Most I remember was this, but it ended with using Ubuntu he reported the touchpad worked with no mods.
Could be the latest LinuxMint is the same. I would recommend LinuxMint if you are a Linux noob.
Saw your message on there – will give xrandr a go 😀
Everything is working fine on manjaro except the SD card reader is intermittent in function. I’ll keep trying to lean my set up for battery optimisation…