The Joule then connected correctly to the monitor and I was able to install Ubuntu correctly. (A second Joule I was working with experienced the same display issue; however, the above solution did not resolve it.)
This worked for a time and I was able to control the TurtleBot3 using the android app, but the Joule returned to the state where it doesn't output from the HDMI.
I have attempted to reflash the BIOS as above, but it had no effect.
The Joule still responds when pinged as it did before the display issue rearose.
How can I resolve this issue to allow the Joule to output correctly to the monitor? Is it possible to restore the Joule to its factory settings?
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