The HDMI output seems to be associated with the nvidia card:
You may want to look at bumblebee: https://wiki.ubuntu.com/Bumblebee
Even if you can't get HDMI working, it should give you better battery life by
shutting off the nvidia card when not in use.
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hello,
please report this using the system test application build in into
your unity dash. just search for it.
thanks you
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https://bugs.launchpad.net/bugs/1162050
Title:
Hdmi out not
** Changed in: xorg (Ubuntu)
Status: New = Invalid
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https://bugs.launchpad.net/bugs/1162050
Title:
Hdmi out not recognised
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