I have the Lenovo yoga 720 13" 2017. I installed ubuntu 17.10 after changing bios settings (SSD controller to AHCI and UEFI to legacy) as advised here. Install is working correctly and even trackpad works out-of-the-box.
I have an issue with the touchscreen not rotating when I switch to tablet mode, however - I was able to get it working by running the command:
watch -n 0.1 cat '/sys/bus/iio/devices/iio:device'*/*raw*
So my question is how do I get this command to run in the background on boot. Plus it would be nice if I would be able to present the on-screen keyboard when the physicl keyboard is disabled, it gets disabled but only when I flip it a full 360 degrees but not when I am using tent mode. And the on-screen keyboard is coming up every time I am touching the screen - I had to use gnome extension - Block caribou, but it disables the touch keyboard completely.