Ubuntu 11.04 vs. Intel 865G

Hm, it looks like this post has stuck in my drafts for some years now...

Compositing produces a considerable amount of flicker and the display is obstructed by random image parts. dmesg is also full of page flip errors.

Solution:

cat >~/.drirc <<EOF
<driconf>
    <device screen="0" driver="dri2">
        <application name="Default">
            <option name="vblank_mode" value="0" />
        </application>
    </device>
</driconf>
EOF

service gdm restart


via https://bugs.freedesktop.org/show_bug.cgi?id=30654#c10 and http://pastebin.com/3gr5VbHY

Also needed to append the following to the kernel command line, or else I got a lot of squashfs block read errors:
acpi=off noapic ide=nodma all_generic_ide pci=nommconf

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