<div dir="ltr"><div><div><div><div>Hello Peter <br><br>I appreciate your reply. I am not sure we are talking about the same thing so I have uploaded a video to youtube showing the problem i am experiencing<br><br></div>If anyone is interested you can find it here <a target="_blank" href="http://youtu.be/n8N0NnB9u7g">http://youtu.be/n8N0NnB9u7g</a><br><br></div>are you saying the pointer position can be corrected with a client app or can it only be fixed in X.<br><br></div>Thanks<br><br></div>Dan<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 21, 2015 at 2:41 AM, Peter Hutterer <span dir="ltr"><<a href="mailto:peter.hutterer@who-t.net" target="_blank">peter.hutterer@who-t.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Mon, Apr 20, 2015 at 05:21:44PM +0100, Daniel Harris wrote:<br>
> I am assuming that it is a limitation that a stylus cannot map it position<br>
> to a physical screen and a larger virtual screen at the same time. I<br>
> currently have panning in the virtual screen but calibration is way off on<br>
> the physical screen. I am assuming no mathematical wizardry with the<br>
> current setting can rectify this.<br>
<br>
</span>should be able to, it just requires more effort once you start panning<br>
around. the mapping of the stylus to screen is done by a matrix that takes<br>
the whole desktop size into account. outputs as such don't matter here, e.g.<br>
mapping to the right of two monitors is done by mapping to the 50% of the<br>
width with a 50% offset.<br>
<br>
that means you can map to any part of the desktop, problem is it won't<br>
follow you around as you pan. you'd need some client to track that and<br>
update the coordinate transformation matrix as you go.<br>
<br>
Cheers,<br>
Peter<br>
<span class=""><br>
<br>
> On Sat, Apr 18, 2015 at 4:19 PM, Daniel Harris <<a href="mailto:mail.dharris@googlemail.com">mail.dharris@googlemail.com</a>><br>
> wrote:<br>
><br>
> > Hello<br>
> ><br>
> > I have a surface pro 2 and would like to create a virtual screen of<br>
> > 3840x2160 and pan around using the 1920x1080 stylus enabled touchscreen on<br>
> > the surface pro 2. I have Ubuntu installed and the screen setup but I<br>
> > cannot get the stylus to function correctly with that setup. I have tried<br>
> > experimenting with the translation matrix but with no success.<br>
> ><br>
> > Is the above setup possible?<br>
> ><br>
> > I would welcome any advice as to how to achieve this setup<br>
> ><br>
> > Thanks in advance<br>
> ><br>
> > Dan<br>
> ><br>
<br>
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</blockquote></div><br></div>