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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 - Screen goes black when booting kernel with KMS enabled."
   href="https://bugs.freedesktop.org/show_bug.cgi?id=98813">98813</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Screen goes black when booting kernel with KMS enabled.
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </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>normal
          </td>
        </tr>

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

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

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

        <tr>
          <th>Reporter</th>
          <td>shadoe_da_deaddonkey@yahoo.com
          </td>
        </tr>

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

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=128131" name="attach_128131" title="dmesg output with drm.debug=14">attachment 128131</a> <a href="attachment.cgi?id=128131&action=edit" title="dmesg output with drm.debug=14">[details]</a></span>
dmesg output with drm.debug=14

Attached is output from "dmesg" and "lshw".


-- system architecture: 64-bit

-- kernel: 4.9.0-994

-- Linux distribution: Ubuntu Gnome 16.04

-- Machine or mobo model: Tesco Windows Connect

-- Display connector: ???

I'm using a  10.1-inch Cherry Trail tablet. The kernel is drm-intel-nightly
branch (drm.debug=14) and is 64-bit booting from a 32-bit uefi with grub2
(dunno if that's relevant or not).

When I boot, text scrolls down the screen and after a few seconds the text gets
wiped off leaving a black screen.  This issue does not correct itself, but I
can type commands into a tty without remote access (just can't see the commands
I type in).

I'm not sure if this is the right channel to report this, and I appreciate
there are other details I may need to provide.

Thanks.

p.s 
As noted in similar bug reports, there are other problems with the device as
well. I don't have any audio (not sure if that's because I've not got the right
driver), and there's problems with hardware buttons and sleep mode.</pre>
        </div>
      </p>


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