I upgraded my phone from 8.1 to 9.0 yesterday and noticed that my brightness slider is now much higher up to 100% than it used to be. I have to make it go much higher to get bthe same brightness. Going to my old brightness setting makes the screen really dim. Is this a bug?
BoboBrazil said:
I upgraded my phone from 8.1 to 9.0 yesterday and noticed that my brightness slider is now much higher up to 100% than it used to be. I have to make it go much higher to get bthe same brightness. Going to my old brightness setting makes the screen really dim. Is this a bug?
Click to expand...
Click to collapse
Nope. New linear scale on the brightness slider...
jaytv said:
Nope. New linear scale on the brightness slider...
Click to expand...
Click to collapse
What does this mean though? Because now it's really dark until you get to over half of the bar then it shoots up quickly. Doesn't make much sense to me. I'm not using auto brightness btw.
BoboBrazil said:
What does this mean though? Because now it's really dark until you get to over half of the bar then it shoots up quickly. Doesn't make much sense to me. I'm not using auto brightness btw.
Click to expand...
Click to collapse
Something to do with the non-linear (logarithmic) scale being closer to real world physics or something like that, not exactly sure why it should matter, but Google and others have decided so. It just means that the "graph" of the scale is not a straight line but a curve.
Brightness was fine before the June update. After the June update I have to set it to 83% brightness to get what I was getting at 50% brightness. It's a bug. I flashed back to 8.1 for now.
Do you have problems with auto brightness in MIUI roms? Your screen brightness gets extremely dark in low light conditions, or the brightness spikes just with a few increase of light?
For low brightness problem, actually you can adjust the minimum autobrightness in slider bar, but sometimes it will reset back to default minimum brightness. For example if you turn off auto brightness in game, when you turn it on again, it won't resume your settings. As a result the screen will get darker than your adjustment.
I created magisk module to fix that. This will increase the minimum brightness in low light, and also reduce the over brightness in medium and high ambient light. The result will be smoother auto brightness step, and be more convenient for your eyes!
There are two modules, one for Miui 10 running Android Pie, and the other ones for Miui 10 running Android Oreo. Dont install wrong module, because there are much more brightness values in Android P than O.
The Oreo version may be not as good as Pie version, because i tested it in Redmi Note 5. My Mi Mix 2s currently running Miui 10 P beta 8.8.16 for Pie version testing. But it should give the same result. Oreo version works in Miui 9 too, but may results different.
So what this module do? It adds framework-res to the /system/media/theme/default. With a magisk module you can do it systemlessly! To install it, just download the module then browse it in Magisk Manager.
If you dont like my setting values, just unzip my module, find framework-res file, unzip it, then edit the theme_values.xml to any values you want under "config_autoBrightnessLcdBacklightValues", then zip all back.
Download links in attachment.
Guide:
V1 for lowest brightness (best battery)
V2 for a bit brighter in low light
V3 for brighter brightness (best for full edge cover tempered glass user)
V4 for more responsive and smoother auto brightness. Values are about similar to v3.
To check if this module works;
Tap the Kernel Version in About Phone 5 times, then you will enter CIT. Go to Light Sensor. Cover your phone light sensor on upper bezel (lower for Mi Mix 2s) with your palm till the light sensor value reach 0. If the backlight is not going under 100/130 (pie) or 7 (oreo), then this module works! My module limits the minimal auto brightness, which the original can reach to 20 which is ridiculously very dark.
This module may work on any MIUI-based rom phones with IPS display, not just Mi Mix 2s.
I also created this module for Mi 9 (amoled display). Visit my thread HERE
Notes:
- Only V4 has responsitivity adjustment. More responsive means it needs less light increments to trigger auto brightness adjustment.
- Editing the values can cause a mess. Add .disable_magisk file in cache partition if your phone cant boot then uninstall the module in manager.
Thanks have flashed this and will see how it goes over a day/night. Initially it's good though.
