Double tap to wake in working correctly in your devices? I've some problem... the option is enabled but it works once in ten... Thanks...
Seems to work for me 9 times out of 10. Occasionally it will not work but I will double tap again immediately and it will then register.
Update to Android 8.1.0 with May 2018 security patch. Factory reset. Tap to wake is still not woking. :(
I had to lift the phone in order to work... but not is resting on the desk... same behavior?
I also wiped the phone (in recovery mode), installed Android P and Oreo again. 100% clean phone.
But same problem, i have to tap 4-5-6 times to wake... hardware problem?