GMA 900 & Linux

This depends on which distribution you use. If you use gentoo you have to set up your kernel correctly. Enable these options:

Device Drivers --->
    Character devices --->
        Intel I810 <*>
        Intel 830M, 845G, 852GM, 855GM, 865G (i915 driver) --->

Notice the i915 driver part. If you don't select this you will only get the old version with support for the old intel extreme graphics chipset.

If you use Fedora, debian or any of their derivatives the correct drivers are probably availible by default.

Now open up your xorg.conf and make the device section look something like this:

Section "Device"
    Identifier "Card0"
    Driver "i810"
    VendorName "Intel Corp."
    BoardName "i915"
    BusID "PCI:0:2:0"
    VideoRam 131072
EndSection

You would probably want to get the VideoRam and BusID parts from running

X -configure

and looking at the output file.

If you have a widescreen laptop you may find yourself having trouble getting xorg to use the correct resolution.

This is because of a bug in the video bios of the laptop. The solution is to patch the video bios every time the laptop starts up or goes out of hibernation. To do this you need 915resolution. Download it and unpack it to /somelocation/915resolution. Then add the following line to /etc/conf.d/local.start:

sh -c "cd /somelocation/915resolution/ && ./915resolution 5c 1280 768"

Remember to replace 1280x768 with the correct numbers for your screen (probably 1280x800 or 1440 x 900).

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