Online state for samsungtv is jumping when TV is idle

[kennedyshead]

Description:

Checklist:

• The code change is tested and works locally.
• Local tests with tox run successfully. Your PR cannot be merged unless tests pass

[MartinHjelmare]

Please add an explanation to how the code change solves the problem.

[kennedyshead]

The problem is actually the way the socket works on the different samsung models, I have 2 different samsung tv:s and one of them open the UDP port in idle as-well. the other one does not and only opens up the port when its on.

Ping on the other hand works on both tv:s and they respond.

However, Im not sure on if this works on all models.

The original implementation just sent a dummy command to the tv, which worked with some of them but not any of mine (It have worked earlier).

I have:
UE40F5505
and
UE60KS7005

Both works flawless with ping for fetching online state. (All other enabled buttons works as well).

[kennedyshead]

I would however like to do this through device_tracker (if precent in setup).
This actually goes for more devices, but I cant figure out how to implement that at this time.

[ajmm]

tested and works ok for me!

[pplucky]

This actually fixed the on/off status not being shown properly, but now I can no longer turn off the tv... Can anyone check/confirm please?

[kennedyshead]

@pplucky please create an issue

[pratesbh]

@pplucky I confirm that I also can't turn off off or send any command to my Samsung UN46D5500 TV.