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[Q] Auto-brightness too dim?!

I noticed after playing a bit with my TF that the auto-brightness is a bit too dim than what I'd like. Definitely not nearly as bright as my EVO, iPad, or Nook Color. I ended up setting it fixed at half brightness. Anyone else agree/disagree?

I agree, it's a bit on the dark side but its not too bad.

Autobrightness is calibrated poorly on pretty much every device unfortunately, I'd guess the Transformer isn't all that different.
http://www.displaymate.com/AutoBrightness_Controls_2.htm

I think the TF's screen is just dimmer as a whole (this is compared to my iPad 2). I don't mind it when doing things like surfing and email, etc. It only bothers me when I'm watching a movie because I have it set to about 90% brightness, which is pretty much even with my iPad 2 set at 60%, and the light bleeding is more apparent on the TF when set to that (this also makes the little home task bar buttons on the stock movie player more apparent as well. Why can't there be a movie player that just shows the movie and nothing else?)
I guess it makes sense though since the TF screen is bigger than the iPad 2's. Like in TV's; the smaller the screen, the brighter and better contrast they'll be.

I saw this also. I have auto brightness turned off and have it 1 click before max brightness.
I wonder if it could be dirt or grime covering the sensor next to the camera?

akarol said:
I noticed after playing a bit with my TF that the auto-brightness is a bit too dim than what I'd like. Definitely not nearly as bright as my EVO, iPad, or Nook Color. I ended up setting it fixed at half brightness. Anyone else agree/disagree?
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Click to collapse
I agree. I don't know why they don't let user pick the initial brigtness and based on that, adjust the lighting. It seems like an easy thing to do.

nxp3 said:
I agree. I don't know why they don't let user pick the initial brigtness and based on that, adjust the lighting. It seems like an easy thing to do.
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I thought it never went below the value you set it at just prior to turning on AUTO.
IE- If you have it set at 50% and turning on auto it'll never go below the 50% mark.
I haven't messed about with auto since my first firmware so maybe they changed this in later ones.

jimbob1971 said:
I thought it never went below the value you set it at just prior to turning on AUTO.
IE- If you have it set at 50% and turning on auto it'll never go below the 50% mark.
I haven't messed about with auto since my first firmware so maybe they changed this in later ones.
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Click to collapse
I'm pretty sure it's reverse, as in you set the bar to the highest setting you want and it adjusts to the room settings without exceeding the highest point you set. That's how it works in my iPad 2 at least.
Edit: This is, indeed, how it works on the TF

songmeesay said:
I'm pretty sure it's reverse, as in you set the bar to the highest setting you want and it adjusts to the room settings without exceeding the highest point you set. That's how it works in my iPad 2 at least.
Edit: This is, indeed, how it works on the TF
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Click to collapse
Not true. I just set mine to the lowest setting, then turned on the auto. It still brightens when there is light present.

If you start testing with auto brightness, one thing that you need to be aware of that makes it hard to test is that the TF checks to see if it should increase brightness frequently, but it only checks to reduces brightness after the screen goes to sleep or a power off. So once it is bright it seems to stay that way.

dmeehl said:
Not true. I just set mine to the lowest setting, then turned on the auto. It still brightens when there is light present.
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I stand corrected. Looks like Auto, truly is, auto no matter where you set your point in the bar. I just set it on the highest and then hit auto and went into a darker part of the room and it did dim the screen down, and I did the reverse like you did and it adjusted brighter in a higher lit part of the room.

brachiopod said:
If you start testing with auto brightness, one thing that you need to be aware of that makes it hard to test is that the TF checks to see if it should increase brightness frequently, but it only checks to reduces brightness after the screen goes to sleep or a power off. So once it is bright it seems to stay that way.
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Click to collapse
I don't know if that is true, because if that was the case, it should be brighter most times. and less likely to dim, but I'm having the opposite effect.

So what's the final verdict. Will AB limit itself to whatever manual brightness you had set as the max or min?

akarol said:
So what's the final verdict. Will AB limit itself to whatever manual brightness you had set as the max or min?
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From the testing I did, AB bypasses any setting you put on the bar and just adjusts to room light conditions.

