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Did anyone notice that during the call, the screen isn't actually turned off, the backlight is still on, it just shows blank screen. You can see this if you are in a dark ambient because of the backlight bleed on the screen.
So, while you are talking, you will lose battery charge on call and on screen backlight. I don't think it is an economical way of spending battery juice.
So actually the screen is on the whole time during the call, you just can't see it because there is nothing showing on the screen...
Or is this just my device?
X10 2.1 nordic.
I noticed that, anyway during a call, it obviously drains the battery even though the screen switched off & the use of the Proximity sensor is to switch off the screen during a call to prevent the screen from touching than the economizing the battery
I noticed a big improvement of the battery with the 2.1 Update.
I've noticed it too, I think this would waste more battery? or is it the opposite?
Of course it uses more battery power. I can't rememeber if the same situation is in 1.6. Can anyone check?
It does use current, but i think its a minor amount. The reason why they leave it active but black for example, is that if you need to quickly access the dial pad you can do that, without waiting for a second or two for the screen to power on.
I recall back on 1.6 at times it felt like eternity that it would take to bring up the dial pad during calls. I'm not sure but check to see if the screen does in fact turn off completely after a certain duration, since that would be ok.
Nope, it doesn't turn off and I wouldn't say it's a minor amount of power, because the screen is one of the most power hungry components in our phones. So if you are in a call for say 30 mins just think how much battery that would suck out. And for me, for no good reason, when I'm on the phone I don't need the screen, that is why the proximity sensor exists, to turn the screen on and off
I understand, but you have to understand how the lcd works. Producing colours or tints cause the device to use more power. The brighter the colour the more power. Since white is the brightest tint or colour, whichever you prefer, black being the opposite would use the least amount of power for the screen being on. Unless this is a type of lcd matrix that uses most power with black I read about that before somewhere. But I highly doubt SE would do that. But considering its a concern of yours there might be an dialer app that negates this hmm.
At the Sony Ericssons products Blog there was a video about the new features at 2.1
It tells also that you could press the Power-Button to turn off the light during calls.
I´ve not testet this yet, maybe of you could test this. ;-)
kindred7 said:
It does use current, but i think its a minor amount. The reason why they leave it active but black for example, is that if you need to quickly access the dial pad you can do that, without waiting for a second or two for the screen to power on.
I recall back on 1.6 at times it felt like eternity that it would take to bring up the dial pad during calls. I'm not sure but check to see if the screen does in fact turn off completely after a certain duration, since that would be ok.
Click to expand...
Click to collapse
It does not take a second or 2 for the screen to come back on. Just test it yourself by pressing the power button, it comes on within 1 second. On a side note, in the 1.6 days the screen would stay on completely and if you press the power button it hangs up. That was a terrible implementation.
outie said:
It does not take a second or 2 for the screen to come back on. Just test it yourself by pressing the power button, it comes on within 1 second. On a side note, in the 1.6 days the screen would stay on completely and if you press the power button it hangs up. That was a terrible implementation.
Click to expand...
Click to collapse
Im on 2.1, cant check it anymore. It was rather sluggish for me on 1.6. The difference may be that I had pictures for all my contacts. I like it just fine.
Yes, you can turn the screen completely off by pressing power button, I've just tried. I don't understand why do I have to do it with my finger when I have proximity sensor that works just fine when it wakes up the screen from complete power off when I move it from my face. Seems like a bug to me.
LCD screen consumes the same amount of power no matter what image it is showing, black or white, so as far as I'm concerned showing black screen during a call does absolutely nothing for me, especially not for my battery. This is so trivial that I can't believe they missed it. Or maybe some SE engineer thought X10 has AMOLED screen so it doesn't consume power when it's displaying black...
Personally, I prefer the screen turn off compared to the screen lock in 1.6 as I had a hard time unlocking the screen lock when you need to use the dial pad when on the phone.
So when you are on the phone, the screen turns off and when you move your phone away from the ear, the screen turns on.
Sent from my X10i using XDA App
dpishta said:
Yes, you can turn the screen completely off by pressing power button, I've just tried. I don't understand why do I have to do it with my finger when I have proximity sensor that works just fine when it wakes up the screen from complete power off when I move it from my face. Seems like a bug to me.
