This is likely to be fixed in the upstream 3.8.1 kernel by the following
patch:
commit 80927f571d384c0d5a98dfc11ca26af734054b7b
Author: Daniel Vetter
Date: Fri Feb 15 18:35:30 2013 +0100
drm/i915: inverted brightness quirk for Acer Aspire 4736Z
commit ac4199e0f047546aa40172785e26c82b54bbe811 upstream.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=53881
Cc: Jani Nikula
Tested-by: Jani Monoses
Signed-off-by: Daniel Vetter
Signed-off-by: Greg Kroah-Hartman
This should soon be backported to the earlier stable kernels, and then
make it's way into Ubuntu.
While you are waiting you can add invert_brightness to your GRUB boot
options as described at
https://help.ubuntu.com/community/Grub2/Troubleshooting#Editing_the_GRUB_2_Menu_During_Boot
** Bug watch added: Linux Kernel Bug Tracker #53881
http://bugzilla.kernel.org/show_bug.cgi?id=53881
** Package changed: ubuntu => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/1047483
Title:
Ubuntu 12.10 Intel GMA4500M Display is blank upon bootup
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