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      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Kernel 3.17.3: drm/radeon: fix speaker allocation setup --> cannot $startx"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=86571">86571</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Kernel 3.17.3: drm/radeon: fix speaker allocation setup --> cannot $startx
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr>

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

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

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

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

        <tr>
          <th>Severity</th>
          <td>major
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

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

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

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

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Since Linux 3.17.3 calling $startx will freeze or reboot my system.
I have isolated the following commit as the cause of my problem:

commit ffe0245532b98efc4bc0e06f29c51d3f0e471152
Author: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>>
Date:   Mon Oct 13 11:51:50 2014 -0400

    drm/radeon: fix speaker allocation setup

    commit 4910403836ded89803fab201d4b5caaa85de3a89 upstream.

    If the sad_count is 0, set the hw to stereo and change
    the error message to a warn.  A lot of monitors don't
    set the speaker allocation block.

    Signed-off-by: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>>
    Signed-off-by: Greg Kroah-Hartman <<a href="mailto:gregkh@linuxfoundation.org">gregkh@linuxfoundation.org</a>>

Reverting this brings things back to normal.

My card:
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Oland
XT [Radeon HD 8670 / R7 250]
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cape
Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series]

Screen:
Samsung S22D300HY (via HDMI)

OS:
Archlinux up-2-date... Mesa 10.3.3 + patch from <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - Random radeonsi crashes with mesa 10.3.x"
   href="show_bug.cgi?id=85647">bug 85647</a>, xorg-server 1.16.2,
xf86-video-ati 7.5.0

Can provide additional infos if needed.

Thanks!</pre>
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