Just bought a new TV, replaced my old LG with a SUHD Samsung and everything works nicely except my Asus Chromebox running LibreELEC which is probably the device that get´s the most usage in my home.
The TV just says NO SIGNAL when I boot up the Chromebox. When I connect the box to my old TV it works fine and I even drove to work to connect to a older not SUHD Samsung TV and it worked there and on my monitor at work via HDMI.
The TV does switch to the right input when I turn on the Chromebox but nothing comes up. I have tried every input and even 4x HDMI cables that all work on other devices. I even tried to label the input as PC but no dice.
I know this is probably more of a Samsung thing then a LibreELEC thing but decided to check if anybody had any ideas here.
If nothing works I will just have to replace the Chromebox with something else to run Kodi but I really dont want to 
that gives you a "clean" Kodi instance; i.e. it resets guisettings.xml which might contain info on the old display settings. The same process can be used to revert the change if required. No guarantee this will work, but you never know.