<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
  
  
  <channel>
    <title>chrisjrob: wip</title>
    <link>https://chrisjrob.com</link>
    <atom:link href="https://chrisjrob.com/tag/wip/feed/index.xml" rel="self" type="application/rss+xml" />
    <description>GNU Linux, Perl and FLOSS</description>
    <language>en-gb</language>
    <pubDate>Fri, 13 Feb 2026 17:22:31 +0000</pubDate>
    <lastBuildDate>Fri, 13 Feb 2026 17:22:31 +0000</lastBuildDate>
    
    <item>
      <title>Hauppauge HVR-2200</title>
      <link>https://chrisjrob.com/2010/08/04/hauppauge-hvr2200/</link>
      <pubDate>Wed, 04 Aug 2010 00:00:03 +0000</pubDate>
      <author>chrisjrob@gmail.com (Chris Roberts)</author>
      <guid>https://chrisjrob.com/2010/08/04/hauppauge-hvr2200</guid>
      <description>
       <![CDATA[
         
         <h2 id="introduction">Introduction</h2>

<p>It seems that the HVR-2200 is something of a work-in-progress under Linux.  Plenty of people seem to have it working, but it is not simple to configure.  See the references at the end for further reading.</p>

<p>I now have this card working under MythTV, but I have not yet managed to get the programme guide updating via EIT (Freeview).</p>

<!--more-->

<p>Those new to MythTV should visit: <a href="http://parker1.co.uk/mythtv_ubuntu.php">http://parker1.co.uk/mythtv_ubuntu.php</a></p>

<h2 id="installation">Installation</h2>

<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>$ sudo apt-get install mercurial libncurses5-dev unzip

$ wget http://www.steventoth.net/linux/hvr22xx/22xxdrv_27086.zip
$ wget  http://www.steventoth.net/linux/hvr22xx/HVR-12x0-14x0-17x0_1_25_25271_WHQL.zip
$ wget http://www.steventoth.net/linux/hvr22xx/firmwares/4019072/NXP7164-2010-03-10.1.fw
$ wget http://www.steventoth.net/linux/hvr22xx/extract.sh
$ sh extract.sh
$ sudo cp *fw /lib/firmware
or
$ sudo cp *fw /lib/firmware/`uname -r`

$ hg clone http://kernellabs.com/hg/saa7164-stable/

$ cd saa7164-stable
$ make CONFIG_DVB_FIREDTV:=n
$ sudo make install
$ wget http://www.steventoth.net/linux/hvr22xx/firmwares/4038864/v4l-saa7164-1.0.3-3.fw 
$ sudo cp v4l-saa7164-1.0.3-3.fw /lib/firmware

$ sudo adduser &amp;lt;userid&amp;gt; video
$ sudo reboot
</code></pre></div></div>

<h2 id="create-channelconf">Create Channel.conf</h2>

<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>$ sudo apt-get install dvb-apps
$ scan ./uk-CrystalPalace -o zap &gt; ~/.mythtv/channels.conf
</code></pre></div></div>

<h2 id="scan">Scan</h2>

<p>Now go to Mythbackend-Setup and perform a full scan.</p>

<h2 id="test">Test</h2>

<p>You should now have a working system, unfortunately I found that the programme guide, or EPG, was not updating.</p>

<h2 id="fixing-epg">Fixing EPG</h2>

<p>(Thanks to “Neon Dusk” from the second Ubuntu forum link in the references below.)</p>

<p>Using channels.conf to get the channel information is OK, but sometimes it doesn’t fill in all the information required.</p>

<p>Make a note of your mysql password from <code class="language-plaintext highlighter-rouge">/etc/mythtv/mysql.txt</code> - there should be a field DBPassword</p>

<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>$ mysql -u mythtv -p
&lt;enter mysql password&gt;
use mythconverg;
select * from `dtv_multiplex`;
</code></pre></div></div>

<p>Copy the resulting output into a text editor, here was mine.  Note the networkid is null.</p>

