Thanks paradadf, I worked it out, the file I want to edit is the config.txt not the recalboxconfig file as I thought. All I had to do was uncomment out the line about forcing HDMI safe. Once I did this, the system can now display on my HDMI port. yay!

Hello All,   I have a Samsung TV that sadly only has 2 HDMI ports, when I connect my recalbox to port 2, it says Mode not Supported. Doing some reading online, it seems this might be due to the fact that this is a "HD ready" and not "HD" TV, and needs the output from the HDMI port set to 1080i.   I am unsure how to do this. I have seen a lot of posts regarding how to change the display on the emulators, but not the main box itself. It appears that if an emulator is running - the HDMI can read the input and displays the picture.   Can someone guide me to the right direction? I think I have to edit something in the recalbox.conf file, but I am not exactly sure what.

That'll be why it's not working then, and why I can't enable it! Thank you for saving me hours of frustration.   I have not tried booting with the PS4 controller plugged in via USB, I will try this as well.

Hi All,   I just installed Recalbox and for the most part it's working but when I try to pair a Bluetooth controller, it does not work. I am trying to pair a PS4 controller, and realize this might be an issue. So I have turned bluetooth on on my phone to see if I am able to see the Pi's Bluetooth - I am not. Is there any way to enable bluetooth on the recalbox or test to see if the bluetooth is working? I am unfamiliar with this type of linux build, so I am not really sure what to try. Does anyone have any suggestions?   I should note that the PS4 controller, when connected via USB still is not detected.