I have decided to turn my old Mac Mini (2011) into home media center.
To do that I simply connected it to TV using HDMI cable (directly via HDMI port) and installed Remote Mouse on it as well as corresponding app on my iPhone.
Now if I use Remote Desktop / Teamviewer app - I can wake up this Mac Mini and can use Remote Mouse app from phone to control it without any problem (rather flawlessly).
However without Remote Desktop app nothing seems to wake up this Mac. It does not even show screensaver (sleep is disabled), it is just "no signal" on TV and remote mouse from phone has no effect.
I tried to change TV connection from HDMI port to Thundebolt port (thunderbolt to HDMI adapter), however this does not change anything.
I have also tried using my Bluetooth mouse connected with Mac Mini, but this also does not change anything, mouse shows it is connected, but "no signal" on TV.
Anything am I missing there?