I just bought a B60 serial TF and it has the dim auto brightness issue too.

I have also experienced this dimmer than what I want the brightness to be when I set to auto issue. So I revert back to the default brightness setting that came with Android 3.1. Much better on my eyes.

[Q] Brightness changes (even though auto-brightness is off)

Hi all
I am having a strange issue with my Nexus 5, so I was wondering if anyone else has experienced this:
Auto-brightness is off, brightness is set to maximum. Every now and then, as I am using the phone, the brightness would change. It would go slightly darker, and then sometimes after some time (minutes) slightly brighter again (back to maximum). When this happens, the actual brightness settings slider does not change, it's always saying 100%. I've tried to notice some pattern in the occurrences of this issue, but so far cannot identify any steps to reproduce it. It is easily spotted when the screen has a big area of a solid colour, e.g. on a web-page's white space. So most often I see it while scrolling a news website. Note that during these brightness changes, my environment's lightning does not change (auto-brightness is off anyway, so this should not matter).
I don't even know if this could be down to a software or hardware issue.
So, anyone had similar problems?
Thanks,
Nik

It's throttling (overheating)

Found a related thread
Thanks supersain08 for your answer. Now using this term, I found this thread:
http://forum.xda-developers.com/showthread.php?t=2516915

sovata said:
Thanks supersain08 for your answer. Now using this term, I found this thread:
http://forum.xda-developers.com/showthread.php?t=2516915
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How can you use the brightness at maximum on this phone? This phone has one of the brightest displays I've ever seen. At 30% or so it's brighter than most phones on full.

Synyster06Gates said:
How can you use the brightness at maximum on this phone? This phone has one of the brightest displays I've ever seen. At 30% or so it's brighter than most phones on full.
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Well I think that's beside the point, but let's say it's a personal preference.
And also it is possible that one would like to have a 100% brightness in light/sunny conditions, so then this issue could become relevant for anyone.

Last time I used 100% brightness on a phone screen was on the first days of my gnex.
Displays are in indoor situation much too bright on 100%, brigther doesn't look better all the time. I am going with Auto-Brightness (to have it at 100% in outdoor situations) but it is still to bright in low light situations. I have to wait for a customrom to adjust this like I did with the gnex.
Can not understand how people can use it at 100% all the time.

Why do you feel it's necessary to argue whether 100% brightness is useful or not?
That's not the point of the original question.

supersain08 said:
It's throttling (overheating)
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Click to collapse
I've been having the same issue; glad to know it isn't a defect, and that it's supposed to do that. Thanks for the information

Do any custom ROMs/Kernels allow you to have full control over screen brightness?

Regardless of ambient light, is there a way to set full brightness on the S6?
Running the stock ROM/kernel, even on full britghtness, the screen can go brighter unless the light sensor detects a high ambient light. I am wondering if its possible to change this.
Currently means PWM is still active on the screen even on full brightness. Same with the note 4 but this was not the case with previous samsung devices. PWM on full brightness is a deal breaker for me so I need to know now or this phone is being sold.

I think it's not really advisable to keep the screen on "extended brightness" mode for longer periods of time, because AMOLED panels wear out over time and this would be a definite way to make it wear out faster. Also it generates a lot of heat. There's a reason why Samsung implemented this adaptive mechanism.

mindfever91 said:
I think it's not really advisable to keep the screen on "extended brightness" mode for longer periods of time, because AMOLED panels wear out over time and this would be a definite way to make it wear out faster. Also it generates a lot of heat. There's a reason why Samsung implemented this adaptive mechanism.
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Thankyou for replying but you did not answer the question at all. I specifically stated this is a deal breaker for me, and that it means that I have to sell this $1000 phone for great effort at a reduced price because of it.
If something is this important to me then I clearly do not care about wearing it out over time. My galaxy s1+s2 has been running on modified AMOLED gamma values for 6 years and they are still fine so I dont care if the displays wears out in 10 years time.
I cannot use the phone becuase the PWM effect means the screen flickers like crazy. It gives me a headache after 1 minute of use. The phone is worthless to me in this state. If i can increase the brightness to full hopefuly the PWM effect stops and I can use a screen filter to lower the brightness, so it will not wear our the display as well.
Lastly why was this moved to Help and Troubleshooting, it is a very important question about the phone. All previous SGS phones have been fine, this is a game changer for the worst.

