I've fixed it through commenting out a few codelines:
if (edid)
drm_add_edid_modes(output, edid);
in static int intel_lvds_get_modes(struct drm_output *output) file
intel_lvds.c of package psb-kernel-source
--
intel poulsbo (psb): kernel BUG: unable to handle kernel NULL pointer
dereference at 00000000
https://bugs.launchpad.net/bugs/406529
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