Comment 25 for bug 324808

To have these quirks applied automatically, you must change the relevant fdi file. (/usr/share/hal/fdi/information/10freedesktop/20-video-quirk-toshiba.fdi)

BACK UP THE FILE BEFORE MAKING ANY CHANGES

add these lines just before the line <!-- these need no quirks -->

<match key="system.hardware.product" contains_outof="L300">
    <merge key="power_management.quirk.vbe_post" type="bool">true</merge>
    <merge key="power_management.quirk.s3_bios" type="bool">false</merge>
</match>

or just apply the attached patch.
sudo patch -p0 <toshiba.patch