I find the auto bright annoying sometimes especially given how easy it is to cover the bottom chin sensors on this phone.
M.
mattman83 said:
Thanks have flashed this and will see how it goes over a day/night. Initially it's good though.
I find the auto bright annoying sometimes especially given how easy it is to cover the bottom chin sensors on this phone.
M.
Click to expand...
Click to collapse
Thanks for trying. I hope you get better auto brightness experience after a day..
Yeah the worst part is the light sensor in mix 2s located in bottom left where you could get the screen unseenable while using two/left hands. If its in center, it would be better.
My other mi phone with forehead light sensor often gets annoyingly too dark. I never satisfied with miui default auto brightness and always use this mod since miui 7. Fortunately, this method still works with some adjustment in value.
Ok so it's been a couple of days and this has helped a lot imo at least for indoors (haven't really had any major outdoors time...).
Still gets dark enough when it's really dark, but certainly for normal indoor conditions the default settings you have are much better. Xiaomi settings often got too dark, and you can adjust the slider, but then the slider goes back after while anyway :-\
M.
Just reporting back after a while with this and more miui updates, seems the later beta builds have changed something in the brightness in that I don't know if this mod works any more, or if it needs tweaking to provide the same brightness levels it used to.
I had a really quick play with values as suggested in the op but it's well outside my field of expertise and couldnt get it to do much different
M.
@arddy1
... where to find the default values ?
I'm on Poco F1 and want to compare to the default values and adjust theme_values.xml
mattman83 said:
Just reporting back after a while with this and more miui updates, seems the later beta builds have changed something in the brightness in that I don't know if this mod works any more, or if it needs tweaking to provide the same brightness levels it used to.
I had a really quick play with values as suggested in the op but it's well outside my field of expertise and couldnt get it to do much different
M.
Click to expand...
Click to collapse
Sorry for late reply. This mod still works in miui 8.10.11 global. Here are the screenshots of screen light value in lowest brightness. The lower one is the original. Mine still brighter in lowest light.
der_Kief said:
@arddy1
... where to find the default values ?
I'm on Poco F1 and want to compare to the default values and adjust theme_values.xml
Click to expand...
Click to collapse
Here's the screenshot from framework_res in rom 8.10.11 global
So it only works on miui
Yes since it's a miui issue. Stock android roms don't reset brightness like miui.
Stock roms just set the brightness bar where you want, some will have the ability adjust the total curve even. Miui if you raise brightness it will change itself back after 5 mins or so, so it's needed to change the system default values
M.
mattman83 said:
Yes since it's a miui issue. Stock android roms don't reset brightness like miui.
Stock roms just set the brightness bar where you want, some will have the ability adjust the total curve even. Miui if you raise brightness it will change itself back after 5 mins or so, so it's needed to change the system default values
M.
Click to expand...
Click to collapse
To me it happens on the treble roms. Exactly as in miui.. might be a vendor thing idk
Can I use this on Vince running Resurrection Remix 6.2.1 Android Oreo? I am having auto brightness issue in custom ROMs too.
Shubhambora said:
Can I use this on Vince running Resurrection Remix 6.2.1 Android Oreo? I am having auto brightness issue in custom ROMs too.
Click to expand...
Click to collapse
No, its for miui only. Even using it on miui other than i specified in first post may not work
Can you check with the latest miui 8.11.15?
I'm currently using this but sometimes the brightness still jumps from dim to bright
Thanks for this fix!
Can you make flashable zip version via TWRP recovery? I don't use Magisk and I don't want to be rooted
Sent from my MIX 2S using Tapatalk
Max auto brightness level can be increased from current value?
From 4095 to 4500
It would better in sunlight
Sent from my MIX 2S using Tapatalk
hi any chance to have it without root?
graw2 said:
Max auto brightness level can be increased from current value?
From 4095 to 4500
It would better in sunlight
Sent from my MIX 2S using Tapatalk
Click to expand...
