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· Android Apprentice
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There is lots of information on the internet about cm brightness settings, so I'm not going to go into depth on all of them. This post is about my experiences with dx specific things. (Note: Auto brightness doesn't work in the beta. I can't remember which nightly got the patch.)

First, a quick explanation of what makes the cm auto brightness special:
On the front of your dx, there is what's called an ambient light sensor. This is used to measure the light shinning on the front of your device. On stock moto, the light sensor reports an intensity and there are about 4 different brightnesses that the system chooses based on the current value.

CM is a little different. CM takes the values and averages them over a period of time. ("Window length" in settings). Why is this awesome? Have you ever been in a place where the system keeps jumping back and forth between two different brightness levels? This can be extremely annoying! Averaging the values can help deal with this. Are there any disadvantages? Unfortunately, yes. The system react more slowly to sudden changes in light. Lucky for us, Team Douche thought about this and there are things we can to fix this. Setting the "Reset threshold" will let the system react quickly to massive changes in light.

DX Specific:
If you are like me, using your stock DX in the dark is like letting loose 1000 suns directly into your eyes. Well, fear the dark no longer! CM can help. Check "Use custom." Then, set "Screen dim level" to 2. (Note: In Nightly9, a value of 1 appears to turn the backlight completely off. Not recommended.) Next, tap "Edit other levels..." Here's my settings:



Note: In the left most column, the fourth level says "50." Change this to "65" for best results.

As you can see, the lowest setting is now 2 instead of the moto stock 20. YAY! I bet you wondering, "gpaulu, why do you have two levels with the same brightness value?" Don't worry, I'll get to that. :wink2:

Unfortunately, moto kind of screwed us on brightness reporting on the low end. The lowest reported value is 10. The next one up from that is 100. This sucks for indoors because the true level in my house is around 60 or so. This means that the sensor reports 10 and the brightness level is at 2 while the lights are on. :androidsad:
I found 3 different solutions to this problem. I will tell you the first two and why they suck. Then I shall wow you with my genius!

1) Set bottom brightness level to 20 and use manual brightness widget when the lights are out. *slap* This is a writeup about AUTO BRIGHTNESS, you fool!
2) Don't check "Allow light decrease." This means that the brightness level won't decrease until you turn off the screen. Acceptable solution, but it kind of sucks.
3) Use the settings in my screen shot, then check "Allow light decrease" and set "Decrease hysteresis" to 70% or higher. (I like 90%). Now, if your sensor level ever gets above 10, the brightness will never go back down to 2 until you turn the screen off again. Notice how in my screen shot, the sensor is at 10 and the brightness level is 25. :grin3:

tl;dr;

check "Enabled"
"Reset threshold" 1000lux
check "Use Custom"
<EDIT>
"Screen dim level" 2
Select "Edit other levels" menu. Select "Set number of levels" and change it to 8.
</EDIT>
Use screen shot^. Change 50 in left column to 65.
check "Allow light decrease"
"Decrease hysteresis" 90%

Hope that helps! Let me know if you make any improvements. :android-smile:

<EDIT>
Night mode is awesome for the dark, too! Use the FX widget.
</EDIT>
 

· Android Apprentice
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21 Posts
Discussion Starter · #4 ·
BrentBlend said:
Enable and use custom both checked
window length: 30 s
reset threshold: 1000 lux
sample interval: 1 s
screen dim level: 2

Other Levels
Lower Upper Screen Buttons
0--------10---------2----- 0
11-------14--------25-----255
15-------64--------25-----255
65-------100-------50-----255
101-----2999------96-----0
3000---5999------208----0
6000---7999------246----0
8000----e---------255----0

Allow light decrease checked
Decrease hysteresis: 90%

Everything look good?
Yep :android-smile: thanks.
 

· Android Apprentice
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Discussion Starter · #7 ·

· Android Apprentice
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Discussion Starter · #19 ·
jbrock98 said:
i set mine up exactly like ur pic(except i put 65 where u have 50 in the left column) but under sensor (filter/raw) where it says screen mine says disabled and urs says 25 what did i miss
Do you have autobrightness turned on? Try checking the regular android brightness settings.

OnMy2ndGP said:
@ gpaulu

You may want to include in the OP this:
Select Edit other levels menu. Select Set number of levels and change it to 8.

As you explained the stock setting uses 4 levels but some folks may not know hire to add the extra levels.

DX on CM7 via Tapatalk
I'll do that, thanks.
 

· Android Apprentice
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Discussion Starter · #20 ·
sic0048 said:
I loaded these setting and now when I first turn on my screen it starts bright, then dims and then brightens again. Before changing the settings I didn't get the dimming of the screen when I first turned it on. It is pretty annoying. Any suggestions on how to fix it or what setting might be incorrect?

Thanks,
This happens to me, too. I'm not sure why, but I'm looking into it.
 

· Android Apprentice
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Discussion Starter · #22 ·
jbrock98 said:
auto brightness worked...man the second i clicked it the screen went dark but its doable, hopefully this will save battery as it has been draining at the same pace no matter how little im on my phone ...question tho the brightness toggle on the power widget clicking that i noticed turned auto-brightness back off after i chose it in display settings is that something i'm not to mess with now that i've tweaked these advanced lighting settings?
If the first setting of 2 is too dim for you, you can raise it. Stock is 20 at the lowest, but I prefer 2 so that I can use it in the dark. If you really don't like having the lowest being 2, set it to higher and then when you are in the dark you can just hit the power widget to go down to 2. The power widget should cycle low->medium->high->auto. I think there are settings for it, though, so you might want to take a look at those.
 

· Android Apprentice
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Discussion Starter · #34 ·
rdoane said:
These settings are great. However, it is taking too long for the screen to brighten up when I hit the power/home button to bring up the lock screen. Is there a value I can change to make it adjust brightness faster? Thanks!
It just takes a while to get it's first sample once the screen is turned on. :-\ The only solution would be to raise the brightness of the lowest level. This annoys me too. Hopefully it is something that will improve with newer versions of CM. Changing the sample interval to .5 might help a little.
 

· Android Apprentice
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Discussion Starter · #37 ·
supercell said:
These settings turned off my button lights. I changed 11 to 10 (in the first column) and it fixed the problem. Also, is there any way to edit the upper levels? My third row shows 15---64---25---255
The right most column is for the button lights.
 

· Android Apprentice
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Discussion Starter · #40 ·
Flipfreak said:
Am i the only one that is having force close issues? Everytime i click "Edit other levels" it tells me that Cyanogenmod settings have stopped unexpectedly. Anyone know a way around this?
This was a problem until nightly 4 I think. It doesn't work on the beta.
 

· Android Apprentice
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Discussion Starter · #80 ·
To the people who find these settings too dim, leave the "Screen dim level" at '2' and in the "Edit other levels..." menu, change the '2' to a higher number. Then, you can use the display notification power widget to switch to the dim level ('2') when you are in really dark places.
 
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