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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 --- - No display after suspend to RAM"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=83168">83168</a>
          </td>
        </tr>

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

        <tr>
          <th>Summary</th>
          <td>No display after suspend to RAM
          </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>nsajko@gmail.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/nouveau
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=105362" name="attach_105362" title="the kernel log">attachment 105362</a> <a href="attachment.cgi?id=105362&action=edit" title="the kernel log">[details]</a></span>
the kernel log

When Linux resumes after suspension to RAM, I get no display until next  
boot, but the backlight is on. I think this was true since I started     
using this distro, but I rarely tried to use suspend.                   
This happens invariantly to Xorg.                                       
Although my hardware is 64-bit, I use a 32-bit Linux.                   

Software versions:                                                      

* Linux 3.16.1                                                          

* libdrm 2.4.56                                                         

* mesa 10.2.6                                                           

* xf86-video-nouveau 1.0.10                                             

nouveau reports errors like these to kernel log when the display should 
turn back on:                                                           

[  153.783362] nouveau E[    PBUS][0000:01:00.0] MMIO write of 0x00001e00 FAULT
at 0x6813c8
[  153.788735] nouveau E[    PBUS][0000:01:00.0] MMIO write of 0x00002e00 FAULT
at 0x6813c8
[  153.791840] nouveau E[    PBUS][0000:01:00.0] MMIO write of 0xf5153d80 FAULT
at 0x6813c8</pre>
        </div>
      </p>
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