Re: mouse clicks no longer responsive

["Yaakov (Cygwin/X)" <yselkowitz at users dot sourceforge dot net>]

On Tue, 2011-12-20 at 10:16 -0500, Daniel Manley wrote:
> I'm using cygwin 1.7.9 and xorg-x11-bin 7.4-1 on Windows XP.  I "ssh -Y" 
> over to a Fedora 16 machine and run "gnome-terminal" from there with 
> multiple windows and tabs, plus gedit, etc.
> 
> all works for a while, but eventually mouse clicks no longer register -- 
> I can't highlight text, click on different terminal tabs, etc.  Keyboard 
> shortcuts still work though.
> 
> I have another server running Fedora 14, and do no have this problem.
> 
> Is there a known issue with a lib used in Fedora 16?  Is there a 
> settings I can tweak on either the X client or the server to get around 
> this problem?

Presuming you are running XWin in multiwindow mode, I think you're
running into this issue:

https://bugzilla.gnome.org/show_bug.cgi?id=658118

We believe that it is not a bug in Cygwin or Fedora, but in gtk+-3.x
itself.  You aren't seeing this with Fedora 14 because that still uses
gtk+-2.x for most apps.

A new "feature" in gtk+-3.x is that the unused portion of any menu- or
toolbar can be used to grab and move windows as if it were part of the
window decoration.  XWin's multiwindow WM implementation doesn't provide
the necessary functionality for that (whatever that may be, we're not
sure yet), so we're particularly susceptible, but as shown in the bug,
this can be reproduced purely within a Linux environment.

As you'll see we have yet to receive a response from upstream.  Until we
can get this fixed in gtk+, or implement the necessary feature in XWin
to avoid the bug, the workaround is to use XWin in windowed (desktop)
mode.


Yaakov
Cygwin/X



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