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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 --- - Powersaving don't work on second card"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=64950">64950</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>xorg-driver-ati@lists.x.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Powersaving don't work on second card
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr>

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

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

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>lexa@cfotr.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

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

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

        <tr>
          <th>Component</th>
          <td>Driver/Radeon
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=79751" name="attach_79751" title="dmesg from machine with two cards.">attachment 79751</a> <a href="attachment.cgi?id=79751&action=edit" title="dmesg from machine with two cards.">[details]</a></span>
dmesg from machine with two cards.

I have a laptop with two ati cards:
Mobility Radeon HD 6620G 
Radeon HD 6400M

Enabled powersave mode on both cards:

#echo dynpm > /sys/class/drm/card0/device/power_method
#echo dynpm > /sys/class/drm/card1/device/power_method

Clock speed on the first card reduced almost immediatly:

#cat /sys/kernel/debug/dri/0/radeon_pm_info
default engine clock: 200000 kHz
current engine clock: 7990 kHz
default memory clock: 667000 kHz

But second card don't react at all:

#cat  /sys/kernel/debug/dri/1/radeon_pm_info
default engine clock: 800000 kHz
current engine clock: 799940 kHz
default memory clock: 800000 kHz
current memory clock: 799870 kHz
voltage: 900 mV</pre>
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