Yuge said:
Thankyou for replying but you did not answer the question at all. I specifically stated this is a deal breaker for me, and that it means that I have to sell this $1000 phone for great effort at a reduced price because of it.
If something is this important to me then I clearly do not care about wearing it out over time. My galaxy s1+s2 has been running on modified AMOLED gamma values for 6 years and they are still fine so I dont care if the displays wears out in 10 years time.
I cannot use the phone becuase the PWM effect means the screen flickers like crazy. It gives me a headache after 1 minute of use. The phone is worthless to me in this state. If i can increase the brightness to full hopefuly the PWM effect stops and I can use a screen filter to lower the brightness, so it will not wear our the display as well.
Lastly why was this moved to Help and Troubleshooting, it is a very important question about the phone. All previous SGS phones have been fine, this is a game changer for the worst.
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Click to collapse
Not really sure where the issue is at, are you stating that when the brightness is reduced you can visibly see the phone flicker? I use an app called Velis Auto Brightness, it gives you way more customization to the brightness level. I like it because it mathematically calculates based off the luminescence (in the environment) of how bright the display should be to show accurate color perception, rather than focusing on batter life as much.
The extra brightness mode on the phone is just a high contrast feature, I haven't found a way to force it on as of yet. I know the phone goes up to 700 nits in sunlight, but the biggest difference is the contrast feature on it.

Brittany_Menton said:
Not really sure where the issue is at, are you stating that when the brightness is reduced you can visibly see the phone flicker? I use an app called Velis Auto Brightness, it gives you way more customization to the brightness level. I like it because it mathematically calculates based off the luminescence (in the environment) of how bright the display should be to show accurate color perception, rather than focusing on batter life as much.
The extra brightness mode on the phone is just a high contrast feature, I haven't found a way to force it on as of yet. I know the phone goes up to 700 nits in sunlight, but the biggest difference is the contrast feature on it.
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Click to collapse
I can see the phone flicker even when the brightness is on max setting, because it is not truly the the max brightness of the screen hardware. All the galaxy phones after the s2 did this, except when you turned them to max they stopped flickering. The s6 is the first device that does not allow you manual control over brightness, so I just want to know if custom roms have done this.
IF you don't know what I mean this is how they flicker.
https://www.youtube.com/watch?v=D2f0TZtpRA4
Also you are wrong that the extra brightness is just contrast, it increase the lumens as well as reduces or stops the flicker PWM effect. This is how phones using PWM reduce brightness, by making the screen flicker on and off, whereas in phones like the S2 the actual display dimmed. Some people can see this and are sensitive to it, some people are sensitive to to it but they don't know it, and some people dont see it and aren't affected by it.
But it doesn't look like anyone has made a Kernel that allows for full control over the AMOLED in the S6 so I plan on selling the phone soon.
Lastly I hope someone moves this to a more appropriate section where a DEV can see it, not the basic QA section like how do i change wallpaper.

Yuge said:
I can see the phone flicker even when the brightness is on max setting, because it is not truly the the max brightness of the screen hardware. All the galaxy phones after the s2 did this, except when you turned them to max they stopped flickering. The s6 is the first device that does not allow you manual control over brightness, so I just want to know if custom roms have done this.
IF you don't know what I mean this is how they flicker.
https://www.youtube.com/watch?v=D2f0TZtpRA4
Also you are wrong that the extra brightness is just contrast, it increase the lumens as well as reduces or stops the flicker PWM effect. This is how phones using PWM reduce brightness, by making the screen flicker on and off, whereas in phones like the S2 the actual display dimmed. Some people can see this and are sensitive to it, some people are sensitive to to it but they don't know it, and some people dont see it and aren't affected by it.
But it doesn't look like anyone has made a Kernel that allows for full control over the AMOLED in the S6 so I plan on selling the phone soon.
Lastly I hope someone moves this to a more appropriate section where a DEV can see it, not the basic QA section like how do i change wallpaper.
Click to expand...
Click to collapse
I really don't see the problem. All of the phones today flicker, that's how they show images on the screen. You're not going to find custom roms on this device because AOSP is not working on the phone yet, so if its a deal breaker go ahead and return it and get a new phone.

