accelerometer randomly changes orientation on HP laptop

On a HP EliteBook 840 G3, with Ubuntu 17.04 (the problem does not occur with 16.04), the display turns at random times by 90° or 180°, apparently due to the onboard accelerometer picking up vibrations caused inside the laptop by normal typing on the keyboard while the laptop is set on a table.

I have tried disabling screen orientation changes in Gnome configuration, to no avail:
gsettings set org.gnome.settings-daemon.plugins.orientation active false
gsettings set com.ubuntu.touch.system orientation-lock PrimaryOrientation

The only method that worked was to blacklist the hp_accel kernel module.

There should be at least a reliable way to disable auto orientation.