On my Motorola x2 I have a Mirror Mode. By attaching an HDMI cable from phone to tv I can play photos,videos,downloaded movies,gaming,web.
The droid x has a micro HDMI port. You just need an appropriate cable. Micro HDMI to standard HDMI. If I remember correctly the droid x cannot do mirror mode, just one screen at a time. Either the phone screen or the TV, but not both.
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