I just brought the afforementionned laptop, and obviously immediately removed Windows for Ubuntu.
When I choose to rotate my screen, It doesn't want to, but the logo with the disabled touchpad appears.
When I call monitor-sensor, I got this :
Waiting for iio-sensor-proxy to appear
+++ iio-sensor-proxy appeared
=== Has accelerometer (orientation: bottom-up)
=== No ambient light sensor
=== No proximity sensor
Any hints ? :/