Comment # 9 on bug 49943 from Alex Deucher

(In reply to comment #8)
> Reproducible with linux-3.6.0-rc6. If it is a duplicate of bug 51042,
> shouldn't this be fixed now, or have the patches referenced in that bug not
> been committed yet
> (http://comments.gmane.org/gmane.comp.freedesktop.xorg.drivers.ati/22107, or
> more specific the patches by Daniel Vetter:
> http://lists.freedesktop.org/archives/dri-devel/2012-May/023407.html)?

If you disable polling, it also disables hotplug propagation since they share
the same infrastructure in the common drm code.  Daniel's patches have not been
merged upstream yet.