===Project 4 - Video Wall! ===

<WRAP round box>Steps to set up a video wall, also refer to [[user:jbrant:csit1320:project3|this]] documentation for more information!</WRAP>

  - Install the same operating system on both machenes. Setup intstallation, setting names, passwords, ect.
==== The following line where done to both systems ====
  - Update.  * ' **aptitude update** '
  -           ' **aptitude upgrade** '
  - Install video driver. We used; **wget http://10.80.2.6/files/student/nvidia173.run** (because we already had this on the lab server)
             * **chmod 777 nvidia173.run** ; to compile the driver
             * .**/nvidia173.run** ; to install the driver. We ran into some problems here. To get around them we used **'aptitude install build-essential'** and **aptitude install linux-sorce-2.6.31** to bring the system up to date.
             * Using the dpkg -l | grep nvidia we found all the nvidia files we needed too, and installed all files that showed up with aptitude install ________
    

===== The following line was done to vidwall and scp to vidwall2 =====

             * In the xorg.config file we needed to edit __N__vidia to //n//vidia, and uncomment NoLogo and TwinView lines.
             ' **scp /etc/X11/xorg.conf 10.80.2.194** '
             
  - Next we needed to install Fluxbox to have a window manager; ' **aptitude install fluxbox** ' on both systems
             * To set the screens to either act verticly or horizantly under the /etc/X11 directory we needed to edit the xorg.conf file on both systems. Under the "device" section we need to add   **Option "MetaModes"      "1280x1024 +0+0, 1802x1024 +0+0"** 
             * 
  - Use **xhost +** to enable network communitcations on both machines.
  - Use export** DISPLAY=10.80.2.194;0** to set the monitors of the second machine to display what is on the first machine.
  - Installing Xdmx by using **aptitude install xdmx**, on both machenes. (Make sure both machenes are set to the same resolution)
  - At this point we where able to launch the fluxbox desktop on both systems.
  - Then we created a confiuration file that looked like this. 
                startx -- /usr/bin/X11/Xdmx:1 -display 10.80.2.199:0 -display 10.80.2.194:0 -ignorebadfontpaths + xinerana
          
  - Patch Xdmx. We retrived the new patches from [[https://launchpad.net/ubuntu/karmic/+source/xorg-server/2:1.6.4-2ubuntu4.2]] (xorg-server_164.org.tar.gz and xorg-server_1.6.4-2ubuntu.4.2.diff)
  - To patch files and output any errors to an error file, patch -p1 <xorg-server_1.6.4 2>err 
  - All of those patched files should be in the /home/vidwall/xorg-server-1.6.4 directory
             * config, glx, debian, hw, doc, xkb (all of these should be in the zorg-server-1.6.4 directory)
  - To compile these dpkg-buildpackage -rfakeroot -us -uc
             * Remove old files by aptitude remove xdmx (should remove both xdmx and xdmx-tools
             * To install new, dpkg -i packagename

----

 At this point we should have had a working system, but we did not. This is what else we tried.
  *  We tried to download and install "dmxpict.patch" from the notes page of this wiki, under systems and networking.
             * in xorg-server-1.6.4/hw/dmx/dmxpict.c edit the file
             * between the line "FIX ME: Handle savng clip region ~" and "DMX_WRAP(Change Picture ~)"
             * XRectanle aRect;
             * aRect.x = 0; aRect.y = 0;
             * Arect.width = 9999 ;
             * ARect.height = 9999;
             * XRenderSetPictureClipRectangles(dmxScreen->beDisplay, pPictPriv->pict,0,0, &aRect,1);

  * When trying to fix the bad fonts issue we...
             * cd /usr/share/fonts/X11
             * cp fontname fixed.pcf.gz (we chose something that seemed like a 'normal' font name)
 
        
        
   <WRAP>NOTE: Because this did not satisfy me I rebuilt the systems using  debian Lenny and this process. Once I got this done and tried to bring up the wall I keep having a problem with the mouse. I then googled the problem. The resolution to the problem ended up being to load Xdmx from debian etch. This worked and I was able to bring up the vidoe wall.</WRAP>