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      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Black screen or freeze on radeon driver on AMD 6470M / Intel HD 3000"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=67901">67901</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dri-devel@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Black screen or freeze on radeon driver on AMD 6470M / Intel HD 3000
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>xpressrazor@gmail.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Drivers/DRI/R600
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr></table>
      <p>
        <div>
        <pre>I have hybrid graphics card setup (AMD 6470M / Intel HD 3000 sandy bridge). I
followed <a href="http://www.phoronix.com/scan.php?page=news_item&px=MTQyNDE">http://www.phoronix.com/scan.php?page=news_item&px=MTQyNDE</a> and
installed 3.11 kernel on ubuntu 13.10 daily. I also installed mesa 9.2 using
xorg-edgers ppa. When I tried to boot using radeon.dpm=1, it had shown a
message about missing driver (CAICOS), therefore I replaced all drivers in
/lib/firmware/radeon with the one downloaded from
<a href="http://people.freedesktop.org/~agd5f/radeon_ucode/">http://people.freedesktop.org/~agd5f/radeon_ucode/</a>. I ran  "update-initramfs
-u", after which the message had gone. 

This time when I tried to boot using radeon.dpm=1 and it froze. I even tried to
turn ON AMD graphics card using vgaswitcheroo
(<a href="https://help.ubuntu.com/community/HybridGraphics">https://help.ubuntu.com/community/HybridGraphics</a>). When I logout, and tried to
login it sometimes showed black screen or sometimes froze.

I had seen the development page (I don't remember where), and the hybrid
graphics card switching was not fully fixed. Is this still the problem?

Thanks !!

$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Seymour
[Radeon HD 6400M/7400M Series] (rev ff)</pre>
        </div>
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