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A comment on PCIe trouble with 4TB Crucial T500 NVMe SSD for >1 power cycle on MSI PRO X670-P. Parent comment

Re:PCIe trouble with 4TB Crucial T500 NVMe SSD for >1 power ... by bradfitz on Saturday December 28, 2024 @01:05AM (#42528965)
https://www.hdmi.org/spec21sub/cablepower
[ Parent | on HN ]
Re:PCIe trouble with 4TB Crucial T500 NVMe SSD for >1 power ... by rzzzt on Saturday December 28, 2024 @03:36AM (#42529518) 

  Connection 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.
[ Parent | on HN ]
Re:PCIe trouble with 4TB Crucial T500 NVMe SSD for >1 power ... by numpad0 on Saturday December 28, 2024 @08:54AM (#42531053)
No, 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.
[ Parent | on HN ]