LCD screen consumes the same amount of power no matter what image it is showing, black or white, so as far as I'm concerned showing black screen during a call does absolutely nothing for me, especially not for my battery. This is so trivial that I can't believe they missed it. Or maybe some SE engineer thought X10 has AMOLED screen so it doesn't consume power when it's displaying black...
Click to expand...
Click to collapse
You are 100% correct, my mistake, lcds do use the same amount of power due to the backlight. I was just on the phone for 50 minutes and my battery went down by 5%, so i think its not bad at all. I was even on wcdma/gsm.
Drop SE an email to inquire on it maybe?
Well, maybe I'm exaggerating, but this kind of screen backlight beahaviour just isn't logical to me. You say you lost 5% on 50 min call? Hmm, that really seems low...
Where can I send inquiry to SE?
i have the same problem guys.....any solution yet?
working on a more accurate solution atm.
Hi I have just got a HTC radar as a company phone and am getting some odd behavior when dialling
Sometimes it works like expected other times when I press call the screen goes off and will not come back on no matter what I do until the other end pick the call up
Now that's not so bad until you call voicemail when nothing makes screen come on ie tried moving away from anything (in case proximity sensor turning it off ) tried the on/off button volume even camera button nothing works so I can't press option 1/2 etc
Only way I can end the call is to remove bottom cap and take sim card out
This happens on around 50% of all calls and is really bugging me , if its connected to a bluetooth car kit ,the car kit can end it ok
Everytime on bt kit the screen goes off with pressing call
Anyone else having this problem?
Sent from my HTC Sensation Z710e using Tapatalk
Nope, mine works perfect. Sad to hear tho...
Had that problem with my dell venue pro. Its a fix for it that I found under the dell venue pro forums of xda. Not sure if u can get the same access for the htc
Sent from my Venue Pro using XDA Windows Phone 7 App
fireblade893 said:
Hi I have just got a HTC radar as a company phone and am getting some odd behavior when dialling
Sometimes it works like expected other times when I press call the screen goes off and will not come back on no matter what I do until the other end pick the call up
Now that's not so bad until you call voicemail when nothing makes screen come on ie tried moving away from anything (in case proximity sensor turning it off ) tried the on/off button volume even camera button nothing works so I can't press option 1/2 etc
Only way I can end the call is to remove bottom cap and take sim card out
This happens on around 50% of all calls and is really bugging me , if its connected to a bluetooth car kit ,the car kit can end it ok
Everytime on bt kit the screen goes off with pressing call
Anyone else having this problem?
Sent from my HTC Sensation Z710e using Tapatalk
Click to expand...
Click to collapse
Do you have a screen protector? If so it could be one of poor quality and is interfering with your screen. Remove it if you got it. Also it can mess up your ambient light sensor/proximity sensor.
MJCS said:
Do you have a screen protector? If so it could be one of poor quality and is interfering with your screen. Remove it if you got it. Also it can mess up your ambient light sensor/proximity sensor.
Click to expand...
Click to collapse
Nope I have nothing on the screen its as it came
Have reset device still the same I'm guessing it has a problem , sad to say but HTC aren't impressing me lately even thinking of replacing my sensation with a galaxy nexus soon :-(
Sent from my HTC Sensation Z710e using Tapatalk
I'm having the same issue too. But i do have it all the time, with every single call i make.
Lets test something here:
Grab a flashlight and turn it on
Cover the light sensor in the upper left with your finger and make sure the 3 capacitive buttons light up.
Uncover them
Now shine the flash light directly into the light sensor
Did the lights turn off? If not get your phone replaced. If they did then you or something is covering the light sensor. The light sensor can turn the screen off at around 1".
I wrote to HTC, they replied after 1-2 hours:
"this is a functional problem caused by a sensor inside the phone" ... "if you can please do get a replacement phone if you have just bought the phone"
Click to expand...
Click to collapse
I asked my local dealer, i will receive a new device tomorrow.
MJCS said:
Lets test something here:
Grab a flashlight and turn it on
Cover the light sensor in the upper left with your finger and make sure the 3 capacitive buttons light up.
