[Q] Screen brightness very high without auto brightness - Xperia Play Q&A, Help & Troubleshooting

Does anyone know why when I turn off auto brightness, my screen gets so much brighter? Even if I have brightness set as low as it can go, it still seems alot brighter than it should be. Which must kill the battery.
Sent from my R800a using XDA App

If you'd like to compare battery life between the two theres apps for it
But as its been said, better for the battery to have the light a little brighter than constantly be changing.

If you're rooted, Rootdim (search the Market, I can't post links yet) allows you to power down the backlight below the lowest option in Display Settings. It's nice for using the phone in the dark or with a bedside lamp and should minimise battery use if you've got auto-brightness turned off as well.
The only worry is the reviewer on the Market who said its lock option kept the backlight on (at a dim setting) after shutting the screen off on his Droid Bionic but I can't say I've noticed that on my Play.

Thanks, that Rootdim is what I needed.
I tried setting it to MAX, who in the hell needs it that high?! I didn't even know it could go that high, make it a white screen and you've got a flashlight!

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Auto brightness is a major problem with this phone

Been playing with my new phone and love it but man is the auto brightness a piece of crap. It sets the backlight so low you get weird banding on solid colors and off whites. Just turn brightness to 30% or so and boom its a whole different screen, colors pop and I don't notice any banding. Whites are great too.
They need to fix this fast since it comes with auto brightness on and its going to give people a bad impression.
Sent from my Galaxy Nexus using xda premium
That's the first thing I did.
auto-brightness is always a little too aggressive for my liking..
It was a problem with the Nexus S as well. Drove me nuts.
Seems AOSP roms are very aggressive with dimming.
mobilehavoc said:
Been playing with my new phone and love it but man is the auto brightness a piece of crap. It sets the backlight so low you get weird banding on solid colors and off whites. Just turn brightness to 30% or so and boom its a whole different screen, colors pop and I don't notice any banding. Whites are great too.
They need to fix this fast since it comes with auto brightness on and its going to give people a bad impression.
Sent from my Galaxy Nexus using xda premium
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known issue. Manufacturers tend to be really aggressive with this so you can get better battery life (yea I know.. pointless right?)
Just wait for custom ROMs. Or go download paulobrien's tweak for the automatic brightness settings. (of course, as others have said, you can just turn it off)
auto brightness has always sucked on Android, iOS has a customizable auto brightness that adjust to the level you put it on initially, where as on Android there's no option to adjust the default brightness when auto brightness is enabled.
rashad1 said:
auto brightness has always sucked on Android, iOS has a customizable auto brightness that adjust to the level you put it on initially, where as on Android there's no option to adjust the default brightness when auto brightness is enabled.
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Not just iOS, even my 3 year old Nokia allows you to adjust the level of auto brightness. Wish this is native to Android. I found my Nexus One too dim on auto brightness too.
Edit (deleted): redundant post about paulobriens fix
The auto-brightness doesn't just seem too low to me but also buggy. Most of the time it's really dim, but occasionally it will suddenly shoot up to a decent level
Has anyone tried this app? https://market.android.com/details?id=com.nnevod.loggraph&feature=search_result
I find it too bright.. the display is perfectly usable on minimum brightness in a normally lit room bit it keeps winding the brightness up, draining the battery. It seems stuck on about 50%.
My Nexus S did the same thing.. Drove me nuts. I had to switch it off and force it to minimum half the time.
Hopefully the ability to tweak the levels in detail will be ported over from CM7 later. For now, you can use PaulOBrien's kernel where he adjusted it.
TonyHoyle said:
I find it too bright.. the display is perfectly usable on minimum brightness in a normally lit room bit it keeps winding the brightness up, draining the battery. It seems stuck on about 50%.
My Nexus S did the same thing.. Drove me nuts. I had to switch it off and force it to minimum half the time.
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Same here, with my Nexus S, too bright.
This is one of the first things I do when flashing a rom on my incredible. They usually have to ramp down the brightness very quickly, probably for battery life. Cm has the tool hopefully it will be loaded soon.
Sent from my ADR6300 using XDA App
It would be nice if google added an option to set the max and min brightness used during auto. You could just raise floor a little.
Sent from my Nexus S using Tapatalk
Problem I've realized is on SAMOLED devices the screen is an absolute battery killer so there's no wonder they are aggressively keeping it dim. I bet if you ran this phone at 100% brightness just sitting idle it'd last like 10 mins

