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        <tr>
          <th>Priority</th>
          <td>high
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [nv Regression]Many pm_pc8 subcases fail"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=73642">73642</a>
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[nv Regression]Many pm_pc8 subcases fail
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

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

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>huax.lu@intel.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

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

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

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr></table>
      <p>
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        <pre>Created <span class=""><a href="attachment.cgi?id=92108" name="attach_92108" title="dmesg">attachment 92108</a> <a href="attachment.cgi?id=92108&action=edit" title="dmesg">[details]</a></span>
dmesg

System Environment:
--------------------------
Platform: Haswell(nv)
Kernel: (drm-intel-nightly)07db3e0b8568d81226e2e17dbb1b340668cb2287

Bug detailed description:
-------------------------
Many pm_pc8 subcases fail on haswell with NVIDIA card GT440.
They fail on -nightly and -queued kernel, work well on -fixes kernel. 

The latest known good commit:d299cce76e001406df40c4ff712b33fccbce1222
The latest known bad commit: 534e3730732ee01e43cefa02240b0552a62781e4

run subcase i2c
output:
Runtime PM support: 1
PC8 residency support: 0
Test assertion failure function enable_one_screen, file pm_pc8.c:354:
Last errno: 5, Input/output error
Failed assertion: enable_one_screen_with_type(data, SCREEN_TYPE_ANY)
Subtest i2c: FAIL

Reproduce steps:
----------------
1. ./pm_pc8 --run-subtest i2c</pre>
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