<table>
  <thead>
    <tr>
      <th>mplexid</th>
      <th>sourceid</th>
      <th>transportid</th>
      <th>networkid</th>
      <th>frequency</th>
      <th>inversion</th>
      <th>symbolrate</th>
      <th>fec</th>
      <th>polarity</th>
      <th>modulation</th>
      <th>bandwidth</th>
      <th>lp_code_rate</th>
      <th>transmission_mode</th>
      <th>guard_interval</th>
      <th>visible</th>
      <th>constellation</th>
      <th>hierarchy</th>
      <th>hp_code_rate</th>
      <th>mod_sys</th>
      <th>rolloff</th>
      <th>sistandard</th>
      <th>serviceversion</th>
      <th>updatetimestamp</th>
      <th>default_authority</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>1</td>
      <td>1</td>
      <td>4100</td>
      <td>NULL</td>
      <td>505833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_16</td>
      <td>8</td>
      <td>3/4</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_16</td>
      <td>n</td>
      <td>3/4</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td> </td>
      <td>33</td>
      <td>2010-06-29 19:28:10</td>
      <td> </td>
    </tr>
    <tr>
      <td>2</td>
      <td>1</td>
      <td>8197</td>
      <td>NULL</td>
      <td>481833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_64</td>
      <td>8</td>
      <td>1/2</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_64</td>
      <td>n</td>
      <td>2/3</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td> </td>
      <td>33</td>
      <td>2010-06-29 19:28:10</td>
      <td> </td>
    </tr>
    <tr>
      <td>3</td>
      <td>1</td>
      <td>12290</td>
      <td>NULL</td>
      <td>561833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_64</td>
      <td>8</td>
      <td>1/2</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_64</td>
      <td>n</td>
      <td>2/3</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td> </td>
      <td>33</td>
      <td>2010-06-29 19:28:10</td>
      <td> </td>
    </tr>
    <tr>
      <td>4</td>
      <td>1</td>
      <td>16384</td>
      <td>NULL</td>
      <td>529833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_16</td>
      <td>8</td>
      <td>3/4</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_16</td>
      <td>n</td>
      <td>3/4</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td> </td>
      <td>33</td>
      <td>2010-06-29 19:28:10</td>
      <td> </td>
    </tr>
    <tr>
      <td>5</td>
      <td>1</td>
      <td>20480</td>
      <td>NULL</td>
      <td>578166670</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_16</td>
      <td>8</td>
      <td>3/4</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_16</td>
      <td>n</td>
      <td>3/4</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td> </td>
      <td>33</td>
      <td>2010-06-29 19:28:10</td>
      <td> </td>
    </tr>
    <tr>
      <td>6</td>
      <td>1</td>
      <td>24576</td>
      <td>NULL</td>
      <td>537833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_16</td>
      <td>8</td>
      <td>3/4</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_16</td>
      <td>n</td>
      <td>3/4</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td> </td>
      <td>33</td>
      <td>2010-06-29 19:28:10</td>
      <td> </td>
    </tr>
  </tbody>
</table>

<p>6 rows in set (0.00 sec)</p>

<p>In mythtv-setup -&gt; channel editor -&gt; Edit transport
Delete all existing transports (highlight transport then press d)</p>

<p>Go to channel scanner
Select Scan Type: Full Scan (Tuned)</p>

<p>Use the values recorded from the sql statement and then do a scan. You’ll need to do this for the 6 muxes.</p>

<p>Hopefully this should find all the channels and if you repeat the sql commands you’ll see the networkid value filled in. This should then allow the EIT EPG to work</p>

