitLocker PIN at pre-boot authentication screen.

[duzefu]

We have received more than one similar report, but the issue is that we cannot reproduce it ourselves.

[dnlw07]

I have noticed that when I turn microphone off, the app get reconnected and I get access to the keyboard. Mouse is still inactive.
The error might be linked with the following issue: pikvm/pikvm#1574.

As I understand, due to Bitlocker's bug there is limited amount of devices that can be active. It might be necessary to create workaround by adding some toggle button to temporarily turn off all devices except of mouse and keyboard.

when mic is ON:

when mic is OFF:

log example:

Jan  3 09:07:34 glkvm daemon.debug kvmd: kvmd.plugins.hid.otg.device      DEBUG --- HID-keyboard is busy/unplugged (write select) [32 times]
Jan  3 09:07:36 glkvm daemon.debug kvmd: kvmd.plugins.hid.otg.device      DEBUG --- HID-mouse is busy/unplugged (write select) [128 times]

logs mic ON:
system_logs_20260103_091009.zip

logs mic OFF:
system_logs_20260103_092712.zip

[duzefu]

I understand. We will prioritize developing a switch function that does not require rebooting.