My question is like this one: How do I force the Raspberry Pi to turn on HDMI? , except for OpenELEC and not Raspbmc.
Basically I have a homemade media center Raspberry PI 3 with OpenELEC/KODI connected via HDMI to a dumb TV. If the TV is turned on when I power the Raspberry PI, everything works fine. However, if the Raspberry PI is powered first and then I turn on the TV, the screen stays blank; for anything on the screen to appear I need to power cycle the Raspberry PI.
So basically I need to find a way to force OpenELEC to keep HDMI turned on.
According to this post, all one has to do is to add a line
to the file
However, this file doesn't exist on my system, and the filesystem is read-only.
How do I write to the filesystem? Or, alternatively, is there another way to solve my issue?