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‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Friday, February 5, 2021 11:12 AM, Florian Zieboll via Dng
<dng@lists.dyne.org> wrote:
> Am 4. Februar 2021 20:13:49 MEZ schrieb g4sra g4...@protonmail.com:
>
> > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> > On Thursday, February 4, 2021 6:59 PM, Florian Zieboll via Dng
> > dng@lists.dyne.org wrote:
> > Thanks for the reply Florian
> >
> > > Am 4. Februar 2021 18:15:06 MEZ schrieb g4sra via Dng dng@lists.dyne.org:
> > >
> > > > Does anyone know how to re-enable a Synaptics Touchpad in Linux after
> > > > it has been turned off in Windows using Fn+F9 ?
> > >
> > > If this key combo really changed something "in hardware", i assume that a
> > > "hard reset" of the notebook(?!) should solve the issue...
> > > Usually, this is accomplished by removing all power sources and
> > > periphery, and then holding down the power button for 15-20 seconds. The
> > > idea is to remove any stored electricity (from ac adapter, battery,
> > > capacitors) to clear all non-persistent storage.
> >
> > That is what googling said too, unfortunately it didn't work.
> >
> > > Your devices miles may vary, the manual should mention it.
> >
> > The manual is not much use at all, being digital it won't even serve
> > purpose in the WC.
> >
> > > libre grüße,
> > > Florian
> >
> > By first installing Windows 7 and then the Synaptic drivers on an old HDD I
> > was able to restore touchpad functionality with the Fn+F9 switching. This
> > is a programmable multi-gesture touchpad which I guess may have flash
> > memory.
> > There has got to be a better way....
>
> Hallo g4sra,
>
> as you replied off-list and I don't know of any better way, I bring the issue
> back to the list:
Thanks for that. This email client will not reply to the list. It considers to
do so a security issue because of an authentication failure. If I post directly
to the list then the message thread is lost.
I have tried something new.. it will allow me to CC, so I have done that
replying directly to you, deleted the To, and promoted the CC, so if the
message id has remained intact this may be a way around the problem.
> Perhaps someone has a hint on resetting the device, if you'd reveal its make
> and model?
Laptop make is mostly irrelevant as the hardware is self-contained as
manufactured by Synaptics. I believe the communication is SMBus in this
instance, I know of no way to interrogate the touchpad itself other than by
what is reported using Synaptics drivers for Windows.
>
> Another idea out of thin air: Did you remove the CMOS battery - or does the
> notebook provide a button (or pins) to reset the bios password?
>
Yes, I did a thorough cold power-up.
> libre Grüße,
> Florian
>
I am looking for a 'Linux software' solution to this problem.
Currently grepping the kernel source to see if any giveaways in the DTB sources.
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