<p>My resulting output was as attached:</p>

<table>
  <thead>
    <tr>
      <th>mplexid</th>
      <th>sourceid</th>
      <th>transportid</th>
      <th>networkid</th>
      <th>frequency</th>
      <th>inversion</th>
      <th>symbolrate</th>
      <th>fec</th>
      <th>polarity</th>
      <th>modulation</th>
      <th>bandwidth</th>
      <th>lp_code_rate</th>
      <th>transmission_mode</th>
      <th>guard_interval</th>
      <th>visible</th>
      <th>constellation</th>
      <th>hierarchy</th>
      <th>hp_code_rate</th>
      <th>mod_sys</th>
      <th>rolloff</th>
      <th>sistandard</th>
      <th>serviceversion</th>
      <th>updatetimestamp</th>
      <th>default_authority</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>10</td>
      <td>1</td>
      <td>16384</td>
      <td>9018</td>
      <td>529833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_16</td>
      <td>8</td>
      <td>3/4</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_16</td>
      <td>n</td>
      <td>3/4</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td>dvb</td>
      <td>33</td>
      <td>2010-08-08 18:27:49</td>
      <td> </td>
    </tr>
    <tr>
      <td>9</td>
      <td>1</td>
      <td>12290</td>
      <td>9018</td>
      <td>561833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_64</td>
      <td>8</td>
      <td>1/2</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_64</td>
      <td>n</td>
      <td>2/3</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td>dvb</td>
      <td>33</td>
      <td>2010-08-08 18:27:49</td>
      <td> </td>
    </tr>
    <tr>
      <td>8</td>
      <td>1</td>
      <td>8197</td>
      <td>9018</td>
      <td>481833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_64</td>
      <td>8</td>
      <td>1/2</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_64</td>
      <td>n</td>
      <td>2/3</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td>dvb</td>
      <td>33</td>
      <td>2010-08-08 18:27:49</td>
      <td> </td>
    </tr>
    <tr>
      <td>7</td>
      <td>1</td>
      <td>4100</td>
      <td>9018</td>
      <td>505833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_16</td>
      <td>8</td>
      <td>3/4</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_16</td>
      <td>n</td>
      <td>3/4</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td>dvb</td>
      <td>33</td>
      <td>2010-08-08 18:27:49</td>
      <td> </td>
    </tr>
    <tr>
      <td>11</td>
      <td>1</td>
      <td>20480</td>
      <td>9018</td>
      <td>578166670</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_16</td>
      <td>8</td>
      <td>3/4</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_16</td>
      <td>n</td>
      <td>3/4</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td>dvb</td>
      <td>33</td>
      <td>2010-08-08 18:27:49</td>
      <td> </td>
    </tr>
    <tr>
      <td>12</td>
      <td>1</td>
      <td>24576</td>
      <td>9018</td>
      <td>537833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_16</td>
      <td>8</td>
      <td>3/4</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_16</td>
      <td>n</td>
      <td>3/4</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td>dvb</td>
      <td>33</td>
      <td>2010-08-08 18:27:49</td>
      <td> </td>
    </tr>
    <tr>
      <td>13</td>
      <td>1</td>
      <td>8197</td>
      <td>0</td>
      <td>481833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_64</td>
      <td>8</td>
      <td>1/2</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_64</td>
      <td>n</td>
      <td>2/3</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td>dvb</td>
      <td>33</td>
      <td>2010-08-08 18:27:59</td>
      <td> </td>
    </tr>
    <tr>
      <td>14</td>
      <td>1</td>
      <td>16384</td>
      <td>0</td>
      <td>529833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_16</td>
      <td>8</td>
      <td>3/4</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_16</td>
      <td>n</td>
      <td>3/4</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td>dvb</td>
      <td>33</td>
      <td>2010-08-08 18:27:59</td>
      <td> </td>
    </tr>
    <tr>
      <td>15</td>
      <td>1</td>
      <td>24576</td>
      <td>0</td>
      <td>537833330</td>
      <td>a</td>
      <td>0</td>
      <td>auto</td>
      <td>v</td>
      <td>qam_16</td>
      <td>8</td>
      <td>3/4</td>
      <td>2</td>
      <td>1/32</td>
      <td>0</td>
      <td>qam_16</td>
      <td>n</td>
      <td>3/4</td>
      <td>UNDEFINED</td>
      <td>0.35</td>
      <td>dvb</td>
      <td>33</td>
      <td>2010-08-08 18:27:59</td>
      <td> </td>
    </tr>
  </tbody>
</table>

<p>9 rows in set (0.00 sec)</p>

<h2 id="test-again">Test Again</h2>

<p>Have a look at your programme guide, give it a few minutes - it isn’t instantaneous.</p>