Auto Brightness is Retarded

Why in the pitch black doesn't auto brightness dim the screen to the minimum?
Also, why cant we use the phone in the "dimmest" state which is what it lowers to before it enters sleep. This is even dimmer than the lowest manual setting.
You just made me laugh my ass off...............
That's why I don't use auto, just place the widgets close.
Sent from my HTC One X using XDA
I find even on the dimmest setting the HOX is very view-able even on sunny days. So I leave it on that, battery is pretty good...
Havent even thought of using auto adjust.
I have a custom ROM, so it might not work on stock, but its worth a try.
While the display is on "Auto Brightness" & just before the display goes off, it will dim to the minimum, at this point & before the display turns off, if you use the display, the brightness will remain dimmed (without turning off the diplay) until you actualy turn off the display (manualy of just leave timeout). Then, when you turn display back on, Auto Brightness is back to normal.
I use Widgetsoid to make a switch to change between 20% and auto brightness. You can customise the levels as you like. Works like a charm!
Sent from my HTC One X using Tapatalk 2
I solved brighness issue with app named Lux Dash, working perfect

Auto brightness show and inconsistent - really bright at night

I set my watch to use auto brightness. In a dark location, like movie theater or dark room, the auto brightness is not working properly:
- when I receive notification, the watch screen turned on at the full brightness. After about 2 seconds, then it either turn off the screen or the brightness reduced.
- when I wake up the watch manually, same thing happen.
Anyone experiencing this?
I usually see the opposite, where in a dark room, it comes on so dim that I can 't even see it, then brightens after a couple seconds. However, your general point is right on... the auto-brightness definitely needs some improvement.
Hmmm...That's interesting.
Really tick me off when I just woke up and the bright screen blast my eye. I am using the watch with sleep android app, but I think I'll forgo that.
Auto brightness in dark situation for me is terrible. It is even dime than level 1 brightness. I can only see time, but can not read notification clearly. I change to level 1 setting, it is great. And save lots of battery as well.
Moto 360 Brightness
Try the application "smart brightness for moto 360" from the Google play. With this application you can set a minimum brightness and better view in low light environments.
With the minimum set to 20% and auto brightness on you will get better battery life and better experience in dark situation.

Does everyone's screen auto dim?

