Why does a male HDMI to female DisplayPort adapter need

>>61395106
Needs MOAR POWAH.

to power it

>>61395126
Oh so it's not just a simple "wiring" adapter but in fact an active converter?

Fuck, who invented this retarded fucking DP?

>>61395146
hdmi has royalties
displayport is royalty free

displayport wins

>>61395146
I'd blame HDMI for not being able to draw power through the GPU before I'd blame the DP

>>61395186
pretty sure hdmi is able to provide power, ethernet, audio and video

It doesn't technically need one, but I'm sure there would have to be some fancy hacks done to get the display host to supply power to the adapter via HDMI. USB power is simple to implement.

Active adaptors. So you can use freesync.

>>61395230
(Also it's only a fraction of a watt.)

>>61395203
Why does DP need power via USB to function then?

>>61395203
>hdmi is able to provide power
It isn't, even the Chromecast dongle and the Intel Compute Stick thing need separate power via USB.

File: DP shit adapter.jpg (85KB, 879x515px) Image search: [Google]

85KB, 879x515px

>$60
>even with $20 off it's $40
JUST

>>61395253
HDMI ports deliver a minimum amount of power, but some devices are able to provide more than others, so if your device isn't providing enough you can use the USB to power it.

>>61395308
use aliexpress, you can probably find for for 1$

>>61395276
>It isn't
Yes it is.
http://www.hdmi.org/learningcenter/kb.aspx?c=13#42

>buy active HDMI to DP adapter
>sound plays on the PC internal speaker instead of the TV
WHY

>>61395333
The cheapest on ebay is $30

>>61395276
It literally is. You're just not considering two things:
1) all devices are not identical; some things require more power than others, and
2) the Chromecast is on the wrong end anyway since it's the host, not the client.

>>61395370
Because the HDMI to DP DD only handles sound you'd need a second one for audio.

>Retard version, you only have the video conversion circuit.

>>61395416
>2) the Chromecast is on the wrong end anyway since it's the host, not the client.
Doesn't matter.

>tfw my thinkpad doesn't have hdmi
>bought DP to HDMI cable
>works on everything but an epson projector
>it's detected and all but there's no image
well fug

>>61395416
>not all devices are identical;
Fixed.
Some devices are identical.

>>61395373
He didn't say to use eBay, dumbass.

>>61395609
No, strictly speaking no devices are identical.

#starstuff #motherfucker

>>61395463
But the item description said it allows both video and audio to pass through https://www.amazon.co.uk/CSL-Displayport-adapter-transmission-products/dp/B015FM3SRE/ref=sr_1_6?ie=UTF8&qid=1499772879&sr=8-6&keywords=hdmi+dp+adaptor+with+sound

Did I goof up?

>>61395171
Display port almost fried my fucking PC, too many cheap knockoffs powering pin 20 when it should be not connected.

>>61395540
Did you try different resolutions on your laptop? Also, forcing it with fn + projector key and setting git to duplicate should work