Screen brightness has gone down... - LG Optimus G (International)

Everything was fine. I had the brightness set to 60%, which was reasonably bright for me. Retrieved the phone from the table to place a call and realized the screen was looking dim. I thought perhaps I'd accidentally turned on Auto Brightness, but I realized it wasn't the case. I restarted the phone, but the problem still persisted. I did a factory reset; still the same. I reflashed the firmware, but saw no resolution to the issue. Incidentally, after the flash and the subsequent setup, I tried to increase the brightness, but the phone refused to permit it, with a message about some heating issue. I was able to do so several seconds later, however, and while there have been no more "heat" warnings, the phone's brightness hasn't been the same. I seem to have lost about 20%: what I had at 60%, I have the same level of brightness now at 80%. And the maximum brightness, on the same token, isn't the same as it was earlier. I'd appreciate any suggestions. If any of you have faced a similar problem and had a found a solution to it, do let me know.

weird ... Guarantee if still possible.

garanty... you are not alone with this problem, in an other forum a user had the same problem

2nd Sky said:
garanty... you are not alone with this problem, in an other forum a user had the same problem
Click to expand...
Click to collapse
That's pretty encouraging...or is it? Nevertheless, would've appreciated some solution, but it looks like I'm going to have to make that trip to the service centre.

MarcSinger said:
That's pretty encouraging...or is it? Nevertheless, would've appreciated some solution, but it looks like I'm going to have to make that trip to the service centre.
Click to expand...
Click to collapse
I saw in a review before i bought mine that if it heats up the brightness of the screen is auto. lowered in order to try to keep a resonable temperture. But nothing about your simptoms. Did you try a different kernel here on the forum or to reflash the stock kernel ?

SOLVED
MarcSinger said:
Everything was fine. I had the brightness set to 60%, which was reasonably bright for me. Retrieved the phone from the table to place a call and realized the screen was looking dim. I thought perhaps I'd accidentally turned on Auto Brightness, but I realized it wasn't the case. I restarted the phone, but the problem still persisted. I did a factory reset; still the same. I reflashed the firmware, but saw no resolution to the issue. Incidentally, after the flash and the subsequent setup, I tried to increase the brightness, but the phone refused to permit it, with a message about some heating issue. I was able to do so several seconds later, however, and while there have been no more "heat" warnings, the phone's brightness hasn't been the same. I seem to have lost about 20%: what I had at 60%, I have the same level of brightness now at 80%. And the maximum brightness, on the same token, isn't the same as it was earlier. I'd appreciate any suggestions. If any of you have faced a similar problem and had a found a solution to it, do let me know.
Click to expand...
Click to collapse
I've an LG Optimus G too.
It can happen two things:
First, the phone takes down the brightness when the temperature is too high, it happen automatically.
Two: Auto brightness is enabled. Then, the phone uses front camera to see how much ambient light are everytime, then it go up and down.
You're talking about the first case, so charge the battery 100% and then unplug it and let them alone for some minutes in order to leave the temperature going down. Then go to setings, screen, and disable smart screen snd auto brightness.
Try it for some time and send us your experience! =D

DonDregon said:
First, the phone takes down the brightness when the temperature is too high, it happen automatically.
Two: Auto brightness is enabled. Then, the phone uses front camera to see how much ambient light are everytime, then it go up and down.
Click to expand...
Click to collapse
There is ambient light sensor near proximity sensor,camera is not used for automatic brightness.
He can disable temperature warning with Optimus G Tweaker which can be found in Play Store.
He must be rooted firs,he can do that easily with framaroot app.

Thanks a lot, everybody. Unfortunately, I've sold my OG and moved on to the Nexus 4. I appreciate your responses, nonetheless. Have a good life ahead!