Click to collapse
No. 4095 is the max value.
H0unter said:
hi any chance to have it without root?
Click to expand...
Click to collapse
Yes you can. As long as you unlock bootloader and place the framework-res file in system path i mentioned in first post with twrp
I tried your auto brightness fix. And surprisingly it seems to work on the Mi Max 3 with xiaomi.eu 8.12.6v2 as well.
palmdude said:
I tried your auto brightness fix. And surprisingly it seems to work on the Mi Max 3 with xiaomi.eu 8.12.6v2 as well.
Click to expand...
Click to collapse
Agreed, on 8.12.13 xiaomi.eu (pie) Mi Max 3 it works very well. Thank you for your efforts OP.
Hi guys, I was wondering Does anyone know why the brightness in android pie aosp is so low compared to miui? and if there is any way to increase it?
+1
Android Pie uses adaptive brightness and learns what your preferred brightness is over time. Keep adjusting your brightness for a week or so.
abdullah1994uk said:
Android Pie uses adaptive brightness and learns what your preferred brightness is over time. Keep adjusting your brightness for a week or so.
Click to expand...
Click to collapse
The problem that I see is not the automatic brightness, but in the low brightness, for example, 10% brightness in Miui is 35% in PIE, When I go out on the street with miui I use the brightness in half, but in android foot I have to use the maximum brightness and it still costs a bit to see. I think the example is understood.
what kernel are you on?
Google changed the brightness algorithms in P, so what you have is what google made it to be.
My current daily driver is mokee 8.1.0 rom, i finally wanna switch to pie, i tried a few pie roms but i noticed low brightness outdoors and screen was too dim on pie, where as on mokee oreo it is bright enough outdoors. At 50 percent brightness oreo is way brighter than pie rom.
If there is any pie rom with proper brightness do let me know?????
Auto brightness or adaptive brightness i prefer to keep off and use manual slider for brightness..
Brightness is the same it's just that Google changed the values in the sliding bar, so you need to turn it up in order to achieve similar brightness to oreo. Battery consumption will be the same tho
alexmason90 said:
Brightness is the same it's just that Google changed the values in the sliding bar, so you need to turn it up in order to achieve similar brightness to oreo. Battery consumption will be the same tho
Click to expand...
Click to collapse
I guess you are right i will flash pie rom again and see the results.
I am coming from OnePlus 5T then Mi 9. Both of which have an incredibly dark minimum brightness which was perfect for night time.
In OnePlus 5T, there was a noticeable step down after which it got incredibly hard to use with any sort of light
In Mi 9, it's literally called Night Mode where if the ambient light is low and your brightness is set to minimum, it became incredibly dark
Mind you, this mode, on both phones, would slightly shift the colours but it's worth it for having a more comfortable night experience.
On Mate 20X, the minimum brightness seems much higher compared to the mentioned phones.
It seemed to me to be higher than an iPhone SE(LCD display)
I wonder if there's a way I could lower Mate 20X's brightness lower than what huawei allows (hopefully without root).
Install night mode for huawei from playstore.
I use an app called Darker. Great for the movie theater.
*EDIT* It appears that EMUI 9.1 added this thing same way as Oxygen OS where if I drag slider all the way left, it goes to a very dark mode
Sent from my HUAWEI EVR-L29 using XDA Labs
fp1707 said:
*EDIT* It appears that EMUI 9.1 added this thing same way as Oxygen OS where if I drag slider all the way left, it goes to a very dark mode
Sent from my HUAWEI EVR-L29 using XDA Labs
Click to expand...
Click to collapse
You have 9.1 EMUI on your EVR-L29?
CCJ22 said:
You have 9.1 EMUI on your EVR-L29?
Click to expand...
Click to collapse
Yup. I got it using HiCare app
Sent from my HUAWEI EVR-L29 using XDA Labs
Yeah, EMUI 9.1 brightness slider IMO is a bit unbalanced, but goes super dark.