LG55 GI EVO with Arc installed, just HDMI to correct TV HDMI.
After setup the Arch was the permanent sound output device. Attempts to select TV speakers would switch back to HDMI Arch.
One solution suggested was disable simple-link on TV. This works. It appears this new TV may not be full compatibility with the Arch. If anybody else has experienced this, or just smart enough to know a work around and solution it would be most welcome.
Best answer by GuitarSuperstar
What exactly is the problem you are experiencing? It sounds like the Arc and TV’s CEC function is working as it should. If you want the TV audio playing out of the Arc, enable Simplink. If you want the TV audio playing out of the TV speakers, disable Simplink.