True
ChobbyNS said:
There is ambient light sensor near proximity sensor,camera is not used for automatic brightness.
He can disable temperature warning with Optimus G Tweaker which can be found in Play Store.
He must be rooted firs,he can do that easily with framaroot app.
Click to expand...
Click to collapse
:good: Thats right, in the opposite of the front camera you can find the proximity sensor and the brightness sensor, if you have eye-recognizement enabled in block screen options, then i think it uses the front camera for both things (brightness and eye-reco.).
Near the front camera it only has notification led.
I'm root, but i dont know if someone want to desable temperature warning... it can be... destructive! LoL

Related

Autobrightness bug

Hello little birdies.
I am having an issue with my auto-brightness and I would like to know if anyone else has experienced this.
Whenever my auto-brightness shines through the power of the sun (goes to 100%) it seems to get stuck at full brightness and my already not so good screen-on time takes a dip and I always notice this too late . I use the quick settings widget which is preinstalled and the A for auto-brightness is set but when I click it the screen immediately lowers the brightness, while the A for auto-brightness remains, and a vain in my forehead pops.
Furthermore after checking badass battery monitor it shows that my screen is often at 100% sun shadowing brightness. Today it was at full mutated power the whole time. Anyone got an idea as to what could cause this? Anyone?
PS. You might have noticed in the text above that I think the screen is really bright when at full power and that I can see the screen perfectly during a warm ball-soothing sunny day.
Yes, I have a bug with auto brightness too. It seems to deactivate itself. I have activated it a couple of times and everytime it deactivate itself at 100 % after some use.
I have an international HTC One X with the latest 1.29.401.11 update.
Glad to know I'm not the only one. I will soon factory reset my phone to check if it magically gets better.
I noticed this last night. My phone was blindingly bright and I didn't understand why it was set to 100%. I set it back to Auto and so far its still on Auto. i will have to keep an eye on this.
HTC really need to fire the monkeys they have working as coders. I guess if their software is not fixed up in next couple of weeks there might be a whole lot of people, me included, who will migrate to the SIII (given of course that it doesn't have a gazillion bugs as well).
I've been trying all day to recreate the problem but ist not doing it. I put my phone in the sun, I tried using the camera app, I used the video app with its 100% brightness setting, but the phone is still showing Auto brightness.
Any ideas on what triggers 100% brightness?
I have the same problem with mine. It's just randomly turns off auto brightness
Sent from my HTC One X using xda premium
I don't know either what triggers it. It seems to deactivate at either 0 % or 100 %.
I don't have many apps installed, if I just do some web surfing and put it to sleep, when I wake it up the auto brightness is deactivated, in maybe 1 of 4 times. Irritating.
For whatever reason i haven't been getting the auto brightness bug for the past three days. Not sure how it resolved itself since I didn't get any software updates.
If you watch a video you can change the brightness and will stick and not go back to your original settings.
Sent from my HTC One X using xda premium
treebill said:
If you watch a video you can change the brightness and will stick and not go back to your original settings.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
No, that's not the trigger. I investigated that on my phone and found no link.
I take that back. You are right! It seems the brightness setting in the movie play is the culprit. Although it doesn't always do it. One more thing for the chimps at HTC to fix.
Sent from my HTC One X using XDA
Yesterday the auto brightness bug kicked in right before my eyes. I was browsing the web in total darkness in bed, when suddenly I was blinded by 100% brightness. So it's not just the movie player brightness that causes this issue.
Sent from my HTC One X using XDA
Just got the autbrightness bug with the camera app. Everything seems to ****ing set it off now.. :banghead:
Sent from my HTC One X using XDA
Yeah. That's because the camera jacks up brightness for outdoor visibility. They need to have an option to disable that.
Sent From Mars
Hotzigetty said:
Yeah. That's because the camera jacks up brightness for outdoor visibility. They need to have an option to disable that.
Sent From Mars
Click to expand...
Click to collapse
I realize that, however it doesn't always do it. Also sometimes it will kick into 100% brightness without using the camera or movie player. It seems completely random to me.
mine is stuck at zero. started this morning and I did record a video actually.
auto just takes it.to zero.
but also, if i change it directly from the srttings menu, its not.effecting at all, just staying at the same previous custom level.
whrn using widget, just turns it to zero.
opened the video player, changed brightness level and its normal now. it was in the middle, the video brightness level
ok just edited this post and its malfunctioning again.. arrrgh!
Try an application that controls autobrightness, it should fix the problem. I would recommend Lux Dash.
So it is the widget, powertoggle.
Once I fix the issue by changing video brightness, it works fone, till I toggle the widget to use auto-brightness.
Several comments on PlayStore also confirms this with several phones.
Just don't use auto brightness from powertoggle. It is actually doffetent.from what OP describes, but.people may come up to this thread while searching, so I think it willbe useful to post here.
hxhx
i meet this problem
Auto brightness issue
I too had the same issue, i tried to resolve the problem with htc but unfortunately they said that it is a software but and we need to wait for an update....
ynischa said:
Hello little birdies.
I am having an issue with my auto-brightness and I would like to know if anyone else has experienced this.
Whenever my auto-brightness shines through the power of the sun (goes to 100%) it seems to get stuck at full brightness and my already not so good screen-on time takes a dip and I always notice this too late . I use the quick settings widget which is preinstalled and the A for auto-brightness is set but when I click it the screen immediately lowers the brightness, while the A for auto-brightness remains, and a vain in my forehead pops.
Furthermore after checking badass battery monitor it shows that my screen is often at 100% sun shadowing brightness. Today it was at full mutated power the whole time. Anyone got an idea as to what could cause this? Anyone?
PS. You might have noticed in the text above that I think the screen is really bright when at full power and that I can see the screen perfectly during a warm ball-soothing sunny day.
Click to expand...
Click to collapse

