[Matt Devo]

Hi im experiencing black screen all of a sudden when i boot. My set up is Asus Chromebox (running Kodi 15.2.. and OpenElec 6.01 Generic x86_64) connected with HDMI to Harman Kardon avr260 which connects to a Sony Bravia tv with HDMI. Used to work fine for a year and then suddenly black screen after boot. The Chromebox boots fine as it is showing online in the remote. It used to work when i turned things on in a sequence but that has started to fail now. Have tried with a Hp Chromebox aswell it has same problem. Both work fine when connected directly to TV.
Have tried the custom xorg.conf file fix from the wiki that crippled my entire system and it couldnt boot anymore, got message about bad file ended up restoring to stock and reloading openelec. All help is appreciated as I am tearing my hair out...

First, start with a fresh install of 6.0.199, since that's the optimal version to use. I'm not sure what xorg you're referring to since there's none in the ChromeBox wiki, but anything on the OE wiki is likely to be out of date. Most likely you just need an autostart.sh file to set the proper resolution and refresh rate on startup since your AVR appears to be making a mess of the EDID info