Yuge said:
I can see the phone flicker even when the brightness is on max setting, because it is not truly the the max brightness of the screen hardware. All the galaxy phones after the s2 did this, except when you turned them to max they stopped flickering. The s6 is the first device that does not allow you manual control over brightness, so I just want to know if custom roms have done this.
IF you don't know what I mean this is how they flicker.
https://www.youtube.com/watch?v=D2f0TZtpRA4
Also you are wrong that the extra brightness is just contrast, it increase the lumens as well as reduces or stops the flicker PWM effect. This is how phones using PWM reduce brightness, by making the screen flicker on and off, whereas in phones like the S2 the actual display dimmed. Some people can see this and are sensitive to it, some people are sensitive to to it but they don't know it, and some people dont see it and aren't affected by it.
But it doesn't look like anyone has made a Kernel that allows for full control over the AMOLED in the S6 so I plan on selling the phone soon.
Lastly I hope someone moves this to a more appropriate section where a DEV can see it, not the basic QA section like how do i change wallpaper.
Click to expand...
Click to collapse
Questions do not belong into Development. It will be clear once you read the respective section rules.. I'm afraid that you'll have to live with the thread in Q&A

Adaptive Brightness

I think I've gotten too used to this feature on my old Note 4 with CyanogenMod, because I really miss it on my V20.
I just got the phone today, and so far, I really enjoy using it. But I'm having trouble with the lack of adaptive brightness. I like to have my phone screen dark (dark themes, low brightness, etc), battery saving or not. With adaptive brightness, I could set the brightness slider pretty low, and still have automatic adjustments; the screen would just be darker in brighter light than it would be on a higher setting.
It looks like LG got rid of this and put the old auto brightness back. I know most people prefer this, but I do not. The screen is just too bright for me. Is there any way to get adaptive brightness on here, preferably without root?
H918 (TMO)

Check out this thread for some ideas.
http://forum.xda-developers.com/v20/help/auto-brightness-t3490880

pbelcomp said:
Check out this thread for some ideas.
http://forum.xda-developers.com/v20/help/auto-brightness-t3490880
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Click to collapse
It looks like Lux is the only option. I've used it before and never really enjoyed it. I installed it anyway but brightness is really jumpy. I guess I have to hope T-Mobile adds it back in.

Zacharee1 said:
It looks like Lux is the only option. I've used it before and never really enjoyed it. I installed it anyway but brightness is really jumpy. I guess I have to hope T-Mobile adds it back in.
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You need to adjust the settings. You can tell the app how quickly/slowly to ramp up/down the brightness. How much of a change in brightness is required before the change is actually made (so the screen isn't jumping around by 1% every time you move it in your hand). You can set brightness levels for certain ambient light levels, all to your choosing. It takes a little bit of time to dial it in, but it's far better than the garbage auto-brightness LG uses. I too miss the built-in adaptive brightness.

Outdoor visibility (max brightness)

Rate this thread to express how well you can see the OnePlus 6T's display outdoors. In case you've been playing Minecraft for 18 months straight, you might not known how to get outside anymore. Well, find the door and walk through it. A higher rating indicates that it has very high maximum brightness and thus fantastic outdoor visibility in direct sunlight.
Then, drop a comment if you have anything to add!