I have auto dimness unchecked, and whenever the brightness is set to over 55%, after unlocking the phone it always auto dims byitself.
Is this normal? no other phone does this. Can this be bypassed somehow? It's jarring when you unlock and see a bright vibrant screen and all of a sudden it dims like 10% or so after 5 seconds.
Phone auto dims when it starts to heat up regardless of your settings.
Otherwise it shouldn't as long as it's not set to auto brightness.
nadram said:
Phone auto dims when it starts to heat up regardless of your settings.
Otherwise it shouldn't as long as it's not set to auto brightness.
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Ok, but when the phone hasn't been used in 30 minutes, and not "hot" at all, this still happens. This also happened with the G3 as well.
Is there a way to turn this off? This post has over 100 views, can everyone please comment if their screen does the same thing? Are there any solutions?
What carrier/model do you have?
I just tried this on mine, Verizon, 611A software.
With Auto Brightness disabled, set to 40%, I powered off, turned it on, then unlocked. The brightness did not change. Then set it to 100% brightness (Auto still disabled), and did the same thing. Again, the brightness did not change.
I have, however, seen the screen brightness reduced when I'm using Auto Brightness. If I turned it off in a bright area, then unlock it in a dim area, the screen will be bright for a moment, then will turn itself down, presumably based on evaluating the current ambient brightness.
RedOCtobyr said:
What carrier/model do you have?
I just tried this on mine, Verizon, 611A software.
With Auto Brightness disabled, set to 40%, I powered off, turned it on, then unlocked. The brightness did not change. Then set it to 100% brightness (Auto still disabled), and did the same thing. Again, the brightness did not change.
I have, however, seen the screen brightness reduced when I'm using Auto Brightness. If I turned it off in a bright area, then unlock it in a dim area, the screen will be bright for a moment, then will turn itself down, presumably based on evaluating the current ambient brightness.
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auto brightness is always off. It's the AT&T non rooted stock version. I just tuned brightness to 70%, powered off, powered on, and after unlocking and opening chrome it auto dimmed within 5 seconds.
Does it do it if you don't open Chrome?
I've seen apps make their own brightness adjustments (like a camera app that maxes out the screen brightness when it starts up). I want to say that Chrome (on my last phone) is one of them. Alternately, turn it on, unlock, wait 15 seconds, THEN start Chrome. If it still happens right after Chrome loads, then it's a Chrome phenomenon, not a just-turned-on phenomenon., and at least you can isolate what to chase down.
RedOCtobyr said:
Does it do it if you don't open Chrome?
I've seen apps make their own brightness adjustments (like a camera app that maxes out the screen brightness when it starts up). I want to say that Chrome (on my last phone) is one of them. Alternately, turn it on, unlock, wait 15 seconds, THEN start Chrome. If it still happens right after Chrome loads, then it's a Chrome phenomenon, not a just-turned-on phenomenon., and at least you can isolate what to chase down.
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Yes it dims even if I don't use chrome. No matter whats on the screen it dims a little after 5 seconds.
TheNamelessMan said:
I have auto dimness unchecked, and whenever the brightness is set to over 55%, after unlocking the phone it always auto dims byitself.
Is this normal? no other phone does this. Can this be bypassed somehow? It's jarring when you unlock and see a bright vibrant screen and all of a sudden it dims like 10% or so after 5 seconds.
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Download LUX (couple of bucks) set it to manual, 100% brightness on all LUX setting areas and it will bypass LG's lame attempt to hide the fact that they can't make a phone that doesn't suffer severe battery drain and overheating.
Your problem is called High Tempurate Thermal Mitigation (throttling). I depise it but with LUX, I tell the phone what is acceptable to me, not the other way around.
If I wanted to be dictated to like a submissive I'd just get an iphone.
I don't doubt that excess temps can cause the phone to adjust its behavior. But that quickly after turning the screen on? That seems really fast for something to go over-temperature, and for a sensor to also detect it that quickly. You may be 100% right, it's just not something I'd expect to happen that quickly.
This is a serious suggestion, despite how it may sound What if you put the phone in the fridge for 15 minutes or so, then do the same test? Does the screen still dim after 5 seconds? Depending on the humidity level, the phone could start to condense after coming out of a cold environment, so use your best judgement.
For a "safer" test, hold it in front of an air conditioner for a few minutes, with the screen off. Then, still at the A/C, turn the screen on, and see if it immediately dims.
If it suddenly runs for a while before dimming, then I'd agree it's likely temperature-related. If it still behaves the same way, then perhaps it's a different cause.
Either way, Lux sounds like a nice addition to these phones, from everything I've read. I've just been too cheap to try it yet But the rather coarse auto-brightness from LG has me curious.
TheNamelessMan said:
Ok, but when the phone hasn't been used in 30 minutes, and not "hot" at all, this still happens. This also happened with the G3 as well.
Is there a way to turn this off? This post has over 100 views, can everyone please comment if their screen does the same thing? Are there any solutions?
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Have you tried the cool-down suggestions (fridge, A/C,) ?
Try installing ThermoCF to monitor the battery temperature. I find that when used for GPS (mounted on windshield) the screen will dim with direct sunlight. The temperature is in excess of 120 °F when this happens.
I just left the G4 screen on 50% brightness for about 5 minutes and the temperature remained 98 °F (this is on a wireless charger, next to a warm laptop fan exhaust). I switched to 100% brightness and the battery temperature increased to 100 °F over the next five minutes but no dimming has occurred. After a few more minutes the temperature dropped to 99 °F with the screen remaining at 100% brightness.
Different from your problem but: I turned on the developer options and set the screen to "always-on when charging" and have noticed that the screen dims after some amount of time (I haven't timed, maybe 15 minutes or so). I ended up here because I was looking for a way to change that time and may download the LUX app to do it.
Nice to know I am not the only one having this problem. I use my phone to play Ingress and sucks the battery dry faster than anything. The screen kept going dim as I was charging.
I also have this same issue on my G5. I've tried the Lux, free version, and it still dimmed on its own. I wonder if the paid version will help out my situation?
Sent from my LG-H830 using XDA-Developers mobile app
I like the auto-dim, and my phone seems to accept manual "guidance" as to how I prefer the auto-dim to work.
What I mean is that I can manually bump up the brightness slider (while auto-dim is checked/enabled), and the phone will auto-dim using the brighter setting. Or, I can bump the brightness slider down, and auto-dim will remember that and adjust the brightness.
So it's like you can control the baseline setting for auto-dim by using the brightness slider with auto-dim enabled, and then the phone will auto adjust from that baseline. I play ingress and during the day I bump up the slider, but during the night play I'll decrease the slider and still enjoy auto dim both ways, and preserve the most battery that way.
Aint looked to see if g4 has got it. I know g3 you go into hidden menu. And turn the thermal mitigations on and it stopped the throttle down. Lg has an insanley low throttle down temp.
TheMadScientist420 said:
Aint looked to see if g4 has got it. I know g3 you go into hidden menu. And turn the thermal mitigations on and it stopped the throttle down. Lg has an insanley low throttle down temp.
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Under what setting is it on the G3 so I can check the G5?
Sent from my LG-H830 using XDA-Developers mobile app
dmarco said:
Under what setting is it on the G3 so I can check the G5?
Sent from my LG-H830 using XDA-Developers mobile app
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On the g3 and g4 its under main hiden menu. I use shortcutmaster to get to them all. But the g4 the options not there. Im not sure i dont know anything about the g5. Im not interested in it at all. I am selling my g4. So i can get another g3.
Now i know theres an app 3ctoolbox. And in cpu settings you can modify the unclock temps i dont know if it does the screen.
So, the hidden menu in Marshmallow, here it is folks. Where would I be able to find the option to turn off screen dim do to thermal mitigation? Anyone have any ideas?
Sent from my LG-H830 using XDA-Developers mobile app
Mine also started to auto dim with auto brightness off. I have the H812 from Bell . I'm sure that on mine it's the proximity light sensor that is faulty or in the software. Because when i turn on the phone while blocking completely the proximity sensor it doesn't dim anymore. (knock knock doesn't work while sensor is blocked) but problem comes back if i wake up the phone without blocking the sensor. I have tried it many times and it's the same thing over and over.
Calibration in the hidden menu doesn't fix it, Lux and many other brightness apps iv'e tried don't fix the problem lol
I also use lux with cf.lumen
Lux will manage the auto brightness as per your preferences because i found the stock LG screen was about 15% lower than id like in all environments.
Cf.lumen actually changes the colour of the display rather than applying a dumb screen filter on top for night viewing.
The only thing Lux does for me is dim the screen twice since the phone already dims by itself 3-4 seconds after the screen is turned on. I can guaranty it's not an overheating problem, even after 30 minutes in the fridge it does it. I'm tempted to have the proximity sensor changed but will most likely wait for LG to release 6.0.1 to see if it will fix it.
Nougat 7.0 is days away and still no 6.0.1 MM for the G4. Pardon my language but LG really sucks . This is my first and last LG phone