[Q] Brightness dies. please help

For some reason starting yesterday, my phone brightness automatically goes to minimal brightness everytime i lock it. The brightness slider is on MAX (and it stays on max even when the brightness dies). Auto Brightness is OFF. Power Saving is Off.
Presus Kernel
Omega V16 rom.
nothing modified in the phone in a long time. After the issue happened, i updated the kernal, and still nothing.
The only thing that happened differently over the last few days was i used my phone too much to the point the battery would die. (and in general the screen turns to minimal brightness past 5%, but somehow this got STUCK. even when the phone is charging
Noodile said:
For some reason starting yesterday, my phone brightness automatically goes to minimal brightness everytime i lock it. The brightness slider is on MAX (and it stays on max even when the brightness dies). Auto Brightness is OFF. Power Saving is Off.
Presus Kernel
Omega V16 rom.
nothing modified in the phone in a long time. After the issue happened, i updated the kernal, and still nothing.
The only thing that happened differently over the last few days was i used my phone too much to the point the battery would die. (and in general the screen turns to minimal brightness past 5%, but somehow this got STUCK. even when the phone is charging
Click to expand...
Click to collapse
See if this helps :http://forum.xda-developers.com/showthread.php?t=1970870
Still doesn't solve the issue.
Wiped the device, new rom (Wanam), New Kernel (adam's).
Still the same issue.
Here's what happens:
Full Brightness, Lock screen,..... Unlock, Minimal Brightness
OR
Full Brightness, Lock screen,..... Unlock, (.5 second of full brightness), Minimal Brightness
Just to be clear, the problem isn't that the stock brightness isn't bright enough. The problem is that the brightness setting gets turned down to zero for no reason, (while the settings and slider) are still on max
Do you have any apps that might be doing it? That's the only thing I can think of, maybe you've set up a Tasker profile up wrong and is causing it or something.
Sent from my GT-N7100 using xda premium
D3_ said:
Do you have any apps that might be doing it? That's the only thing I can think of, maybe you've set up a Tasker profile up wrong and is causing it or something.
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
well tried Wanam with Adams kernel
then
tried wana with Stock kernel . Wiping before every install.
Both didnt work.
So i wiped every thing. /Data, /SdCard, /Cachem etc. literally everything. Then installed wanam with adams kernel. And somehow that fixed the issue

How Can You Disable Screen Dimming?

