The 5.1 is detected!

My home theater is well equipped: Good TV, 5.1 kit with wireless rear speakers (a Z5450) and two optical inputs.
Problem: I have four devices connected to the TV, all with an interest in the use of my 5.1 kit. Change its part is not in the agenda, especially as the wireless link rear speakers complicates the situation.

Operations Result: ps3, ps4, Freebox Revolution work perfectly and issue 5.1 as it should (in Dolby Surround or DTS according to the source). The Wii-U remains confined to the stereo. Apparently, support for 5.1 on this console is very, very basic but then (both more modern than the other consoles and even more part-time, with a few management signals, and support per game)

In short, it is a good product that actually manages 5.1 optics. There's even a mode called "advance" that can duplicate the DTS-HD sound on the second HDMI output while the video switches to the first output. What connection solve many problems in a residential installation.

Minor drawbacks: - The support time to pause the device is long enough. The detection of a universal remote control does not work suddenly (or so, we must tweak advanced settings).
- The included power supply has an American / Japanese outlet. The transformer is supported by 110-240V against. Buying a single adequate EXT socket will do.