Try to run getedid create at home before travelling and you'll see... If it does not help, you may remove it through getedid delete and then reboot LE.
Well, that sounds a bit like "hit or miss"...
This might work is not so funny when away from home and Your Rpi shows... Nothing.
And bringing a computer for this purpose only (removing getedid data) sounds just a bit, well, ridiculous.