<html>
    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <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 --- - [dpm] rs880: Power usage doesn't drop with dpm=1"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=67321">67321</a>
          </td>
        </tr>

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

        <tr>
          <th>Summary</th>
          <td>[dpm] rs880: Power usage doesn't drop with dpm=1
          </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>All
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>suse@kabelfunk.de
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86 (IA32)
          </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>My laptop (Lenovo Edge 11) has the Mobility Radeon HD 4200 Series chip (RS880M) 
(windows says it's a HD 4225)

It consume with fglrx ~16W. (kernel 3.4.47)
With radeon (kernel 3.11-rc2) and power_profile=low ~20W
With radeon.dpm=1 (kernel 3.11-rc2) ~20W

linux-7goe:/home/dom # echo battery
<span class="quote">>/sys/class/drm/card0/device/power_dpm_state</span >
linux-7goe:/home/dom # echo low>
/sys/class/drm/card0/device/power_dpm_force_performance_level 
linux-7goe:/home/dom # modprobe ec_sys
linux-7goe:/home/dom # cat /sys/kernel/debug/dri/64/radeon_pm_info 
uvd    vclk: 0 dclk: 0
power level 0    sclk: 20000 vddc_index: 1

The fglrx still uses ~4W less than radeon.dpm=1

It would be great when radeon.dpm=1 uses as less power as the fglrx driver.</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
</html>