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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Backlight does not increase to maximum on Lenovo Yoga 2 Pro"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75085#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Backlight does not increase to maximum on Lenovo Yoga 2 Pro"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75085">bug 75085</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>Neither, just a misfeature in your ACPI firmware. The prevailing opinion is
that the ACPI for all machines released in the last couple of years have a
buggy backlight controller, and the kernel is striving to identify those broken
interfaces and disable them.</pre>
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