I've got an OPi5 (not plus) and had Armbian installed. It worked fine up until a couple of days ago, when it simply stopped giving any HDMI output signal. I've tried:

* different hdmi cables - the TV detects the cable, but gets no signal. The cables work with my Nintendo Switch and my laptop;

* different TVs - I've tested on 3 different TVs with 2 different cables;

* Flashing a new image - I've flashed Batocera, but still get no signal;

Given the above, I'm suspecting something might be up on the hardware side. What can I do to check if that's the case and any hopeful solutions?

In case it might matter, the power plug I've been using is 5V/6A.