Re: 2 Elo touchscreen button event bug

On Tue, 8 May 2007, srimugunthan dhandapani wrote:

> I have 2 Elo touch screen monitors(1024 x 768) and they are configured with
> Xinerama extension.

> The bug that we have is that the button click event doesnt properly switch
> between the screens but the cursor movement is correct.

> When we touch on a button1 on screen 1 and then touch button2 on screen 2 we
> found that the touch on button2 is recognized only for button 1(with the
> focus still being there on button1) but we found that cursor has moved to
> button 2. Subsequent touches on button2 are recognized correctly.The problem
> was there only for the first touch on button2

> I narrowed the problem to xf86XInputSetScreen.

> I was able to get an workaround

> I modified the function NewCurrentScreen in events.c.

> when calling SetCursorPosition I hardcode 1023 and 0 for the X cordinate for
> screen1 and screen0 respectively. That solved the bug.But I am not sure why
> it solves the bug !!

> I am not sure why this fix it.

> Anybody have an explanation for this?

It's possible you are not specifying the ScreenNo option for each of the 
Elo's.  That option should be set to 0 & 1 respectively.  Deafult is 0.

Marc.

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