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Debian 9.9 - Issue with T480 touchpad

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  Debian 9.9 - Issue with T480 touchpad Laurent Dumont <laurentfdumont@gmail.com> - 2019-05-01 07:30 +0200
    Re: Debian 9.9 - Issue with T480 touchpad Laurent Dumont <laurentfdumont@gmail.com> - 2019-05-01 15:30 +0200

#208006 — Debian 9.9 - Issue with T480 touchpad

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Hi,

I have been fighting an issue with a T480 touchpad. I am experiencing the
following problems.

- If a recover from a sleep/Hibernate - the left click stops working on the
touchpad. I can plug in a USB mouse but I have the same symptoms.
- I can use "sudo modprobe -r psmouse && sudo modprobe psmouse" and that
seems to restore the right click emporarly.
- It looks like the left key is "stuck" as it will get stuck on the Lock
Screen drag and random elements being dragged around.

I have tried with both the libinput and the Synaptic drivers without any
changes.

Is there anything else I could try?

Thanks!

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#208012

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Hi Thorsten,

Just for kicks, I've upgraded to Buster without any change. It's a dual
boot machine and I've noticed that if I go go from a cold start to Debian,
the touchpad works correctly.

But if I boot up and go into sleep, then the trackpad behavior is
unpredictable. I can't left click and the double finger tap stops working.

Really strange...

On Wed, May 1, 2019, 3:56 AM Thorsten Nicklaus <nicklaus.th@posteo.de>
wrote:

> Hi,
>
> for me on my T480s there is no problem. I use debian 10 buster. Is it
> possible that you upgrade to this release?
>
> regards
>
> On 01.05.19 07:23, Laurent Dumont wrote:
> > Hi,
> >
> > I have been fighting an issue with a T480 touchpad. I am experiencing
> > the following problems.
> >
> > - If a recover from a sleep/Hibernate - the left click stops working
> > on the touchpad. I can plug in a USB mouse but I have the same symptoms.
> > - I can use "sudo modprobe -r psmouse && sudo modprobe psmouse" and
> > that seems to restore the right click emporarly.
> > - It looks like the left key is "stuck" as it will get stuck on the
> > Lock Screen drag and random elements being dragged around.
> >
> > I have tried with both the libinput and the Synaptic drivers without
> > any changes.
> >
> > Is there anything else I could try?
> >
> > Thanks!
>

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