Re: Shredded X11 coordinate text bug

[Daniel J S. <dan...@ie...>]

Dave Denholm wrote:

>Harald Harders <h.h...@tu...> writes:
>
>  
>
>>On Mon, 13 Sep 2004, Hans-Bernhard Broeker wrote:
>>
>>    
>>
>>>On Mon, 13 Sep 2004, Daniel J Sebald wrote:
>>>
>>>      
>>>
>>>>I believe I can duplicate the shredded coordinate text now.  (Finally!!)
>>>>        
>>>>
>>>[...]
>>>      
>>>
>>I have got the same problem. I am using the window manager icewm under
>>Linux. In many cases, the x11 windows starts at a position that the
>>coordinates are hidden behind the start menu. If I than move up the
>>gnuplot-x11 window, the numbers get shredded. It seems that it is the same
>>problem which Hans-Bernhard has described. Shouldn't the numbers be
>>reprinted without xor at least at every raise of and every click on the
>>window?
>>
>>    
>>
>
>Should be able to ask the XServer to send expose events when bits of
>window become visible after being hidden. That would be a more
>reliable indicator.
>

But in the case of moving the window partially off screen, does X think 
that it isn't visible?

Anyway, I was certain this just started happening out of the blue.  I 
just went back and confirmed that this doesn't happen in 4.0.

Trying to think back a few months, hold on.  There was a change in the 
animation behavior, then after that I see some list entries regarding 
"Mouse coord lag (Re: An observation in animate demo.)" around 6/15. 
 That sounds about right to me.  The kinds of discussion that seemed to 
be going on within that thread were:

*  core change within is the use of XCheckEvent
*    while (XCheckTypedWindowEvent(dpy, event->xany.window, 
ConfigureNotify, event));

That may be a good place to start.

Dan