Contrary to what continuum says (he's usually spot on, though), it's quite normal for a HDMI to VGA adapter to be fairly warm. Ballpark figure for a HDMI to VGA decoder is around 200 mA at 5 volts.

Sounce HDMI to VGA Adapter With a built-in Active IC chip and a separate micro USB power cable, the Sounce HDMI to VGA adapter is compatible with devices that have low power HDMI ports.

I've used this HDMI to VGA adapter with good results. VGA to RGBHV cables are pretty common and not expensive unless you need insane lengths.

Most Mac laptops come with one of several sorts of digital-video connectors that require an adapter to connect to VGA or HDMI: DVI and its micro- and mini variants, or Mini DisplayPort and the ...