:: Re: [DNG] Synaptics Touchpad Fn+F9
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Author: Florian Zieboll
To: dng
Subject: Re: [DNG] Synaptics Touchpad Fn+F9
Am 6. Februar 2021 20:10:58 MEZ schrieb Steve Litt
> On Sat, 6 Feb 2021 15:09:33 +0100
> Florian Zieboll <f.zieboll@???> wrote:
> >
> > Hallo Steve,
> >
> > after having had a look at your script and the 'xinput' manpage, I
> > still don't understand, where the information about the device's
> > state is stored.
> I assume it's stored somewhere in xorg.
> >
> > As the current state is preserved between different operating
> > systems: Do I assume correctly, that the touchpad is
> > "stateful" (enabled | disabled) and replacing a disabled one with
> > an identical one from another computer (where it had not been
> > disabled) would restore its functionality?
> You're asking questions beyond my knowledge, but no matter what the
> state, you can always change it. You don't need to replace the
> touchpad.
> Steve

Supposing that "somewhere in xorg" means "under '/etc/X11/' or under
'/usr/share/X11/'", a configuration change definitely would not endure
booting into another OS; under '/proc/' it wouldn't even survive a
reboot (would it even persist over a runlevel change there?!).

The only possibility (which is accessible from within Linux and does
not require a "stateful" touchpad) coming to my mind to make such a
configuration persistent over a reboot AND across different OSes, might
be under '/sys/firmware/efi/' - which would presume a UEFI system.

I am seriously curious about more opinions on this!

NB: Of course, the idea of swapping hardware was only meant to
illustrate the term "stateful".

libre Grüße,