Does HDMI output work on the L502X?

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http://askubuntu.com – I would like to add a monitor to my XPS 15 L502X but when I connect a monitor using HDMI Ubuntu 11.10 does not recognise and I cannot extend my display on to that monitor. There are past questions which tend to conclude that this is not possible but they are rather old, I have found some rumblings on the internet that this is now possible but no specific details. Is it now possible to get HDMI output working on my L502X? (HowTos)