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  1. Bug #1047483
  2. Comment #7

Comment 7 for bug 1047483

Revision history for this message
madbiologist (me-again) wrote :

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