[Wayland-bugs] [Bug 85632] Improve pointer acceleration for high-resolution mice

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85632

--- Comment #3 from Peter Hutterer <peter.hutterer at who-t.net> ---
libinput's config APIs are for run-time changes of user-specific settings. I
don't think DPI really falls into that category, it's a HW property, even when
it's variable. So it looks like we need _some_ API to change it (udev
properties?), I'm not yet convinced that a proper API is needed.

What could work for those devices is to mark them as variable resolution and
pick one resolution as the default. This also replicates the functionality as
advertised by the vendor that changing the resolution changes the speed of the
mouse.

Maybe something like LIBINPUT_MOUSE_DPI="800" for a normal mouse and
LIBINPUT_MOUSE_DPI="v800" for variable resolution.

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