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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 - Starting X produces a screen of static and GPU lockups (Radeon HD 7970)"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=87728">87728</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Starting X produces a screen of static and GPU lockups (Radeon HD 7970)
          </td>
        </tr>

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

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

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

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

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

        <tr>
          <th>Severity</th>
          <td>normal
          </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>toojays@toojays.net
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>I am still unable to get the radeonsi driver working with my Radeon HD 7970.
<a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED NOTOURBUG - X 1.16.1 RC 1 segfaults and reports "XXX fail to create fbo" with Radeon HD 7970."
   href="show_bug.cgi?id=84186">Bug 84186</a> was my previous attempt.

Right now I have installed:

kernel from Dave Airlie's drm-next, at commit 4e0cd68 (December 13 2014)
libgl1-mesa-glx 10.3.2-1
xserver-xorg-core 2:1.16.2.901-1
xserver-xorg-video-radeon 1:7.5.0-1

Apart from the kernel, the rest are Debian (jessie) packages.

With this configuration, X starts, but the display is a mess of grey static.
Through the static I can discern a large square which is apparently a mouse
cursor (moves when I move my mouse).

My syslog contains many complaints from the radeon driver which look like:

Dec 26 12:41:57 kano kernel: radeon 0000:01:00.0: ring 0 stalled for more than
10004msec
Dec 26 12:41:57 kano kernel: radeon 0000:01:00.0: GPU lockup (current fence id
0x0000000000000001 last fence id 0x0000000000000051 on ring 0)
Dec 26 12:41:58 kano kernel: [drm:si_gpu_check_soft_reset] MC busy: 0x00000548,
clearing.</pre>
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