title: Unable to launch weston on linux yocto from ssh
body: <p>I have the error <em>"no drm device found"</em> as shown below.
  I thinks the mail error is fatal: failed to create compoitor backend. 
  I have the following in my lib 
  desktop-shell.so     drm-backend.so       fbdev-backend.so     fullscreen-shell.so  gl-renderer.so       hmi-controller.so    ivi-shell.so         wayland-backend.so   x11-backend.so</p>
  
  <pre class="lang-none prettyprint-override"><code>root@salvator-x:/etc/systemd/system/multi-user.target.wants# /usr/bin/weston-launch \
    -u root --  --idle-time=0 --config=/etc/xdg/weston/weston-drm-hdmi.ini  $OPTARGS
  Date: 2018-02-26 UTC
  [21:29:08.949] weston 1.11.0
                 http://wayland.freedesktop.org
                 Bug reports to: https://bugs.freedesktop.org/enter_bug.cgi?product=Wayland&amp;component=weston&amp;version=1.11.0
                 Build: a9df8430-dirty v4l2-renderer: Fix calcluation of clip region (2017-04-13 18:25:00 +0900)
  [21:29:08.949] OS: Linux, 4.9.0-yocto-standard, #1 SMP PREEMPT Mon Feb 26 17:46:03 EST 2018, aarch64
  [21:29:08.949] Using config file '/etc/xdg/weston/weston-drm-hdmi.ini'
  [21:29:08.950] Output repaint window is 34 ms maximum.
  [21:29:08.950] Loading module '/usr/lib/weston/drm-backend.so'
  [21:29:08.954] initializing drm backend
  [21:29:08.954] logind: failed to get session seat
  [21:29:08.954] logind: cannot setup systemd-logind helper (-61), using legacy fallback
  [21:29:08.955] no drm device found
  [21:29:08.955] fatal: failed to create compositor backend
  failed to restore keyboard mode: Bad file descriptor
  failed to set KD_TEXT mode on tty: Bad file descriptor
  could not reset vt handling
  </code></pre>
  
  <p>How do I launch weston on linux yocto?</p>
  
  <hr>
  
  <p>Here is the image:</p>
  
  <p><a href="https://i.stack.imgur.com/cOTyg.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/cOTyg.jpg" alt="enter image description here"></a></p>