Hi there,

I currently use CM11 nightly from 27-06-2014 and my device stopped auto rotating. I disabled it and enabled again, did not help. Reboot did not help. Shutdown and boot did not help.

For now I need to use an app to rotate the screen manually.....

How do I get auto rotate back? How can I calibrate the sensor?

What about /system/etc/sensors_calib.conf ? Can you there force Android to calibrate sensors?

SOLVED: I completely wiped the phone and restored the nandroid backup. Sensors work again now.
Sony Xperia Z1 - Software 14.4.A.0.108 root - Android 4.4.4