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Re: How to rotate screen AND input (consistently)

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Le sam. 20 nov. 2021 à 13:03, Dan Ritter <dsr@randomstring.org> a écrit :

> riveravaldez wrote:
> > Hi,
> >
> > I'm on Debian 11 in a ThinkPad X220 Tablet (convertible)
> > and I need to rotate the display (both physically and GUI)
> > which I do with:
> >
> > $ xrandr --output LVDS-1 --rotate inverted
> >
> > But then the input (trackpad/mouse, stylus, touchscreen, etc.)
> > doesn't rotate accordingly, so it gets unusable...
>
> Right, because for most cases, rotating a monitor doesn't mean
> picking up your mouse and rotating it, too.
>
> If you've got an external mouse, you'll see that works just
> fine, but that defeats the point of a tablet.
>
> > I've been reading different recommendations online
> > but can't figure out which would be the best/proper/simpler
> > approach to achieve this reliably (that hardware input
> > stays consistent with the GUI in display when rotated).
> >
> > What should I do? Any hint?
>
> I haven't done this, but I believe xinput is going to be your
> friend. It can list devices, list properties, and set whatever
> needs to be set.


    I do something like that. In my script the two corresponding
  lines are:

TOUCHPAD=`xinput --list --short | grep Synaptics | grep -i pointer | sed -e
's/.*id=//' -e 's/[^0-9].*//'`
xinput set-prop $TOUCHPAD 169 0 -1 0 1 0 0 0 0 1

    169 is the "coordinate transformation matrix" for my touchpad.

        Hope this helps,

             Loïc

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Thread

How to rotate screen AND input (consistently) riveravaldez <riveravaldezmail@gmail.com> - 2021-11-20 07:50 +0100
  Re: How to rotate screen AND input (consistently) Dan Ritter <dsr@randomstring.org> - 2021-11-20 13:10 +0100
    Re: How to rotate screen AND input (consistently) David Wright <deblis@lionunicorn.co.uk> - 2021-11-20 17:20 +0100
    Re: How to rotate screen AND input (consistently) Loïc Grenié <loic.grenie@gmail.com> - 2021-11-20 17:20 +0100
    Re: How to rotate screen AND input (consistently) riveravaldez <riveravaldezmail@gmail.com> - 2021-11-21 02:20 +0100

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