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
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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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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
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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.
Has anyone done back to back tests of using Power Saving mode through a whole charge vs. not?
I have done this, I was able to increase my battery life by more than 1 hour. I did have to disable the background screen setting however, it didn't work great with the stock email app, and my emails appeared blank, because it would change the text to white, but not change the background to black.
I'm in the process of doing this
it worked reasonably well, probably about 20% or so improvement. I then uninstalled a bunch of bloat and lowered brightness more and have it at 2 days with light use.
I'm trying to figure this out as well. Although I can very easily tell the difference with power savings on, it DEFINITELY takes a performance hit. If it nets less than an hour improvement, totally not worth the performance hit.
I was able to make it all through today and finished with 28%, all with power savings off. I think the auto brightness tends to keep the screen a little too bright for indoor settings, so I turned that off and went with a nice low level.
I might try power savings without the CPU limit option checked. What power savings is applied to the screen? Is it just refresh rate and brightness?
I noticed a difference when using screen power saving. The description says it causes slightly lower frame rates which I haven't actually noticed. But I did notice lower battery usage from the screen.
I didn't want to touch the CPU savings because I don't really want to sacrifice performance to save battery.
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Well today I started using juice defender and battery life is looking great.
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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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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