Multi Monitor : Hide Auxiliary mouse pointer

[Peter Hutterer]

On Fri, Nov 29, 2024 at 12:04:25PM +0530, SUGANDH KUMAR wrote:
> Hi,
> 
> Can anyone help on this issue please.
> 
> Thanks,
> Sugandh
> 
> On Tue, 19 Nov, 2024, 5:46 pm SUGANDH KUMAR, <sugandh.roshan at gmail.com>
> wrote:
> 
> > Hi Team,
> >
> > *Setup:*
> >
> > Using X11 on Ubuntu 22.02.
> >
> > Two monitors, primary and secondary are connected having individual mouse
> > pointers. Both monitors are touch enabled.
> >
> > Pointer on secondary monitor is created using following command: "*xinput
> > create-master Auxiliary".*
> >
> > Touch for secondary monitor is attached to Auxiliary pointer
> >
> > No changes has been made to xorg.conf
> > Also we are exporting DISPLAY=:0.
> >
> > Data of all input devices connected:
> >
> >
> >
> >
> > *Requirement:*
> >
> > I am working on a requirement to hide auxiliary mouse pointer on secondary
> > screen. But touch should work as it is. On primary monitor mouse pointer
> > should be visible.
> >
> > I tried to use multiple other options like unclutter, xsetroot to do that.
> > But all of them works only for primary monitor.
> >
> > I also tried to disable Auxiliary pointer device using xinput, but it is
> > causing xserver to crash. Find below the logs:
> >
> >
> > Please suggest me a way to complete my requirement using x11 tools. Is it
> > possible using device id getting from xinput?
> >
> > Thanks,
> > Sugandh

I don't think there's a trivial way to do this without affecting the
primary pointer too. The server's implementation of XFixesHideCursor
hides it for all master devices and there's no device-specific
equivalent in the XFixes protocol.

Cheers,
  Peter