From: Matthieu Herrb <matthieu@openbsd.org>
Subject: Re: wayland/libinput-openbsd: other wsmouse devices require fbtab entry
To: uint <unsigned@netcat.uk>
Cc: ports@openbsd.org
Date: Thu, 13 Aug 2026 10:17:34 +0200

On Wed, Aug 12, 2026 at 08:58:53PM +0100, uint wrote:
> Dear OpenBSD ports,
> 
> I've encountered (and resolved) an issue when attempting to use the
> TrackPoint on my ThinkPad T440p in Sway where using it does not seem to
> work.
> 
> After looking at the Sway logs it seemed, other than wsmouse0, none of
> the other mouse devices were able to be opened, leading me to append
> wsmouse1 (which is the device the TrackPoint appears as) to allowed
> devices on ttyC0 in /dev/fbtab.
> 
> 00:00:01.130 [wlr] [backend/session/session.c:331] Failed to open device: '/dev/wsmouse1': Permission denied
> 
> This also means that external mice which take on wsmouse2 or other, may
> not work by default either.
> 
> Because I didn't see any documentation or readme on the libinput
> package, I wanted to know which approach should be taken to let the user
> know of this quirk and where a change could belong.
> 
This is something that is still not 100% settled in libinput-openbsd
support. For now, either add the devices to /etc/fbtab, or manually
change their owner to fit your needs.

In the longer term, libinput-openbsd will be able to use the
/dev/wsmouse mux for all devices.

-- 
Matthieu Herrb