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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 - gl_renderer missing GLESv1 support"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=89385">89385</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>gl_renderer missing GLESv1 support
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Wayland
          </td>
        </tr>

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

        <tr>
          <th>Hardware</th>
          <td>x86 (IA32)
          </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>weston
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>bonbons@sysophe.eu
          </td>
        </tr></table>
      <p>
        <div>
        <pre>On a rather old system (i855GM), trying to start weston (1.6.1) fails with
rather unclear error message:
[21:49:59.073] Loading module '/usr/lib/weston/drm-backend.so'
[21:49:59.078] initializing drm backend
[21:49:59.084] using /dev/dri/card0
[21:49:59.084] Loading module '/usr/lib/weston/gl-renderer.so'
[21:49:59.157] failed to choose EGL config
[21:49:59.157] EGL error state: EGL_SUCCESS (0x3000)
[21:49:59.157] failed to initialize egl
[21:49:59.168] fatal: failed to create compositor

The reason of that failure is that the system does not provide any config
matching expectation.

System only provides configs with EGL_RENDERABLE_TYPE=EGL_OPENGL_ES_BIT |
EGL_OPENGL_BIT while weston wants EGL_OPENGL_ES2_BIT.

In addition EGL_*_SIZE is requested with 1-bit size while system has either
16bit (R=5,G=6,B=5) or 32bit (A=8,R=8,G=8,B=8) pixels.


It would be good if weston's gl_renderer could handle GLESv1 systems and, until
then, provide a more explicit error message.</pre>
        </div>
      </p>
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