Ok well here I go, I see a ton of views in this section but no comments.
First of all, I'm coming from a Moto Z2 Play and a OnePlus 3T:
The screen brightness of the OnePlus 6T is the major letdown I ever had, it is miserable, sad, despicable... Here is the deal, if I set the screen to 100% brightness in the O6T, it equals to anywhere around 85% or less of the max brightness in my 1 year old Moto Z2 Play !! also, the OnePlus 3T is brighter than the O6T by a tiny notch, but I have to add that my OnePlus 3T is 2 years old and noticeably lost its max brightness, but it still beats the O6T!!!!
If you are wondering about my device, I went to 2 T-mobile stores in the area and compared brightness, they are the same as my unit, so it is safe to say that the O6T is a disappointing device when it comes to screen brightness...
I will edit this post if I get more info or if I need to correct something.

Does the Oneplus 6T support a HDR10 display?
I had the Xiaomi Mi8 Pro and that did.

Looks good on maximum brightness, or very close to it, but anything else looks quite dim.

I must say that the screen is quite dim. I have to keep the phone at 65% or more while indoors to get good visibility from the phone. Not sure what that's about, but highly disappointed.

i found the built in ambient brightness kept setting a little dark and was slow to react to going out into sunlight. switched to velis auto brightness and it is fine now.

thanks for the comments. Was comparing this phone to a couple of others for a blackfriday purchase. Sounds like this one is hard to view outside.

jake21 said:
thanks for the comments. Was comparing this phone to a couple of others for a blackfriday purchase. Sounds like this one is hard to view outside.
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I have zero issues with mine in direct sunlight.

I had to get ElementalX's HBM app to uncover the hidden 40%+ brightness of the screen.

geminium said:
I had to get ElementalX's HBM app to uncover the hidden 40%+ brightness of the screen.
Click to expand...
Click to collapse
I dont know this app, yet. Does this app work on OnePlus 6T without rooting it?

Puddies said:
I dont know this app, yet. Does this app work on OnePlus 6T without rooting it?
Click to expand...
Click to collapse
My apologies I didn't mention it. It has to be rooted

I find the screen itself bright enough. Just the auto brightness is a bit aggressive and can set it too low

But the auto brightness is learning!
It was constantly to low on my phone too. But I dragged it higher every time it was to low. After 1 week of annoying adjusting, it's working fine now!

For those who complains that they have to dial up the brightness slider:
I was like you too, complaining about the auto brightness. However, it has now changed to "adaptive brightness", meaning it learns from your preference. Just turn it on and manually adjust when the auto adjustment doesn't suit you, after a week or two it will get better thanks to machine learning in the system that will learn your preferences.
Also, I remember reading somewhere that the brightness slider now adjusts the brightness in a logarithmic scale instead of linear on older versions of Android.
You can read more about adaptive brightness from an article by Android Authority:
https://www.androidauthority.com/android-pie-adaptive-brightness-927080/
(Also if you are interested, and geeky enough , you can read this excellent article on Android Pie's logarithmic brightness curve here: https://medium.com/@Tunji_D/reverse...ies-logarithmic-brightness-curve-ecd41739d7a2)

The screen brightness is great indoors but not bright enough (even with auto brightness off and on the max setting) for use outside on a sunny day.
Anyone who says otherwise isn't being honest with themselves, with us or possibly both.

jeff7424 said:
For those who complains that they have to dial up the brightness slider:
I was like you too, complaining about the auto brightness. However, it has now changed to "adaptive brightness", meaning it learns from your preference.
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Ha! I wondered why I was so much less annoyed with the auto brightness in the last couple of weeks. Thanks for the tip!
Gotta say, have loved the battery life. I like my screen bright and for a while it forced me to behave.

geminium said:
I had to get ElementalX's HBM app to uncover the hidden 40%+ brightness of the screen.
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Click to collapse
have you a link for this app please?

gege0202 said:
have you a link for this app please?
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Click to collapse
Here we go
https://play.google.com/store/apps/details?id=flar2.hbmwidget

geminium said:
Here we go
https://play.google.com/store/apps/details?id=flar2.hbmwidget
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thank you and what setting do you use?

gege0202 said:
thank you and what setting do you use?
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You're welcome.
Nothing's fancy with the settings, I think I just made it auto (I believe everything's is by defaults)