I use a Sony W9 2013 TV with cable TV receiver (Cisco 4682) connected to HDMI1 and RasPlex connected to HDMI3.
When I switch from RasPlex (HDMI3) to TV's built in tuner the video stops, and resumes after I return to RasPlex, which is great.
However, when I switch to cable (HDMI1) the video does not pause.
The (provider's) software on the cable box does not suppot CEC (even though the Cisco HW itself supports it), and I assume that this is the source of the problem, but looking at the logs, the TV notifies RasPlex of the "routing change" and again I assume that this should work.
Any ideas?