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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [IVB Regression] Backlight is not adjustable and set at maximum level in kernels 3.16-rcX on HD 4000"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81515#c18">Comment # 18</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [IVB Regression] Backlight is not adjustable and set at maximum level in kernels 3.16-rcX on HD 4000"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81515">bug 81515</a>
from <span class="vcard"><a class="email" href="mailto:aaron.lu@intel.com" title="Aaron Lu <aaron.lu@intel.com>"> <span class="fn">Aaron Lu</span></a>
</span></b>
<pre>Perhaps revert the following patch:
commit 751109aad5834375ca9ed0dcfcd85a00cbf872b5
Author: Rafael J. Wysocki <<a href="mailto:rafael.j.wysocki@intel.com">rafael.j.wysocki@intel.com</a>>
Date: Thu Jun 5 22:47:35 2014 +0200
ACPI / video: Change the default for video.use_native_backlight to 1
I'll ask Rafael about this.</pre>
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