Uncover them
Now shine the flash light directly into the light sensor
Did the lights turn off? If not get your phone replaced. If they did then you or something is covering the light sensor. The light sensor can turn the screen off at around 1".
Click to expand...
Click to collapse
Tried this but nothing happens while call is active , I rang someone today got their voicemail I left a message but after my message I couldn't end the call I had to connect it to my car kit and use that to end the call
Time for a new handset here as well I think :-(
Sent from my HTC Sensation Z710e using Tapatalk
What was the outcome. Did the lights turn off?
MJCS said:
What was the outcome. Did the lights turn off?
Click to expand...
Click to collapse
For me, the light turned off. In fact I do not need to shine a torchlight. If I cover the top part of the display the 3 capacitive buttons light up. If I uncover, the light disappear. Any ideas? The screen is turning off every time I make a call.
That tests the ambient light sensor(s) - most phones have 2 or 3 - but it doesn't test the proximity sensor... (because the button lights should be tied to the ambient).
Either way, I have not heard of this issue, though HTC has pushed out a firmware update over zune for the Titan recently. I'd recommend to check that, and if there is no update/doesn't fix, then replace the phone.
Sent from my MB860 using Tapatalk
jeremyshaw said:
That tests the ambient light sensor(s) - most phones have 2 or 3 - but it doesn't test the proximity sensor... (because the button lights should be tied to the ambient).
Either way, I have not heard of this issue, though HTC has pushed out a firmware update over zune for the Titan recently. I'd recommend to check that, and if there is no update/doesn't fix, then replace the phone.
Sent from my MB860 using Tapatalk
Click to expand...
Click to collapse
The light sensor IS the proximity sensor
MJCS said:
The light sensor IS the proximity sensor
Click to expand...
Click to collapse
Is my sensor working properly then? I have a screen protector installed. Is that the problem? I have not tried taking off the protector yet.
You should try that. Some cheap screen protectors can mess with it. I know this was the case with some protectors on the dell venue pro early on.
MJCS said:
The light sensor IS the proximity sensor
Click to expand...
Click to collapse
o.0!? The proximity sensor is normally a led rangefinder in the infrared frequencies. Light sensor could cause lots of false positives...
Sent from my SGH-i937 using Board Express
Fixed the problem. You must remove the clear stock screen protector...it distorts the sensor.
I've been saying that all along
I did a test. Peeled off a bit of the screen protector, enough to expose the sensor. Made a call. The screen didn't blank. So it's the screen protector.
Hi guys I have just recently bought a Radar from bay and im having the same problem, but this time there is no screen protector.
If I cant get a refund form the seller, can I get a warranty repair seeing as though im a second owner?
Cheers
Hey everyone,
I'm having issues with my screen not turning off at times and I think it has to do with Smart Stay. I'm not even looking at the screen and the screen would stay on. Last night I was playing around with my phone, I left the room, came back and my screen was still on. The other issue I have is when I'm reading a long email the screen would turn off. Is this a software issue or do I have a defective phone?
Forgot to mention, I have the Rogers version.
Wirelessgirl said:
Hey everyone,
I'm having issues with my screen not turning off at times and I think it has to do with Smart Stay. I'm not even looking at the screen and the screen would stay on. Last night I was playing around with my phone, I left the room, came back and my screen was still on. The other issue I have is when I'm reading a long email the screen would turn off. Is this a software issue or do I have a defective phone?
Forgot to mention, I have the Rogers version.
Click to expand...
Click to collapse
Your face has to be centered in the upper right hand camera. That is a little off centered. So turn your front facing camera on and center your face. That's where your face should be. It's not using your eyes but it's using facial recognition to stay on.
As for your screen not turning off... how long is your screen set out for?
Lastly, turn smart stay off and see if it does the same. That will let you know the real problem.
I have noticed this effect on my phone as well. Above my computer area, is a lamp, that is somewhat round. Every once and a while the smart stay will detect an object that it thinks is a head, however it is not. So the screen will stay on. Just move it. The smart stay does not work 100% in lower ambient light also. So if this screen off issue is occurring more often at night or in low light environments, that is fairly typical. Your phone is fine.
