<html>
    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <body>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [GM45] failure to control backlight"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=44156#c46">Comment # 46</a>
              on <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [GM45] failure to control backlight"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=44156">bug 44156</a>
              from <span class="vcard"><a class="email" href="mailto:daniel@ffwll.ch" title="Daniel Vetter <daniel@ffwll.ch>"> <span class="fn">Daniel Vetter</span></a>
</span></b>
        <pre>The setpci thing is the legacy hack (which on some Acer laptops seems to get
horribly in the way). Backlight /should/ get controlled through
/sys/class/backlight drivers. At least that's what X will use ...

Do none of those drivers work? If that's the case, you need a platform specific
(probably some acpi/wmi magic) backlight driver ...</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are the QA Contact for the bug.</li>
      </ul>
    </body>
</html>