Proximity Sensor (that old chestnut!)

[useroid]

Hi there,
Can someone please tell me what this does? I tell you for why (I have Gingerbread v2.3.3).

My take on this is that if you uncheck the "Turn on proximity sensor" setting, then when you are on a call the screen is always lit. On mine it still turns off and have to wait a few moments before it comes back on. Seems as if it's lagging. Anyway, I have also set the display "screen timeout" to 30 minutes, but it still does the same.

Any ideas would be most welcome as everytime I take the phone away from my ear I have to wait over a second before the screen comes on. So annoying.

Many thanks.

 

[praky]

Screen timeouts are overridden during calls by proximity sensor. This is done to save battery life. The lag you are talking about is polled I/P from proximity sensor.

You can understand it as google sync for gmail app. The faster the sync the more the battery usage. but lesser the delay.