I have tried several test.
Results are below, because I don't know how to login the wiki page.

Gnome/KDE
        gnome
        (KDE is not tested)

Desktop effects
        with and without

Mouse pointer freezes
        yes

Kernel options that works
        acpi=off(nomodeset is no effect)
        no freeze, but there are some issue.
        - screen draw speed is very slow.
        - When compiz enabled, screen goes white blank.
           (Desktop Cube becomes white cube)
        - Render selection (direct/indirect) by compiz fusion icon is 
disabled.(fixed to indirect)

Lucid
        not tested

Karmic + xorg-edgers
        improved but still freeze
        (old xorg freezes immediately,
        new xorg freezes after several seconds.)

Lucid + xorg-edgers
        not tested

drm-intel-next kernel
        (using linux-image-2.6.32-997-generic_2.6.32-997.201001061342_i386)
        improved but still freeze
        (old kernel freezes immediately,
        new kernel freezes after several seconds.)

no-freeze kernel
        not tested

3D app with freeze
        compiz
        3d screensavers (euphoria is most often)

-- 
[i945] Intel 82945G/GZ Integrated Graphics Controller Freezes when compiz 
enabled
https://bugs.launchpad.net/bugs/475429
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