beaglebone black apparently hdmi failed after ubuntu boot

After successfully booting ubuntu Cli and installing packages to sd card.

I decided to reboot and the result is no hdmi output on any screen using an experia arc hdmi cable.

I can access the device as a removable hard drive or read documentation via ip address so it is up and running.

I just have no hdmi on default os or sd card image.

Any ideas other than trying another cable? And then an RMA if it doesn't spring into life.


Same as my previous response.