This document details how to get Linux* up and running on your system that is using either an Intel® 810 or an Intel® 810E chipset. This information was written using Red Hat* 6.0 as a reference platform, some details may not be valid on other distributions or versions.

• Requirements
• Installing a new system
• Kernel Setup
• X Server Installation
• Compiling X from source
• References

1. Check your Memory.
   Linux* kernel 2.2.X has a problem recognizing all the memory on some Intel® 810 and Intel® 810E chipsetbased systems. This will make the system seem very slow, or just not as fast as it could be. To check your system, run this command at a command prompt.

	cat /proc/meminfo
   

Look for a line that says:

	MemTotal:	XXXXX kb
   

If this number is not close to the amount of RAM in your system, you will have to tell the kernel how much RAM you have. Note that this should be about 1-2 MB less than your actual system memory amount of installed RAM . This is because the graphics chip uses system RAM for its 1MB frame-buffer.

2. Specify an amount of RAM.
   For the kernel to know how much RAM you have available for use you will need to supply a kernel boot parameter to LILO either at the boot prompt or in the configuration file. At the LILO prompt enter the name of the kernel you want (Usually 'linux' unless you changed it) followed by mem=##M. The ## is the amount of memory you have in megabytes. REMEMBER to subtract 1 MB for the part taken by the graphics acelerator otherwise your kernel may experience diffuiculties during boot-up. If you still experience problems after making this change , subtract another 1MB,as this could be taken by vendor specific BIOS needs.

	LILO:  linux mem=63M

	append="mem=63M"

	/sbin/lilo

1. Find your XFree86 version.
   To determine what version of X your distribution has installed you can run:

	X -version
   

2. Install XFree86 3.3.5
   If you do not have it already, you will need to download and install XFree86 version 3.3.5. If your distribution came with a version of XFree86 earlier than 3.3.5 your should check to see if an upgrade is available from your distribution's web site. If your distribution does not have an upgrade available you can download it directly from the XFree86.org web site.
   When installing XFree86 you should use the vga16 server. The maximum resolution with this "compatibility" server will be 640x480x16. After you have successfully installed the vga16 server you can upgrade your install with the XFCom-I810 X server which will support high resolution modes.
3. Download XFCom-I810 and agpgart.
   Download the XFree86 3.3.5 accelerated X server for the Intel® 810 chipset family (XFCom-i810) from support.intel.com. This is available in either RPM or tar formats, choose the one your distribution supports.
   You will also need to download the agpgart.o source. This is available in either a source RPM or a tar format, choose the one you distribution supports.
   
4. Install XFCom-I810.
   You will need to be root to do this.
   RPM:

	rpm -Uvh XFCom-i810-glibc2.1-1.0.0-rh60.i386.rpm
   


TAR:

	tar -zxpvf XFCom-i810-glibc2.1-1.0.0.tar.gz
        cd XFCom-i810-glibc2.1-1.0.0
        ./INSTALL
   

5. Compile and install the kernel module
   The kernel module must be compiled before it can be installed. This module will need to be recompiled and reinstalled if you upgrade your kernel at a later date, so keep the source in a safe place.
   RPM:

	rpm --rebuild  I810Gtt-0.1-4.src.rpm
	# Look for the output near the bottom that says where the rpm 
        # was built. Use that rpm name in the next command if you are 
        # not on a RedHat system.
	rpm -Uvh /usr/src/redhat/RPMS/i386/i810Gtt-0.1-4.i386.rpm
    


TAR:

        mkdir temp_i810
        cd temp_i810
	tar -zxpvf /path to tar/I810Gtt-0.1-4.src.tar.gz
	make
	make install
	# You may remove the temp_i810 and its contents if you wish.
   

6. Edit the XF86Config file.
   Setup your XF86Config file. Use your favorite text editor to edit the file /etc/X11/XF86Config. You will need to be root to do this. Add the following device section to your XF86Config file. There should be other similar device sections already in the file. You can add this to the file without changing other device sections.

Section "Device"
	Identifier "i810"
EndSection
   

Add this screen section, you should remove any other "svga" screen sections that may be in this file. Do not remove the vga16 screen section, as it would be useful if you should ever need to fall back to vga mode. You must edit the Monitor line to reflect the Monitor you have. You can get this from another "Screen" section in this file, or from the "Monitor" section of the XF86Config file. Be careful not to specify modes that your Monitor cannot support, you could damage the Monitor.

Section "Screen"
    Driver      "svga"
    Device      "i810"
    Monitor     ""
    Subsection "Display"
        Depth      8 
        Modes       "640x480" "800x600" "1024x768" "1152x864" "1280x1024" "1600x1200"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth      16 
        Modes       "640x480" "800x600" "1024x768" "1152x864" "1280x1024" "1600x1200"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth      24 
        Modes       "640x480" "800x600" "1024x768" "1152x864" "1280x1024"
        ViewPort    0 0
    EndSubsection
EndSection
   

Note: Edit the "Modes" lines to have only the resolutions you want for each Color depth. In this configuration your desktop will be as large as the largest supported mode in the line. Your viewable area is the only thing that changes giving you a 'zoom' affect. If this is not what you want (It probably isn't) make sure the largest mode on each line is the mode you plan on using for your desktop, the other modes can be available in case you need a low resolution mode for a game or application. You can also remove an entire Subsection (Including the Subsection "Display" and "EndSubSection" lines) if you do not want to be able to use that color depth. Each Mode must be defined earlier in the XF86Config file under the "Monitor" section. These should be setup according to what your monitor can support. Most distributions do this during the install process. See the generic documentation at XFree86 FAQ if you have difficulty with the modes.


7. Set up the X server link.
   You will need to be root to do this.

	ls -l /etc/X11/X
	  # You should see this as being a link to the vga16 server.
          # We'll need to change this. If this link is not here then you
          # will need to contact your distribution to assist you.

	ln -sf /usr/X11R6/bin/XFCom_i810 /etc/X11/X
	  # If your X link was elsewhere then use that path in the command
          # above.
   

8. Start the X server.
   If you are already running X you will need to exit and start again. If you are set up to start X automatically then you will want to restart it by doing a "CTRL-ALT-Backspace". If X is not running you should start it with a command like this:

	startx -- -bpp 16
   

1. Download the source for the X server from XFree86.org . You will need these files, do not untar them, simply put them in a temp directory. (Note that this is 40+ MB of source)
• X335src-1.tgz
• X335src-2.tgz
• X335src-3.tgz
2. Download the patch from support.intel.com. This file should be called XFCom-i810-3.3.5.patch.tar.gz
3. Patch and build the source. Untar the patch into the same directory you placed the X335* files in and run the build-i810.sh script.

	cd  path to X335*
	tar -zxpvf XFCom-i810-3.3.5.patch.tar.gz
	./build-i810.sh
    

• XFree86 FAQ
• XFree86 3.3.5 configuration
• XFree86-HOWTO

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