Re: FW: xorg-server 1.13.1-1: problems with xterm

[Jon TURNEY <jon dot turney at dronecode dot org dot uk>]

On 10/02/2013 12:45, Ken Brown wrote:
> On 2/8/2013 1:15 PM, Jon TURNEY wrote:
>> On 06/02/2013 17:18, PRIKHODKO, GEORGE wrote:
>>> After upgrading xorg-server and xorg-server-common packages from 1.13.0-1
>>> to 1.13.1-1 version, xterm stopped responding to mouse events. I can select
>>> a text in a xterm window, but I cannot paste in it using middle button;
>>> holding Ctrl button and pressing one of mouse buttons doesn't bring 'Main
>>> Options' or 'VT Fonts' menus. After rolling back to 1.13.0-1 version
>>> everything works as I expect.
>>>
>>> I have four computers WIndows XP, Vista, 7 and 8, and run XWin in
>>> multi-window mode:
>>>
>>> XWin -ac -clipboard -emulate3buttons -lesspointer -multiwindow
>>>
>>> All four computers show the same symptoms.
>>
>> It's really not necessary write 3 emails about this, and certainly doesn't get
>> you a reply any faster.
>>
>> I can't reproduce this problem.
>>
>> Are you using a 3-button mouse? Does removing -emulate3buttons help?
> 
> I'm also seeing a mouse problem.  It involves the combination
> shift-leftbutton-rightbutton (intended to emulate shift-middlebutton) after
> I've started XWin with -emulate3buttons.  I use a 2-button mouse with a scroll
> wheel that can be pressed to serve as a third button.  But I find it hard to
> press the scroll wheel without turning it, so I prefer to use -emulate3buttons.
> 
> The shift-left-right combination used to be seen by emacs as shift-middle, but
> now emacs doesn't seem to see it at all.  Moreover, after I press it once,
> either in emacs or elsewhere, both emacs and xterm stop responding to some
> other mouse events.
> 
> To reproduce (without emacs):
> 
> 1. Start the X server with
> 
>   startxwin -- -emulate3buttons
> 
> 2. Press shift-left-right in an xterm window, using a mouse of the type I
> described.
> 
> 3. Move the mouse over the titlebar of the xterm window.  The menu items don't
> get highlighted, and left-clicking on them has no effect.
> 
> The problem disappears if I remove the -emulate3buttons option; but that's not
> a good solution for me since I actually want to emulate 3 buttons.

Thanks for the reproduction steps.

It seems I introduced a bug in the -emulate3buttons code with some changes in
1.13.1-1, which could cause the emulated middle mouse button click to not be
released.

I've applied fix to address this, so hopefully this works better now.  I've
uploaded a snapshot at [1].  Perhaps you could try that and see if it
fixes the issue for you?

[1] ftp://cygwin.com/pub/cygwinx/XWin.20130210-git-02d68fce528227a5.exe.bz2


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