Sanagi

> I think this BIOS feature doesn't have a breaking side-effect If PRK did not enter Report mode, features except Keyboard don't work. So I did checks. > It looks...

Update: I found BIOS mode doesn't works on Hewlett Packard Z2 workstation (while the mode works on Lenovo ThinkPad X220 and FUJITSU FUTRO MS836). And I found HP's BIOS requests...

I found HP's BIOS ignores keyboard with MSC class. So for those environment, `build_with_keymap` is needed. I made a implementation for HP's BIOS. ( https://github.com/yswallow/prk_firmware/releases/tag/0.9.17-bios ) Can you try this...

> this uf2 takes over the keymap.rb Right. > But It also didn't work on BIOS. Mmm... too difficult...

Although, it sends long-press keycode on UP after a long-press (not at the set time), ```ruby kbd.define_mode_key :SHORT_A_LONG_1, [ Proc.new { kbd.send_key(:KC_A) }, Proc.new { kbd.send_key(:KC_1) }, 500, nil ]...

I tested building PRK on debian buster (same to the docker image) on local machine, the built UF2 is working …..

@hasumikin Debian buster on x86_64, and I did not use docker.

Sorry for my poor expression. I want to say the problem may related on the docker application, and may not related on the guest OS.

Sorry again, in my mistake, the `ruby` docker image is `debian bullseye`. So I tested `bullseye` on my physical machine, the built UF2 **Failed**. So this problem is related on...

Oh... It reproduced on mine. I tested now, version `0.9.14` commit 91d43a was worked by using `3.1.2-slim-buster`, but after `0.9.15` was not worked. How about using Manjaro Linux image? https://github.com/yswallow/prk_firmware/blob/docker-manjaro/Dockerfile