5 ms·
https://www.hdmi.org/spec21sub/cablepower https://www.hdmi.org/spec21sub/cablepower
by bradfitz 2y ago
https://www.hdmi.org/spec21sub/cablepower https://www.hdmi.org/spec21sub/cablepower
- rzzzt 2y agoConnection is the same as attaching an ordinary, "wired" HDMI Cable, except that active cables can only be attached in one direction: One end of the cable is specifically labeled for attachment to the HDMI Source (transmitting) device, and the other end of the cable must be attached to the HDMI Sink (receiving) device. If the cable is attached in reverse, no damage will occur, but the connection will not work. HDMI Cables with HDMI Cable Power include a separate power connector for use with source devices that do not support the HDMI Cable Power feature. This is not your run-of-the-mill HDMI cable for sure.
- numpad0 2y agoNo, not that feature. HDMI supported 5V/55mA power out for years. It's meant for EDID ROM chips and maybe HDMI selectors too, not Linux based computers, but some TVs could take it in gross violation of specifications and its spirits.