May be that the pins on the cable are a bit wonky
not an issue on one machine but the other is a bit more worn or wasn't made as well? Get a cable from Amazon and if that doesn't fix it send it back.
( garold you're on mute I SAID YOU'RE ON MUTE, Mon 12 Jul 2021, 15:45, archived)

I'll give that a go, ta

( Queef Smegwin U r a 🔔🔚, Mon 12 Jul 2021, 16:33, archived)

Or you could try covering it in jam and spunking in its hdmi

( broadsword now that's fresh, Mon 12 Jul 2021, 17:01, archived)

b3ta.com/talk/8306680
( Queef Smegwin U r a 🔔🔚, Mon 12 Jul 2021, 18:04, archived)