Develop Bugs

[Q] Display brightness

Hi,
is there any way to change brightness to lower level? My previous phone, Xperia Mini, could decrease brightness to absolute black (I didn't need it, but still...). But my Xperia M is still pretty shining in dark even in the lowest level. It burns my eyes. All I could find were some stupid filters. Is there any better solution (root or not, I don't care).
Thanks.

dave_lister said:
Hi,
is there any way to change brightness to lower level? My previous phone, Xperia Mini, could decrease brightness to absolute black (I didn't need it, but still...). But my Xperia M is still pretty shining in dark even in the lowest level. It burns my eyes. All I could find were some stupid filters. Is there any better solution (root or not, I don't care).
Thanks.
Click to expand...
Click to collapse
Click

Gravitybox has some brightness abilities to reassign lux-brightness pairs. Don't know if it can go under normal brightness though...

FindYanot: That's exactly what I don't want. I want something on HW level (lower led (or what they use) intensity), not just transparent black layer.
KoenGo: Do you think, it can work? I don't have root yet (I want do it, if I find solution), so I can't try.
Nobody faced this problem? Everyone is happy with light intensity?

Yes it's too much but if you lower that level screen will probably start flickering which is much more annoying than just too bright screen. This is common, hw related issue that can be found on other devices with low quality lcd.

I'm trying but it's kinda hard to tell if there's any difference since you have to reboot after applying new minimum. I would say there isn't much difference. I'll retry in the dark some time.
Doesn't crash or flicker or anything though, so that's the good news
Personally, I would not root just for this and just use the filters. What is your problem with them? That it uses more battery than a hardware method would, or just that it's impractical? In the second case, lux might be worth looking into. I've never tried it myself since it isn't free, I just use the filter u hate

Tried it in the dark and I believe there is a difference, although very small (barely noticeable) and imho definitely not worth rooting and installing framework.

OK. That's bad, but thanks for your time

Well I rooted my phone and I tried gravitybox and I don't think there is a difference. But still thanks.

My setup now is that I can (de)activate the filter app by swiping over the navigationbar. It's still a filter so it doesn't prolong battery life or anything, but it is a convenient way to enable or disable it.
If you would ever come across something better, please let us know

dave_lister said:
is there any way to change brightness to lower level?
Click to expand...
Click to collapse
Yes, but you need root.
Execute in Terminal or run attached file as script via Root Explorer / GScript:
Code:
#!/system/bin/sh
su
echo 5 > /sys/class/leds/wled/brightness
Minimal stock value 27, we change it to 5 or any other you want.
Maximum value: 255
Bug: backlight will be flickering.

Thank you. It really works! (I rewrite it manually without any script or terminal)
Just one thing. The brightness file is used for current state and when I change intensity in options (or select auto), it's rewritten. So, is there any way to change minimum level permanently (minimum on bar or 0 lux = 5 or something instead of stock 27)? Or is it possible to make some shortcut to rewrite the file with one click? Or use some tasker for it?
But it doesn't matter much. Even this way, without any shortcuts, is awesome. I'll test it in night, but even now (during a day), I can see a difference.

dave_lister said:
So, is there any way to change minimum level permanently
Click to expand...
Click to collapse
Yes, but only by editing file in kernel, it requires recompiling.
Then pulled slider to the left will set really minimal value.
Here commit from ElixER kernel for 4.1.2, originally this trick comes from there.
dave_lister said:
Or is it possible to make some shortcut to rewrite the file with one click? Or use some tasker for it?
Click to expand...
Click to collapse
Yes, GScript app, as far I know can create shortcuts.
Or in Tasker create task with only one action "Run shell" (tick Root) and then create shortcut in launcher.

iks8 said:
screen will probably start flickering which is much more annoying than just too bright screen. This is common, hw related issue that can be found on other devices with low quality lcd.
Click to expand...
Click to collapse
Always was interesting what exactly causing this flickering at hardware side. Led's controller?
Please can you provide any information and example devices with same issue?

