bug#36779: 25.1; mouse click not recognized for frames with large left position

[Eli Zaretskii <eliz@gnu.org>]

> From: Eijiro Sumii <sumii@ecei.tohoku.ac.jp>
> Date: Thu, 25 Jul 2019 13:32:39 +0900
> Cc: 36779@debbugs.gnu.org, Eijiro Sumii <sumii@ecei.tohoku.ac.jp>
> 
> > > 1. Prepare dual monitors (mines are 1920x1080 and 3840x2160)
> > > 2. emacs -Q
> > > 3. Type some texts
> > > 3. Place the window (frame) at large left position (> 3840 in my case)
> > > 4. Click anywhere in the text; no click is recogonized (in my case, at
> > > least)
> >
> > Are you saying that "C-h l" doesn't show any click events in this
> > case?
> 
> Yes, that's the case.
> 
> For additional information, some of the menus (for example, "Edit" ->
> "Replace" -> "Replace String...") also don't work (they can be clicked
> but nothing happens) *only when* the window frame is placed at large
> left position.

Sounds like some problem with mouse support in that configuration?  I
guess someone will needs to reproduce this under a debugger and see
what kind of data do we get from X.

Thanks.