CommentStreams:Baf19fe2a0c44d91c555fd72024d29ce
So the issue with the Blue/Yellow appears to be when the serial driver loads, it for some reason resets GPIO 7 & 8. So the setting that the vendor put in /boot/config.txt gets overridden.
So, I put the following mini startup script in to run on boot. Script location-name: /etc/systemd/system/fixgpio.service Script contents below:
[Unit] Description=fix gpio for screen
[Service] Type=simple ExecStart=/usr/bin/raspi-gpio set 7-8 a2
[Install] WantedBy=multi-user.target
Then run service fixgpio enable and reboot.
--Chris