Is there a way to keep the screen from dimming after a period of time? I set it to never turn the screen off while charging, but it still dims while the music app is up when it's charging in the car which is annoying. I can't find the setting anywhere in LG's settings or in tweaksbox.
I tried Lux as others have suggested but it still dims in my truck. Very annoying.
This app has helped for me: https://play.google.com/store/apps/details?id=com.synetics.stay.alive
My screen doesn't dim ... did you turn off Auto brightness?
What would cause it to dim by itself? I only run at 61% brightness so maybe I haven't experienced this yet
My auto brightness is off and it still dims. Lux auto is on or off and it still dims.
Kujila said:
My screen doesn't dim ... did you turn off Auto brightness?
What would cause it to dim by itself? I only run at 61% brightness so maybe I haven't experienced this yet
Click to expand...
Click to collapse
Yup, I always have auto brightness off. It just dims after a minute or so of no input - which happens while I'm driving. I always keep it at 100% unless I'm in the dark which may be why you haven't noticed it - the screen may dim to around 60% anyways. I find it weird that you can't adjust how long it waits to dim, or turn that feature off. I'm guessing this is part of LG trying to help with battery life.
DroidApprentice said:
This app has helped for me: https://play.google.com/store/apps/details?id=com.synetics.stay.alive
Click to expand...
Click to collapse
Thanks, I'll check that out when I get a chance.
Hmm weird. I wonder if this is the overheating issue I read about
Kujila said:
Hmm weird. I wonder if this is the overheating issue I read about
Click to expand...
Click to collapse
I've only ran into that a couple times and the screen dimmed to 90-95% and I had to manually turn it back up. This is different where it goes bright again as soon as I touch the screen and the dimming is much darker than 90% - more around the 50% ballpark.
Wow, yeah that sounds extreme...
I know it's a pain, but have you considered doing a hard reset to see if it is indeed setting/software related?
If the OP was referring to the "Screen brightness lowered due to high temperature" message.
Go into the hidden menu by typing 3845#*855# (replace 855 with your devices model number, mine is a D855).
Then scroll down to Thermal Daemon Mitigation OFF and make sure it is enabled (on).
Reboot the device and you can now force maximum brightness all the time.
Kujila said:
Wow, yeah that sounds extreme...
I know it's a pain, but have you considered doing a hard reset to see if it is indeed setting/software related?
Click to expand...
Click to collapse
I actually had to get a second phone a week ago because I cracked my screen (a few hours before my protector came in the mail). At least it was early enough that I got a brand new phone through insurance instead of refurbished, but both phones do it. Could be a Sprint vs Verizon difference - Verizon likes to go crazy with phone mods lol. Though I don't normally run into it with normal usage - only when the screen is set to stay on while charging through the developer option and I'm driving with music.
Mine does that. Sprint phone, happens after a minute of no input, including when the screen is set to stay always on. However, I notice this doesn't happen when running Maps.
I've already gone through two phones, same on both.
WillJeepForFood said:
Mine does that. Sprint phone, happens after a minute of no input, including when the screen is set to stay always on. However, I notice this doesn't happen when running Maps.
I've already gone through two phones, same on both.
Click to expand...
Click to collapse
There are certain apps - and Maps is definitely one - which will not allow the screen to dim or the device to sleep. (YouTube is another for example, also iHeartRadio, etc.) Really the best thing to do is mod using something like Tasker or Stay Alive! as I mentioned in an earlier post for specific apps. I use mine for the Music app since typically I've got mine on the car charger and dash mount and it makes no sense to go through a whole screen unlocking routine to fully operate music after a while.

