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Force libinput Device Driver in Wayland (sh.itjust.works)

submitted 1 month ago* (last edited 1 month ago) by [email protected] to c/[email protected]

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I have an issue on my Lenovo Laptop where the Lenovo Active Pen 2 under Arch / CachyOS with GNOME on Wayland always recognises the eraser as pressed. While this is probably a libinput issue, I can’t wait for possibly months to get a fix on that side. While I will report this issue to them, I would like to fix the problem intermediately.

This was never a problem under Fedora with GNOME on Wayland. I think the problem might be that libinput on Arch loads the Wacom driver, while Fedora probably just fell back to the generic libinput driver. I got that idea because in GNOME settings my screen now is configurable in the Wacom settings, that never was the case on Fedora.

I stumbled across this thread, however, that is not viable in Wayland any more since there is no config file available for libinput. Is there any way I can force the libinput driver for the “Wacom HID 52C2 Pen” device under Wayland, while GNOME is not specifically exposing this setting?

Any pointers would be greatly appreciated :)

Edit: Scratch all that, I just tried the live ISO for Fedora 41 and found out it's not related to Arch. After some trial, it seems like this might actually be an issue with the 6.11 Kernel. After downgrading to 6.10.10 everything works fine again. I guess my new question is now where would I report this? Is this still a libinput or a Kernel upstream issue?

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[–] [email protected] 3 points 1 month ago (1 children)

If downgrading the kernel fixes it then it sounds a lot like a kernel bug. Still worth reporting to libinput I guess, they'll probably be of better help to report it to the kernel properly with details of what broke, if it ends up that way.

If you really want to get involved you can also bisect the exact commit that caused it in the kernel, but that's a lot of kernel compiling and rebooting ahead of you.

[–] [email protected] 1 points 1 month ago

I looked at some info for reporting this to the kernel developers but the process is too complicated at the time. I'm currently a bit short on time but I did report it to libinput, maybe they can give pointers where exactly to report this.