SlimJ87D said:
Your face has to be centered in the upper right hand camera. That is a little off centered. So turn your front facing camera on and center your face. That's where your face should be. It's not using your eyes but it's using facial recognition to stay on.
As for your screen not turning off... how long is your screen set out for?
Lastly, turn smart stay off and see if it does the same. That will let you know the real problem.
Click to expand...
Click to collapse
Ok, I turned on my front facing camera to center my face. I have to say that's an awkward way of holding the phone to make sure Smart Stay detects your eyes.
My screen is set to time out for 30 seconds.
I did turn off smart stay last night and my screen turned off. I know it's an issue with smart stay. But could it also be a front facing camera issue? It seems to take pictures okay though.
get out of the house now. You have a ghost.
I'm sooo close to caving in and replacing my GS2 for a 3, one of my very few pet peeves with the SG2 is how slow it wakes..
Seeing a lot of you guys came from GS2s I figured who best could answer my question of does the GS3 snap to life faster then your old GS2?
Also as long a you're answering what is the feature that most impressed you coming from the GS2? TIA.
Sent from my GSII w/ICS SHOstock2
Captpt said:
I'm sooo close to caving in and replacing my GS2 for a 3, one of my very few pet peeves with the SG2 is how slow it wakes..
Seeing a lot of you guys came from GS2s I figured who best could answer my question of does the GS3 snap to life faster then your old GS2?
Also as long a you're answering what is the feature that most impressed you coming from the GS2? TIA.
Sent from my GSII w/ICS SHOstock2
Click to expand...
Click to collapse
Honestly, I find it does wake quicker than my i9100 did. Hopefully more will confirm as it may be subjective, but it tends to wake in under a second when hitting power button on mine anyway where my SGS2 was like 2 or 3 seconds when waking.
For me, you can really tell the higher resolution screen which was a plus for me. The LED light is incredible useful (no more waking phone to see if I have any messages). And the third was definitely LTE which is so much faster in my area than HSPA which seems to be really congested. Those three things made it worth the upgrade alone. All in all, maybe not a HUGE upgrade but a decent enough upgrade for myself
blue265 said:
Honestly, I find it does wake quicker than my i9100 did. Hopefully more will confirm as it may be subjective, but it tends to wake in under a second when hitting power button on mine anyway where my SGS2 was like 2 or 3 seconds when waking.
For me, you can really tell the higher resolution screen which was a plus for me. The LED light is incredible useful (no more waking phone to see if I have any messages). And the third was definitely LTE which is so much faster in my area than HSPA which seems to be really congested. Those three things made it worth the upgrade alone. All in all, maybe not a HUGE upgrade but a decent enough upgrade for myself
Click to expand...
Click to collapse
Nice... I know that screen is very nice.. I haven't seen anyone posting anything about the GS3 display staying on while your eyes are still on it, has this feature been included with the AT&T GS3???
Captpt said:
Nice... I know that screen is very nice.. I haven't seen anyone posting anything about the GS3 display staying on while your eyes are still on it, has this feature been included with the AT&T GS3???
Click to expand...
Click to collapse
Yes, it actually not your eyes it's detecting, but face. Love this feature, very useful when reading something or playing puzzle games.
The way it's working, it turns front camera on a few seconds before it dims the screen, if it detect a face, nothing happens, if no face near, it dims the screen for 5 seconds, then it checks again for a face, if found it, it turns up the brightness and resets screen timeout, otherwise shuts it off.
Wakeup time has a slight lag, but it's not annoying. However if you are using something like SetCPU and set profile to turn down CPU clock to lowest possible when screen is off, then it might not response to touches after wakeup for a few seconds.
[email protected] said:
Yes, it actually not your eyes it's detecting, but face. Love this feature, very useful when reading something or playing puzzle games.
The way it's working, it turns front camera on a few seconds before it dims the screen, if it detect a face, nothing happens, if no face near, it dims the screen for 5 seconds, then it checks again for a face, if found it, it turns up the brightness and resets screen timeout, otherwise shuts it off.
