Re: Lenovo Yoga 700-11ISK touchscreen

[Alexey Kardashevskiy <aik ozlabs ru>]

On 3/18/18 4:29 AM, Carlos Garnacho wrote:
> Hi!,
>
> On Sat, Mar 17, 2018 at 2:49 PM, Alexey Kardashevskiy <aik ozlabs ru> wrote:
> > Hi,
> >
> > Fedora 27, Gnome desktop 2.32, gnome 3.26.2, kernel 4.15.8-300.fc27.x86_64.
> > Lenovo Yoga 700-11ISK, ELAN touchscreen, Synaptic touchpad.
> >
> > The yoga is a convertible laptop which I am trying to use as a tablet but
> > it is confusing. I'll describe these and hopefully you can give me some
> > pointers what is a bug and what is a feature :)
> >
> > 1. when switched to a tablet, the keyboard gets disabled (good) but the
> > touchpad is not.
>
> The keyboard being disabled is something with Yoga models. Other
> 2-in-1s are smart enough to also disable the touchpad, and some
> disable nothing.
>
> We have https://bugzilla.gnome.org/show_bug.cgi?id=744036 open to
> track/expose SW_TABLET_MODE state, which may be used to implement such
> behavior on software. But arguably this could belong on libinput,
> which has a better grasp of the devices to be disabled and their
> topology.

Ok, thanks, I'll look into that. Quick question - is that libinput
scriptable or I need to recompile it anyway?

> > 2. the touchscreen seems not to understand multitouch at all so it also
> > does not allow scrolling most of the time. If it is firefox or a terminal -
> > moving finger over the window selects text. No two finger scrolling is
> > possible (enabled and works with the touchpad).
>
> Ultimately, reaction to (multi)touch is implemented by each specific
> application. Any issues there should thus be reported on each
> application bug reporting system. NB, such issues are very probably
> already filed, so look out for duplicates.

Is this different from touchpad? I am asking as the touchpad settings are
system wide and it works the same everywhere but there is no such control
over the touchscreen behaviour and I wonder why... I expected touchpad and
touchscreen to share same settings or each to have own settings and neither
seems to be the case.


> > 3. touchscreen tapping on a task in the taskbar does not bring it up, I can
> > see gnome notices the click but it still does nothing. Tapping on the
> > touchpad works, clicking left button on the touchpad works, so it only
> > touchscreen problem.
>
> This should be reported on the specific gnome-shell extension
> providing the taskbar, if this is the "Window list" extension, that'd
> be https://gitlab.gnome.org/GNOME/gnome-shell-extensions/issues/

Ok!

> > 4. Orientation sensor - when enabled, constantly rotates the screen.
> iio-sensor-proxy is in charge of reading accelerometer orientation,
> some of the opened issues at
> https://github.com/hadess/iio-sensor-proxy/issues might fit your
> model, if not file a new one.

I did that already actually. This thing stays silent for a while and starts
sending events constantly, may be a hardware problem.


-- 
Alexey