<h2 id="references">References</h2>

<ul>
  <li><a href="http://parker1.co.uk/mythtv_ubuntu.php">http://parker1.co.uk/mythtv_ubuntu.php</a></li>
  <li><a href="http://www.uluga.ubuntuforums.org/showthread.php?t=942403">http://www.uluga.ubuntuforums.org/showthread.php?t=942403</a>
    <ul>
      <li><a href="http://www.uluga.ubuntuforums.org/showpost.php?p=9351505&amp;postcount=271">http://www.uluga.ubuntuforums.org/showpost.php?p=9351505&amp;postcount=271</a></li>
    </ul>
  </li>
  <li><a href="http://ubuntuforums.org/showpost.php?p=9292366&amp;postcount=3">http://ubuntuforums.org/showpost.php?p=9292366&amp;postcount=3</a></li>
  <li><a href="http://www.zedlopez.com/strangeloopiness/2010/04/mythtv_on_ubuntu_lucid_gotchas.html">http://www.zedlopez.com/strangeloopiness/2010/04/mythtv_on_ubuntu_lucid_gotchas.html</a></li>
  <li><a href="http://www.kernellabs.com/blog/?p=721">http://www.kernellabs.com/blog/?p=721</a></li>
  <li><a href="http://ubuntuforums.org/showthread.php?t=1167640">http://ubuntuforums.org/showthread.php?t=1167640</a></li>
  <li><a href="http://www.hauppauge.co.uk/site/products/data_hvr2200mc.html">http://www.hauppauge.co.uk/site/products/data_hvr2200mc.html</a></li>
  <li><a href="http://www.mythtvtalk.com/forum/hardware/8096-there-status-hvr-2250-linux-driver-2.html#post46347">http://www.mythtvtalk.com/forum/hardware/8096-there-status-hvr-2250-linux-driver-2.html#post46347</a></li>
  <li><a href="http://www.linuxtv.org/wiki/index.php/Hauppauge_WinTV-HVR-2200">http://www.linuxtv.org/wiki/index.php/Hauppauge_WinTV-HVR-2200</a></li>
  <li><a href="http://www.mythtvtalk.com/forum/hardware/12229-hvr-2200-not-picking-up-all-channels.html">http://www.mythtvtalk.com/forum/hardware/12229-hvr-2200-not-picking-up-all-channels.html</a></li>
  <li><a href="http://ubuntuforums.org/archive/index.php/t-1410407.html">http://ubuntuforums.org/archive/index.php/t-1410407.html</a></li>
</ul>

<p>The tuner card is now working under MythTV to “Watch TV”; however the programme guide is still not updating correctly over EIT.  In theory this should happen automatically after a full scan, but for some reason this seems not to be working.  It may be that this is because I have simply not left the backend to idle for long enough for an EIT scan to be initiated.</p>

<p>More news when I have it.</p>


       ]]>
      </description>
    </item>
    
    <item>
      <title>Konica Minolta C250 Printing Problems</title>
      <link>https://chrisjrob.com/2008/07/05/konica-minolta-c250-printing-problems/</link>
      <pubDate>Sat, 05 Jul 2008 00:00:00 +0000</pubDate>
      <author>chrisjrob@gmail.com (Chris Roberts)</author>
      <guid>https://chrisjrob.com/2008/07/05/konica-minolta-c250-printing-problems</guid>
      <description>
       <![CDATA[
         
           <img src="https://chrisjrob.com/assets/c250.png" align="right" alt="Featured Image">
         
         <h2 id="the-issue">The Issue</h2>

<p>From Linux, only simple print jobs will print, more complicated print jobs never come through, the data light flashes indefinitely and the photocopier needs to be rebooted.</p>

<p>We have tried various drivers from Konica Minolta, including C250, C252 and C253, but with no improvement.</p>

<!--more-->

<p>In particular we have problems printing PDFs and wep-pages in Iceweasel.  Web-pages in Konqueror seem okay, which makes you think that the problem is with the non-KDE applications, but the PDFs that won’t print from Acrobat Reader, also won’t print from KPDF.</p>

<h2 id="progress">Progress</h2>

<p>I am fortunate in having some help from <a href="http://www.thamesgroup.com/">Transcribe Thames</a>.  Simon has set-up an Ubuntu desktop and has proved that he can print fine to a C250.  Simon felt that the only difference between our two set-ups was the fact that we still had windows active directory LDAP authentication on it.  I have today removed, but printing is not improved.</p>

<h2 id="next-step">Next Step</h2>

<p>Simon has asked me to try again on a fresh Ubuntu desktop.</p>


       ]]>
      </description>
    </item>
    
  </channel> 
</rss>
