Hi all. I'm working on a research project at university. Part of it is a 2x2 video wall with HD-projectors which are controlled by a linux-pc. X.org 7.1.1 is running on it and additionally a proprietary software that manages things like the calibration of the projectors (the projectors are mounted in such a way that their pictures overlap each other - as you can see in my draft below). Now my idea is to use only the X-Server (if it's possible) to do most of what this software does. But therefore i still have a couple of questions:
1. How can I move a Screen, defined in xorg.conf? or in other words I want to change the absolute position of a screen (just because about 100 pixels of the hd-projectors image get lost at the left border of the video wall...) -> I just experimented around with Modelines but I just got a 'Not supported by Hardware' message 2. As I said before (and I hope you can see it from my draft below), there are different areas of my video wall, where at least one screen overlaps another one. Of course the X Window System treats the 4 defined Screens as 4 independent displays without knowing they overlap each other, so that information is lost in the * and # marked fields. Is there a possibility - let's say - to tell X to send the information of the last 100 lines of information of Screen 1 to Screen 3, too? 3. Can I use X.org to put an alpha-mask on my displays? My aim is to double information as mentioned above in 2. and do something like soft blending. +-------------+-----+-------------+ | |*****| | | Screen 1 |*****| Screen 2 | | |*****| | + - - - - - - + - - + - - - - - - + |*************| ### |*************| |*************| ### |*************| + - - - - - - + - - + - - - - - - + | |*****| | | Screen 3 |*****| Screen 4 | | |*****| | +-------------+-----+-------------+ * = 2 Screens overlapping # = 4 Screens overlapping It would be great if someone could help me. Thanks, Leif _______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