Adaptive brightness too dramatic?

I've seen a couple posts about delays with adaptive brightness, but this is a different item. I'm seeing that the adaptive brightness alters the brightness a little too dramatically. In a somewhat dark room (not pitch black) the brightness will be at absolute minimum even when the brightness is about 1/3 up on the slider. In a moderately bright room that same brightness setting will be near maximum.
Does anyone else notice this as an issue? I'm just wondering if it's normal (ie, software calibration issue) or if the brightness sensor might not be seated correctly.
It's normal. Or at least it sounds like it is working the same way mine is. And yes, IMO it is a little too sensitive. The Lux app works beautifully if you want an alternative. Also, the goog is known for tweaking this feature over time with updates.
I've noticed this too. The biggest thing for me is walking down the street at dusk (so not dark out yet) I can't read the screen as it turns it all the way down, then, when I walk under a street light, it turns it all the way up to full! It's one extreme or the other, there seems to be no middle ground.
In other words "adaptive brightness has mind of its own!"
This is why I have always kept this setting off. The brightness just changing on its own always annoyed me.
When it works properly (and it should) for ones uses, it's great, it's automatic, what's not to like? It's a pita to always have to change brightness manually just to see a phone display depending on ambient lighting which varies immensely for many users.
jbdan said:
When it works properly (and it should) for ones uses, it's great, it's automatic, what's not to like? It's a pita to always have to change brightness manually just to see a phone display depending on ambient lighting which varies immensely for many users.
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I agree. I have it set to maybe around 15-20% (centered over the WiFi symbol below it) and I never need to touch it. Gets dark enough for night driving and bright enough to read outside. Never found it stuck on one or the other when it shouldn't be.
Sent from my Nexus 5X using Tapatalk
If you buy the app Lux you can customize how it adapts your brightness. The free version is good to but you have to use mostly default settings. By default it only adapts brightness when the screen turns on.

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