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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 - gdm freezes when using iris driver on Intel HD520"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=111535">111535</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>gdm freezes when using iris driver on Intel HD520
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </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>not set
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Drivers/Gallium/Iris
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-3d-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>david@ixit.cz
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-3d-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>HW: Dell 7350 Intel HD520.
SW: Gentoo, kernel 5.2.11, ~amd64, Wayland setup.

When using
MESA_LOADER_DRIVER_OVERRIDE=iris
in /etc/environment, gdm freeze. Only printed lines into logs are:

gnome-shell[932]: meta_drm_buffer_gbm_new failed: drmModeAddFB failed:
Nepřípustný argument (translated as Unacceptable argument)
gnome-shell[932]: meta_drm_buffer_gbm_new failed: drmModeAddFB failed:
Nepřípustný argument (translated as Unacceptable argument)

I tried compile git mesa with debug, but it didn't get me further.

Feel free to ask me to get specific debugging, can compile mesa/libdrm or
kernel with specific patches.</pre>
        </div>
      </p>


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