Keyboard not detected by BIOS/EFI during POST boot sequence

[ocochard]

My nanoKVM full (image version 1.2.0, app version 2.0.6) is able to emulate virtual keyboard once the OS (Windows or FreeBSD) is started, but while in the POST sequence it doesn’t work: I can’t enter in the BIOS menu as example. Tested on:

• HP EliteDesk
• Beelink APU

[n1LWeb]

HP Elitebooks, too can't even enter bitlocker credentials

[Z2Z-GuGu]

We have recently updated version 2.0.7 and attempted to fix this issue. You can update the test on your browser

[ocochard]

Upgraded to 2.0.7 and tested on Intel NUC, and confirmed it works now. Update: Tested back on HP EliteDesk and no improvement.

[n1LWeb]

Still not working on HP Elitebook

[n1LWeb]

I Checked again. If this happens the device will also not work on OS level, so this might be a different issue. If this is happening, then also the HID symbol is not lighting up. Resetting HID from the web ui is not working, too. After Replugging the USB it's working (at least on OS level, didn't check bios level again yet) Is there a way to "simulate" a complete re plugin of the USB Port? Maybe something i can test from the terminal interface? I have this issue on other devices on this machine, too, so it could be that it's not NanoKVM's fault.

[ocochard]

Tested again with (image version 1.2.0, app version 2.0.9) on the same difficult HP EliteDesk: still not able to use keyboard (echap, F10, others) to enter the BIOS. But once booted, the keyboard/mouse were working well with the OS.

[Z2Z-GuGu]

@ocochard Hi, We have added BIOS keyboard test mode in version 2.0.9. Now, you can enable BIOS mode keyboard and mouse by running 'touch/boot/BIOS && reboot '

[OrpheeGT]

@ocochard Hi, We have added BIOS keyboard test mode in version 2.0.9. Now, you can enable BIOS mode keyboard and mouse by running 'touch/boot/BIOS && reboot '

personnaly raised the following issue : https://github.com/sipeed/NanoKVM/issues/50

I tried your BIOS mode, it does nothing. System boot, but keyboard does not work.

messages.log

# cat /sys/kernel/config/usb_gadget/g0/functions/hid.GS0/subclass 
1
# 

[ocochard]

@ocochard Hi, We have added BIOS keyboard test mode in version 2.0.9. Now, you can enable BIOS mode keyboard and mouse by running 'touch/boot/BIOS && reboot '

I’ve tried that, but no change: the BIOS still doesn’t detected the keyboard (but works fine after).

[AkechiShiro]

Could you give more details is your BIOS running in UEFI/UEFI with CSM/Legacy, are there any options about USB devices in your BIOS such as time waiting for external USB devices ? Any diagnostics vs fastboot option?

Let us know exact hardware model of your device + BIOS version/revision and if you're booting in UEFI or Legacy @ocochard

Same for @OrpheeGT

[OrpheeGT]

HP Microserver G7 N54L

Definitively NOT UEFI.

[romainreignier]

I have the same issue on Neousys embedded computers running Insyde UEFI BIOS. Even in GRUB and resetting USB HID. I have also tried with the /boot/BIOS file but there is no change.

https://github.com/user-attachments/assets/5e0f16e6-1dbd-4902-8f81-6b383eabd215

[aka-charos]

I have the same issue on Xeon Glacier Falls W Workstation (UEFI BIOS). If I connect my keyboard on the same USB slot, it works fine.

[romainreignier]

This seems to be a known issue for the PiKVM and ArduinoHID folks.

Sipeed has already added a basic workaround in /etc/init.d/S03usbdev:

if [ -e /boot/BIOS ]
then
    echo 1 > functions/hid.GS1/subclass
fi

But we will need to test more options.

From what I have read, some BIOS:

• do not like the Mass Storage Device
• require a single USB descriptor
• require the USB HIB Boot protocol see Appendix B of the specification (p. 69 of the PDF)

[aka-charos]

obviously the workaround that Sipeed provided does not work :(