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<p style="margin-bottom:0cm"><font face="Liberation Serif, serif">I
purchased a Hauppauge HD PVR so that I could use the SKY component
output. I am having trouble with the luminance. I have followed the
instructions here: <a href="http://www.mythtv.org/wiki/Hauppauge_HD-PVR">http://www.mythtv.org/wiki/Hauppauge_HD-PVR</a>
installed ivtv-utils and then run from the terminal: </font>
</p>
<p style="margin-bottom:0cm">
</p>
<p style="margin-bottom:0cm"><font><code class="western"><font face="Liberation Serif, serif">sudo
/usr/bin/v4l2-ctl --verbose -d /dev/video1 --set-ctrl brightness=0x80
--set-ctrl contrast=0x40 --set-ctrl hue=0xf --set-ctrl
saturation=0x40 --set-ctrl sharpness=0x80 </font></code></font>
</p>
<p style="margin-bottom:0cm">
</p>
<p style="margin-bottom:0cm"><font><code class="western"><font face="Liberation Serif, serif">The
output:</font></code></font></p>
<p style="margin-bottom:0cm">
</p>
<p style="margin-bottom:0cm"><font><code class="western"><font face="Liberation Serif, serif">VODIOC_QUERYCAP:
ok</font></code></font></p>
<p style="margin-bottom:0cm"><font><code class="western"><font face="Liberation Serif, serif">VIDIOC_S_CTRL:
ok</font></code></font></p>
<p style="margin-bottom:0cm"><font><code class="western"><font face="Liberation Serif, serif">VIDIOC_S_CTRL:
ok</font></code></font></p>
<p style="margin-bottom:0cm"><font><code class="western"><font face="Liberation Serif, serif">VIDIOC_S_CTRL:
ok</font></code></font></p>
<p style="margin-bottom:0cm"><font><code class="western"><font face="Liberation Serif, serif">VIDIOC_S_CTRL:
ok</font></code></font></p>
<p style="margin-bottom:0cm"><font><code class="western"><font face="Liberation Serif, serif">VIDIOC_S_CTRL:
ok</font></code></font></p>
<p style="margin-bottom:0cm">
</p>
<p style="margin-bottom:0cm"><font><code class="western"><font face="Liberation Serif, serif">But
when I start the front-end there is no change to the picture quality.
I have changed the brightness and contrast to either end of the
accepted range with no difference in the video quality. Entering the
above command does not seem to make any difference. I am certain it
is video1. Using Mythbuntu 12.04 with all latest updates. </font></code></font>
</p>
<p style="margin-bottom:0cm">
</p>
<p style="margin-bottom:0cm"><font><code class="western"><font face="Liberation Serif, serif">I
updated to Kernel 3.4.15 and 3.5 from 3.2.0 but although all seems OK
3.4.and 3.4 does not recognise the HD PVR in the Back-end. It thinks
it is a Hauppauge Nova-S-Plus DVB-a [cx8800]! Changing back to 3.2.0
and it works correctly except for the original problem above. <br></font></code></font></p><p style="margin-bottom:0cm"><font><code class="western"></code></font></p><p style="margin-bottom:0cm"><font><code class="western"><font face="Liberation Serif, serif">Tim<br>
</font></code></font>
</p>
<p style="margin-bottom:0cm"><font><br></font>
</p>
<p style="margin-bottom:0cm"><font><code class="western"><font face="Liberation Serif, serif">Any
suggestions?</font></code></font></p>
<p style="margin-bottom:0cm"><br>
</p>