Re: XWin Server starting everything offscreen

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

Mark A. Ziesemer wrote:
> Yaakov (Cygwin Ports) wrote:
> 
>> I think that patch was already committed[1], but the code has clearly
>> changed significantly from then.
>>
>> [1] http://cygwin.com/ml/cygwin-xfree/2003-05/msg00210.html
> 
> So can someone look into this, or at acknowledge that it's probably
> something that needs to be looked into - just so it's not forgotten about?

The (a variant of) the patch above has been applied long ago.

There is a new issue with initial window placement on multimonitor systems
when some monitors have negative coordinates.

I am looking into it.

>>> If possible, make the display on the left the primary and see if
>>> things get
>>> better :)
>>
>> I like this solution. :-)
> 
> Yes, that fixes the "offscreen" problem, but then I think that
> everything started across the center border (not properly centered on
> the primary display, as previously described).  I'm not completely sure
> about this part, though, and I can't retest at the moment.

>>> I agree it is clearly wrong, though.  Windows should be managing the
>>> location
>>> of this dialog for us, though and should know enough not do that (X
>>> programs
>>> think that the display is one big screen, and so can't know not to
>>> put dialogs
>>> on the crack between screens)
>>
>> You'd certainly think so, this is a Windows dialog after all...
> 
> By default, having worked with a few of the Windows APIs, most center
> operations do default to centering on the primary display, not centering
> across the entire visible range.  There may be a flag that needs to be
> passed-in to do this, though - one that may currently be missing from
> the Cygwin sources.  Alternatively, are we sure that the source is
> allowing Windows to manage the location at all?  Maybe it is just
> related to the same calculation issue as above, and Cygwin is passing
> absolute x,y coordinates that cross the screen boundaries.
> 
>>> If you want -multiwindow mode, but only on 1 screen, something like
>>> "XWin
>>> -screen 0 @1 -multiwindow" should work.
> 
> I tried using various -screen options, but tried passing in dimensions,
> not anything with the "@".  I didn't see that syntax described in the
> command-line options.  I will try it, but regardless, could you share
> some details or kindly refer me to any related documentation?

$ XWin -help
[...]
-screen scr_num [width height [x y] | [[WxH[+X+Y]][@m]] ]
        Enable screen scr_num and optionally specify a width and
        height and initial position for that screen. Additionally
        a monitor number can be specified to start the server on,
        at which point, all coordinates become relative to that
        monitor (Not for Windows NT4 and 95). Examples:
         -screen 0 800x600+100+100@2 ; 2nd monitor offset 100,100 size 800x600
         -screen 0 1024x768@3        ; 3rd monitor size 1024x768
         -screen 0 @1 ; on 1st monitor using its full resolution (the default)
[...]

"Xwin -multiwindow -nomultiplemonitors" might also be what you want


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