Properly designed HDMI switches have an outboard power supply - anything that is powered off the HDMI cable itself is against the HDMI specification, because that 5V line is for hot plug detect.
In a lot of cases, devices like this can cause problems with handshaking because they draw down that 5V power line.
Reader Comments (Page 1 of 1)
TrentD @ Dec 3rd 2007 3:48PM
Properly designed HDMI switches have an outboard power supply - anything that is powered off the HDMI cable itself is against the HDMI specification, because that 5V line is for hot plug detect.
In a lot of cases, devices like this can cause problems with handshaking because they draw down that 5V power line.