Auto brightness erratic - ZTE Axon 7 Questions & Answers

Has anyone noticed the auto brightness feature isn't as accurate as others? I feel like the brightness slider especially is not linear. The first 30 percent of the bar contains a lot while the next 70 is only slight increments.
It also acts weird when it's supposed to increase brightness but the screen stays dim. It's not quick to refocus itself. The sensor definitely isn't as accurate as my S7 Edge.

It's more accurate than my 6p. No issues for me.
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[REQ] Lowering the minimum brightness

When I put the brightness slider in settings all the way down, it still seems pretty bright. That is still pretty bright especially in a dark room. Beautiful brightness widget reports that the current minimum is 11%. From doing a little reaserch, I know that the absolute lowest level that the backlight can run is at 3%, and that in some hero roms the lowest you can set it to is 6%. Does anyone know which files control brightness? I am sure that we can get the screen running at least 5% lower but I need some help figuring out what to change. BTW, I am running CM5T7. Long live XDA!
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cm7.02 Turn off Automatic brightness may improve battery life! It works for me!

I did a comparison test between Auto brightness On and OFF. Both time have wiped battery state to just make sure it wasn't the wipe that improved battery life.
no widgets were placed, google services were up all time.
cellphone signal were pretty good. 3G all the time. -70dbm~-80dbm, sometimes was -65.
Under the same usage, I managed to get extra 20% of battery left for my phone with Auto brightness off.
Anyone wants to try this?
btw my screen brightness was set 50%, so i'm not cheating
Most people already knows about this. if you want to save the battery turn off the auto brightness
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I usually run all my devices at 25% brightness. Then again, I only ever need a phone to last about 11 hours at a time.
eunkipark92 said:
Most people already knows about this. if you want to save the battery turn off the auto brightness
Sent from my HTC Vision using Tapatalk
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maybe is a software issue so that the sensor is ON all the time and using the cpu to calculate the ambient light condition?
ohcanada said:
maybe is a software issue so that the sensor is ON all the time and using the cpu to calculate the ambient light condition?
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I think the main issue, is that auto brightness sets the brightness too high for most conditions (at least in terms of usability vs. battery life). I keep mine at 35% most the time.
And this has nothing to do with CM7 in particular, this is true on any ROM, including stock.

Light sensor

Had the phone about a month.
Just noticed the display has gone dim. (Auto brightness).
Doesn't seem to be reading the brightness correctly.
In a room with ceiling on using yaab sensor is showing a reading of 8. I'm 99% certain in the past this has been 50-60 under similar conditions.
Android sensor box 7-9 luxes again this seems to be a low reading
Tried:
Rebooting
Manually upping and downing the brightness
Making sure power saver is off
Any suggestions on how to resolve - recalibrate
http://forum.xda-developers.com/showthread.php?t=2491443
Sent from my SM-N900T using Tapatalk

efficiency of ambient display, adaptive brightness and black ui on Amoled

hey, i want to know if these 3 features drain battery or aid in better battery life
ambient display - i know it's an amoled so only few pixels are turned on, but what i want to know is do people face a much better battery life with this feature turned on and by that i mean like a significant difference, same with adaptive brightness as compared to toggling it yourself. And lastly black color on amoled screens, how much difference in battery life can you get approximately by using a black ui throughout, like 10% or 25% ?
the battery improvements are not noticeable. even in a full black background, but that's just my experience.
rrohanjs said:
hey, i want to know if these 3 features drain battery or aid in better battery life
ambient display - i know it's an amoled so only few pixels are turned on, but what i want to know is do people face a much better battery life with this feature turned on and by that i mean like a significant difference, same with adaptive brightness as compared to toggling it yourself. And lastly black color on amoled screens, how much difference in battery life can you get approximately by using a black ui throughout, like 10% or 25% ?
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Honestly, the gains in battery life from using a black background would be pretty small in my opinion. I don't see how using ambient display would save any battery at all, as opposed to what? The biggest gain would be adjusting brightness manually instead of using adaptive brightness, adaptive brightness can be pretty heavy on the sensors.
Heisenberg said:
Honestly, the gains in battery life from using a black background would be pretty small in my opinion. I don't see how using ambient display would save any battery at all, as opposed to what? The biggest gain would be adjusting brightness manually instead of using adaptive brightness, adaptive brightness can be pretty heavy on the sensors.
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I'm trying to compare ambient display to constantly unlocking the phone to check for the time or notifications
rrohanjs said:
I'm trying to compare ambient display to constantly unlocking the phone to check for the time or notifications
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In that case I believe using ambient display would be the best option.

Display not that bright on a clear/ sunny bright day at high noon?

I have been playing with the brightness levels, adaptive, etc, etc, etc and I have noticed that my Note 8 is brighter or "easier to read" on a bright sunny day.... Anyone else notice that this screen isn't cutting it or is hard to read when the ambient light is really bright?
Exactly the same observation from me. The Note 8 display is definitely better.
Is it only with auto brightness? I'm wondering if they made the lighting less aggressive to help battery life with the 120Hz screen and all.
In manual mode, maxed out brightness, the Note20 Ultra should smoke your Note8.
PsiPhiDan said:
Is it only with auto brightness? I'm wondering if they made the lighting less aggressive to help battery life with the 120Hz screen and all.
In manual mode, maxed out brightness, the Note20 Ultra should smoke your Note8.
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With adaptive brightness on it is brighter than the Note 8 (both phones sitting with a torch shone in the sensors) however in normal use on full brightness the Note 8 is definitely better.
I feel they limited the max manual brightness on the Note 20, probably for battery life and to prevent damage/burn in with the display.
kradcliffe said:
With adaptive brightness on it is brighter than the Note 8 (both phones sitting with a torch shone in the sensors) however in normal use on full brightness the Note 8 is definitely better.
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I just played with a Note9 and the Note20 Ultra was CLEARLY brighter in manual mode at max brightness. It wasn't even a competition. So I doubt the Note8 would fare any better. I wonder if yours has an issue of some sort.
heads up, you may have to first activate "Performance Mode" under the battery settings. Once you apply there is also an option to keep brightness neutral, add 5% or 10%. As a Note 8 user remember activating this long ago then reverted back to "Optimized" while keeping the brightness as is.
Snowleopard1900 said:
I have been playing with the brightness levels, adaptive, etc, etc, etc and I have noticed that my Note 8 is brighter or "easier to read" on a bright sunny day.... Anyone else notice that this screen isn't cutting it or is hard to read when the ambient light is really bright?
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Also noticed the same

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