Auto Screen Brightness Erratic

Anyone else having this issue? Sometimes in well lit indoor environments, it will be dimmer than I expect and then suddenly ramp up to full brightness.
Likewise in dark environments it will be dim and ramp up suddenly as well.
Yeah, I have that aswell, sometimes it's not perfect at all, I hope there will be some optimizations.
crysen said:
Yeah, I have that aswell, sometimes it's not perfect at all, I hope there will be some optimizations.
Click to expand...
Click to collapse
Glad I am not alone. Hope they'll be good with software updates since currently they are known for not being good in that department.
I was really happy to see that option in settings. However I was irritated by how erratic it was. Disabled it.
Even ambient display doesn't work correctly for me everytime. It's kinda random too
To be honest, I think it's partly a Marshmallow issue, as none of my MM phones have had decent auto brightness
Sent from my P9000 using Tapatalk
mrbubba999 said:
To be honest, I think it's partly a Marshmallow issue, as none of my MM phones have had decent auto brightness
Sent from my P9000 using Tapatalk
Click to expand...
Click to collapse
I wish I could agree. My Nexus 6 had great auto brightness on L and M. Never had this type of behavior until the OP3.
Might be because OnePlus has implemented their own content adaptive back light like on the OPO. I turned it off by setting a 0 in the file /sys/devices/virtual/graphics/fb0/cabc
Not sure if that file is there on the OP3 but it's worth a shot
abhi08638 said:
Might be because OnePlus has implemented their own content adaptive back light like on the OPO. I turned it off by setting a 0 in the file /sys/devices/virtual/graphics/fb0/cabc
Not sure if that file is there on the OP3 but it's worth a shot
Click to expand...
Click to collapse
I turned it off in the settings and it was fine. I just wish I could have normally functioning auto brightness lol.
I just got my OP3 and have an issue with adaptive brightness, not sure if this is a behaviour that others have seen or if I have a defective device, perhaps someone could advise? My phone is running 3.2.1 and is fully stock, I have adaptive brightness enabled as I always have on whatever phone I use, when I activate the screen or it turns on at the receipt of a notification the brightness is at the approximate level it should be according to the position of the brightness slider and is perfectly usable. After a few minutes, this varies a bit but never more than five minutes, the screen dims to what I think is the lowest brightness level which during the day makes it difficult to see anything on screen. I can get back the previous brightness setting by turning the screen off and then immediately back on but then after a further few minutes it will dim again. The phone is not responding to any change in the ambient lighting as this is always constant and there is no obstruction to the sensor on the front of the phone. I can get a constant brightness level by turning this setting off but it can be a pain having to manually adjust when I go outdoors for example and this isn't the way I like to use my phone. So, is this a hardware fault or just a very poor implementation of adaptive brightness? I'd appreciate any feedback as this is spoiling what is otherwise a great phone.
Thanks
What should we do for this scenario. Should we raise a complaint or wait for an update. I have my phone in warranty. I am sure all of us would have it in warranty.
I've had issues with that feature since day one with my op3. No update has fixed the adaptive brightness issue, and it's the same with all of the custom ROMs I've tried. Has to be an issue with the phone. I'm hoping a software update fixes it because it's an obvious issue. In dark light, my screen dims so much that I can't really read anything on my screen.
Auto brightness is just bad on the OP3.. I've installed Lux to ease some of the problems but I'd like the standard AB to work correctly and not need an additional app..
Can´t dim the brightness at all CM13
Hi,
I have an issue were I can´t dim the brightness at all!
Killing my eyes!
Any solution?
With last 3.5.2 is been solved

Light sensor issue?

I was thoroughly unimpressed with the auto brightness on my unit so I kept it off. Every time I tried to use it, it would immediately drop to like 10% brightness in all but the brightest conditions. I consider the stock auto brightness unusable.
After getting tired of manually adjusting it all day I installed lux auto brightness on my phone and started fiddling with it.
It's better now but this isn't a permanent solution as the developer abandoned his app over a year ago. It's causing a few issues allready and apparently it's completely incompatible with Oreo.
While playing with the settings, I noticed that the lux readings were much lower than I expected. I was getting 20 lux in a brightly lit room, 50-75 lux facing the window, etc. Occasionally I would see it jump up to 20,000 lux in direct sunlight but then it would just dip back down to sub 200.
I obviously have some issues with my light sensor and am going to contact OnePlus to RMA my unit. I'm just curious how many more people are affected by this or if it's a fluke.
I also keep auto brightness off. Agree it's unusable, makes the screen very dark.
I thought it was just me. Auto brightness seems to favour the more dim side, it can get very annoying.
I hope when LOS/AOSP ROMs start showing up, they'll be able to fix this as it does seem like more of a software thing
I actually had the opposite issue where it would get way too bright in a dark room randomly. They really do need to tweak the software around this.
I just wish there was a good alternative to lux. I used to install it on all my phones and all my friends phones.
Nothing else available comes anywhere close to being as good as lux.
Using Lux and no issues as of yet tbh...
I use Velis auto brightness. Works well on 5T
Uninstalled lux as it broke face unlock and the camera. Both simply stopped working.
Trying velis now.

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