@Adrienne-
It sounds like the problems you're experiencing more specifically relate to
either of these two bug reports ("backlight off at startup"):
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/779166
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/765438
My suggestion is to try the new 'inverted-backlight' test PPA, but post your
results to bug 779166:
https://launchpad.net/~kamalmostafa/+archive/inverted-backlight
Important: Booting with the parameter "acpi_backlight=vendor" may also
be necessary -- see the inverted-backlight page above for details.
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https://bugs.launchpad.net/bugs/872652
Title:
screensaver backlight stuck off, system looks hung
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