Wakeup time has a slight lag, but it's not annoying. However if you are using something like SetCPU and set profile to turn down CPU clock to lowest possible when screen is off, then it might not response to touches after wakeup for a few seconds.
Click to expand...
Click to collapse
Thanks blue265 and [email protected]
Great to hear.. I just found there is a patch to let the hard home button wake the phone which is very cool...
Having a hard time justyifying replacing my GS2 after only 8 months but damn this GS3 looks sweet....
Not to mention I'm seriously thinking of putting my iPad (Gen 1) on eBay along with my GS2, the new Nexus 7 tablet for $199 looks just as inviting as the GS3
Captpt said:
I just found there is a patch to let the hard home button wake the phone which is very cool...
Click to expand...
Click to collapse
Just for the record, at least AT&T version has this feature by default, no need any patches.
Captpt said:
I just found there is a patch to let the hard home button wake the phone which is very cool...
Click to expand...
Click to collapse
This is enabled by default on the Verizon version as well, no patch needed.
Awesome, it'd be getting the AT&T version... Now I see the GS3 Red pre-orders have started and will be available on the 29th, my resistance it's getting weaker by the minute
How have the ROMs been so far for the GS3 (the AT&T versions)?
Sent from my GSII w/ICS SHOstock2
What I found out is that the timing of the two knocks is less important, what is more important is to keep the finger on the screen after the second knock. After the second knock just keep it on the screen until you see the LED lights up, and you'll see how more efficient it will become.
Im tapping on every other device since I have my LG!
Sent from my Nexus 7 using Tapatalk 4
i go knock knock knock, it almost always helps.
Noam23 said:
What I found out is that the timing of the two knocks is less important, what is more important is to keep the finger on the screen after the second knock. After the second knock just keep it on the screen until you see the LED lights up, and you'll see how more efficient it will become.
Click to expand...
Click to collapse
Excellent information; exactly what I was looking for. Thanks!
Yeah works good so far!
Gesendet von meinem LG-D802 mit Tapatalk 4
I noticed most of the time when Knock On fails for me is because the phone isn't on a solid flat surface for example while I'm holding it in my hand or while it's on my bed.
This makes me think the accelermeter is used for this feature. So if you have too much "suspension", it won't trigger.
Just my thoughts!
Edit: I just tested with incredibly light touches and it still worked so perhaps it isn't accelerometer enabled. =S
amankapoor4 said:
i go knock knock knock, it almost always helps.
Click to expand...
Click to collapse
yeah, i hear if you say "knock knock" out loud as you do it, it works EVERY time.
Sent from my LG G2 using Tapatalk Pro
Great tip
Exactly what i was looking for although still a bit slow compared with what i had with my Nexus 4 and the touch control app. But at least I just do Knock knock once.
That really does work everytime.
Nice tip. I have been playing around with suggestions that I have seen elsewhere but yours seems to be the most consistent (I've done it 25+ times now in a row with your technique). I've even tried changing the rate at which I do the knocks (fast versus slow) and have also tapped on different parts of the screen. It seems like the key is leaving your finger on the screen on the second knock.
Previously some things that I read to increase the success rate were (each with mixed results):
- Always tap on the top of the phone (where the notification bar would be)
- Always tap three times instead of two
- Tap once and then pause slightly and then tap twice
On a side note, does anyone know how this feature works exactly? Is it simply the digitizer detecting the taps on the screen or is there something else going on?
I tried tapping on the back of the phone. This didn't work so the at least use the touchscreen for the knock knock feature.
Sent from my LG-D802 using xda app-developers app
LoL
Sent from my LG-D801 using xda app-developers app
kamiel said:
I tried tapping on the back of the phone. This didn't work so the at least use the touchscreen for the knock knock feature.
Sent from my LG-D802 using xda app-developers app
Click to expand...
Click to collapse
Ya, after doing some more testing, it must be the touchscreen. The reason I thought it may have been something else is I have gotten it to work by tapping in the top right corner of the phone (presumably not on the screen) but that's probably b/c the bezel is so small. I haven't been able to get it to work along the bottom of the phone (over the LG logo).
amankapoor4 said:
i go knock knock knock, it almost always helps.
