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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 - Display freeze caused by nouveau"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=105940">105940</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Display freeze caused by nouveau
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>7.7 (2012.06)
          </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>normal
          </td>
        </tr>

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

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

        <tr>
          <th>Assignee</th>
          <td>nouveau@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>stefano.biagiotti@gtn.it
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=138676" name="attach_138676" title="journalctl -k -b -1 --no-pager --no-hostname">attachment 138676</a> <a href="attachment.cgi?id=138676&action=edit" title="journalctl -k -b -1 --no-pager --no-hostname">[details]</a></span>
journalctl -k -b -1 --no-pager --no-hostname

On my Fedora 27 system, display often freezes unpredictably. Mouse and keyboard
don't work, but system is pingable and I can login using ssh.

I actually use kernel-4.15.14-300.fc27.x86_64,
xorg-x11-drv-nouveau-1.0.15-3.fc27.x86_64. 

I have two monitors connected to the display adapter. Hardware is (from lspci):
01:00.0 VGA compatible controller: NVIDIA Corporation GT215 [GeForce GT 320]
(rev a2)

Excerpt of journalctl (full journalctl in attachment):

apr 07 12:51:35 kernel: nouveau 0000:01:00.0: gr: PGRAPH TLB flush idle timeout
fail
apr 07 12:51:35 kernel: nouveau 0000:01:00.0: gr: PGRAPH_STATUS 00be0003 [BUSY
DISPATCH ENG2D RMASK TPC_RAST TPC_PROP TPC_TEX TPC_MP]
apr 07 12:51:35 kernel: nouveau 0000:01:00.0: gr: PGRAPH_VSTATUS0: 00000000 []
apr 07 12:51:35 kernel: nouveau 0000:01:00.0: gr: PGRAPH_VSTATUS1: 0000106d
[TPC_TEX TPC_MP]
apr 07 12:51:35 kernel: nouveau 0000:01:00.0: gr: PGRAPH_VSTATUS2: 00148000
[ENG2D]
apr 07 12:51:35 kernel: ------------[ cut here ]------------
apr 07 12:51:35 kernel: nouveau 0000:01:00.0: timeout
apr 07 12:51:35 kernel: WARNING: CPU: 3 PID: 1929 at
drivers/gpu/drm/nouveau/nvkm/engine/gr/g84.c:171 g84_gr_tlb_flush+0x2ce/0x360
[nouveau]
a</pre>
        </div>
      </p>


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