$ 3ddesk
Attempting to start 3ddesktop server.
Daemon started.  Run 3ddesk to activate.
libGL error: drmMap of framebuffer failed (Invalid argument)
libGL error: reverting to (slow) indirect rendering
3ddeskd: glXIsDirect failed, no Direct Rendering possible!
3ddeskd: Please configure hardware acceleration.  Exiting.
Server not found after waiting 5 seconds.
Could not find server.
Try starting manually (3ddeskd)