Click to expand...
Click to collapse
This! Works 99.9% of the time for me
---------- Post added at 11:51 AM ---------- Previous post was at 11:47 AM ----------
Fraxon said:
Im tapping on every other device since I have my LG!
Sent from my Nexus 7 using Tapatalk 4
Click to expand...
Click to collapse
This as well!!!
I hate it bc that's how I was when the first iPhone came out...made me want to pinch to zoom my laptop screen. Now I find myself tapping the iphone or laptop to unlock but get mad when they don't lol
Knock On feature to turn screen on doesn't work if proximity sensor is covered (try to cover it and tap the screen - it will stay off). Also phone needs a short while to detect the sensor is not covered anymore. So if you pull out your phone out of a pocket and immediately try to turn screen on it simply won't work at first try. Second usually does the job. I've never really had a problem with unlocking the phone while it's on the table or something, when the sensor isn't (or wasn't two seconds ago) covered by anything.
So the reason of our problem is slow response from proximity sensor, it's super fast to detect the sensor is covered, but a lot slower to detect it's uncovered. (You can test it during the phone call - you'll see what I mean).
The solution is just wait a second after you pull out your phone from pocket or after you holding it the way it covers or is near the proximity sensor. I don't think guys triple knocking or keeping your finger on the screen is really helpful. ?
Maybe it can be fixed somehow by our devs, make the proximity sensor reacts quicker.
xegi said:
Knock On feature to turn screen on doesn't work if proximity sensor is covered (try to cover it and tap the screen - it will stay off). Also phone needs a short while to detect the sensor is not covered anymore. So if you pull out your phone out of a pocket and immediately try to turn screen on it simply won't work at first try. Second usually does the job. I've never really had a problem with unlocking the phone while it's on the table or something, when the sensor isn't (or wasn't two seconds ago) covered by anything.
So the reason of our problem is slow response from proximity sensor, it's super fast to detect the sensor is covered, but a lot slower to detect it's uncovered. (You can test it during the phone call - you'll see what I mean).
The solution is just wait a second after you pull out your phone from pocket or after you holding it the way it covers or is near the proximity sensor. I don't think guys triple knocking or keeping your finger on the screen is really helpful. ?
Maybe it can be fixed somehow by our devs, make the proximity sensor reacts quicker.
Click to expand...
Click to collapse
Probably does that so it won't come on by "knocking" in your pocket. Not a big deal for me at all. And the OP's method is working 100% of the time fur me. No need for 3 knocks any more.
I'd like to confirm what don't others have said and say that the most common mistake is tapping too fast.
Correct that the knock on only uses the sensor to avoid turning the screen on in your pocket.
However, if the touch screen constantly listens for these knocks while it is turned off, shouldn't that consume at least a considerable amount of battery?
Sent from my LG-D802 using XDA Premium 4 mobile app
Noam23 said:
What I found out is that the timing of the two knocks is less important, what is more important is to keep the finger on the screen after the second knock. After the second knock just keep it on the screen until you see the LED lights up, and you'll see how more efficient it will become.
Click to expand...
Click to collapse
this is an excellent tip, thanks! I went from knock knock knock knock, to knock knock and hold and its worked every time for me..
Exellent tip thanks!
Works 100% of the time now! :good::victory::laugh:
This tip however, does not apply to turn off the device. Two quick taps (and release) takes care of that always!
Cheers!
noob question
Noam23 said:
What I found out is that the timing of the two knocks is less important, what is more important is to keep the finger on the screen after the second knock. After the second knock just keep it on the screen until you see the LED lights up, and you'll see how more efficient it will become.
Click to expand...
Click to collapse
sorry for this really really dumbass question but when u say "After the second knock just keep it on the screen until you see the LED lights up"
i infer 1 knock (tap and lift finger) and then 2nd one is not actually a knock (tap and lift finger) but just tap and keep ur finger there itself
or
is it 2 knocks and then (after second lift of finger) jst touch the screen again
good i really feel like dumbest dumb on this planet asking this question but please do reply
i dont yet have g2 but planning on buying it so i cant confirm myself what u meant