Vendor patches for X11R6.8.2...

[Alan Coopersmith]

I'm not so comfortable with this patch, though perhaps I could be convinced.

First, for the 6.8.2 release, just how much do we intend to put in?  This
seems to be crossing the line from important bug fix to new feature.

And for this specific functionality, is this really the best way to solve it?
Shouldn't the applications querying for Xinerama be modified to not use their
special behaviour when not wanted?   This seems to fool everyone to work
around a few broken applications.   I don't know about Xorg, but I know for
Xsun this would break apps that have other reasons for needing to know about
what part of the screen maps to which underlying frame buffer (such as Sun-DGA, 
which is similar to Xorg's DRI, or Sun OpenGL).

Long term, we really need to decouple the long assumed 1-to-1 mapping of
Xserver screen to physical screen.   Xinerama breaks it, but so do multi-head
cards, multi-input monitors, multi-head projection systems, display walls,
and various other things.   We were kicking around for a while inside Sun,
but never got around to implementing, an extension that not only reported
physical screen boundaries, but also other characteristics clients may need
to know, like subpixel layouts of LCD's and similar devices (RGB vs. BGR,
horizontal vs vertical, etc.).

	-alan-


Dale Southard wrote:
> 
> 
> Maybe not exactly what you wanted, but the patch in B1846 handles
> a minor issues with xinerama on display walls and multi-input monitors.
> We been using it internally under Xdmx, but it it'd be nice to
> have it folded into trunk.
> 
> On Nov 10, 2004, at 9:04 PM, Roland Mainz wrote:
> 
>> Are there any patches out there used in the various X11 vendor releases
>> which may be interesting for the X11R6.8.2 release (for example SuSE has
>> commited lots of stuff to Xorg trunk which are also present in SuSE 9.2,
>> some of these patches may be something nice-to-have for X11R6.8.2) ?
>> If anyone has such patches floating around - please open a bugzilla bug
>> (if there isn't anyone yet for that issue), attach patch, commit to
>> trunk and then request approval for X11R6.8.2...
> 
> 
> -- 
> /*  Dale Southard Jr.  dsouth at llnl.gov  925-422-1463 fax 422-9429  */
> /*  Computer Scientist, Advanced Simulation and Computing Program  */
> /*  L-073,  Lawrence Livermore National Lab,  Livermore CA  94551  */
> 
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-- 
	-Alan Coopersmith-           alan.coopersmith at sun.com
	 Sun Microsystems, Inc. - X Window System Engineering