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    <body><span class="vcard"><a class="email" href="mailto:emil.l.velikov@gmail.com" title="Emil Velikov <emil.l.velikov@gmail.com>"> <span class="fn">Emil Velikov</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - I can't modify brightness with nVidia 1000m Quadro"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=47965">bug 47965</a>
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          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
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           <td style="text-align:right;">See Also</td>
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           <td>https://bugs.freedesktop.org/show_bug.cgi?id=39550
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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - I can't modify brightness with nVidia 1000m Quadro"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=47965#c7">Comment # 7</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - I can't modify brightness with nVidia 1000m Quadro"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=47965">bug 47965</a>
              from <span class="vcard"><a class="email" href="mailto:emil.l.velikov@gmail.com" title="Emil Velikov <emil.l.velikov@gmail.com>"> <span class="fn">Emil Velikov</span></a>
</span></b>
        <pre>Try using "acpi_backlight=vendor" (as a parameter to your kernel command line).
It will force the nouveau backlight to be used rather than the ACPI one

Note that there is a similar issue with HP Elitebook 8530w (see <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Brightness stuck to low value after suspend/resume"
   href="show_bug.cgi?id=39550">bug 39550</a>)
Quick search indicates that HP laptops are quite common with those type of
issues

Apart from that can you attach your vbios [1]


[1] <a href="http://nouveau.freedesktop.org/wiki/DumpingVideoBios">http://nouveau.freedesktop.org/wiki/DumpingVideoBios</a></pre>
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