Bonoboo said:
Always was interesting what exactly causing this flickering at hardware side. Led's controller?
Please can you provide any information and example devices with same issue?
Click to expand...
Click to collapse
For example galaxy tab 2 (I have one), on the lowest brightnes level it flicker a lot (especially annoying when it's displays white surface), my sister's asus memo pad 7 hd has this issue too but less noticible. Yes, it's somehow related to device's power managment, in galaxy tab 2 forum people saies that it's flicers more when wifi signal is low so as I understand: low signal -> device need more power for wifi -> device gives less power for leds -> screen is more flickering but I could be wrong since I'm almost total electroinc noob I will test that later
p.s.
This issue is really common, even s4 has this problem according to this https://www.youtube.com/watch?v=5yZaQRr76f8 So Sony has done good move with setting so high the lowest brightnes level (at least this hides unusable levels). Really my eyes hurt when I'm using my gtab2 at night although xperia does the same thing but in different way xD

Tested your method and at least in my device, the LED flickering was barely noticeable and only appeared when I set very low values (like 1). Setting as 3 and onwards gives zero flickering here (or I'm just blind, not noticing it)...

You're right. Values about 3, 4, 5 are quite ok.
I made the GSscript shortcut and I¨m finally happy.
I think the flickering is caused by pwr regulation with low frequency. But I'm not electrician either.

Android 9.0 display problem

A lot of people are experiencing this problem - the screen after the update is dim. Before Android 9.0, I was using my phone with the brightness set somewhere from 25% to 40%. With the Pie update the brightness is all the way up at 100% and it doesn't even come close as what it was on android 8.1.
I also think that they didn't just changed the way the values are displayed from the slider as it is mentioned in the official statement. The max brightness on android pie is not the same as the max brightness on android 8.1.
So my question is the any possible way to fix this issue? There is no official way to downgrade to android 8.1. I have already try out everything turning on and off different toggles and setting.
My phone is xiaomi a2 lite global

turn off auto brightness

merlin.berlin said:
turn off auto brightness
Click to expand...
Click to collapse
I did. Also i turned off the smart battery feature that was introduced with android 9. Nothing changed. Is there any third party application that could resolve this issue?

I read somewhere else that the new automatic brightness in Pie requires some training from the user, to learn its habits. You have to manually adapt the brightness for two or three days, after that the phone will learn your preferences and it should work much better.

katoda_ltd said:
I read somewhere else that the new automatic brightness in Pie requires some training from the user, to learn its habits. You have to manually adapt the brightness for two or three days, after that the phone will learn your preferences and it should work much better.
Click to expand...
Click to collapse
Exactly. It needs to learn your preferences. Which it does fairly well.

It is off
Jimmiatus007 said:
Exactly. It needs to learn your preferences. Which it does fairly well.
Click to expand...
Click to collapse
2 weeks passed, I tried on and offno difference with Android 8.1 the display was amazing,now is dim and dark, cant read nothibg especially in sun light

azsamwe said:
2 weeks passed, I tried on and offno difference with Android 8.1 the display was amazing,now is dim and dark, cant read nothibg especially in sun light
Click to expand...
Click to collapse
What do you mean by on/off. You have to keep Adaptive brightness on...

Screen gets annoyingly whiter on direct sunlight or bright light

Hi! I'm having an issue, and although I have been searching, can't seem to find a solution or someone reporting this...
My screen is getting "whiter" (in the sense of the whites in the representation of the light curves, I think it can also be defined as a bump in the "gamma") when it is under direct sunlight or bright light, and as a result colours just look unfaithful and cheap, just plain awful, and I'm very sensitive to this. Don't get me wrong: I'm not talking about brightness: just screen colours representation, my auto brightness is off. When I first bought the phone I just didn't have this issue, I believe it started once I upgraded to Android Pie, maybe the developers thought this augments the readability of the screen, but I think it's just odd that this crap is mandatory and can't be disabled at all. Anyone noting this issue? WHY IS DIS? any workaround, any way of disabling it? Hope someone has an answer to at least one of these questions! Thanks!
My phone: Xiaomi A2 Lite - Android Pie - May security patch (I think May was the latest, I'm surely on the latest) - camera2 api enabled & GCam installed

zacox123 said:
Hi! I'm having an issue, and although I have been searching, can't seem to find a solution or someone reporting this...
My screen is getting "whiter" (in the sense of the whites in the representation of the light curves, I think it can also be defined as a bump in the "gamma") when it is under direct sunlight or bright light, and as a result colours just look unfaithful and cheap, just plain awful, and I'm very sensitive to this. Don't get me wrong: I'm not talking about brightness: just screen colours representation, my auto brightness is off. When I first bought the phone I just didn't have this issue, I believe it started once I upgraded to Android Pie, maybe the developers thought this augments the readability of the screen, but I think it's just odd that this crap is mandatory and can't be disabled at all. Anyone noting this issue? WHY IS DIS? any workaround, any way of disabling it? Hope someone has an answer to at least one of these questions! Thanks!
My phone: Xiaomi A2 Lite - Android Pie - May security patch (I think May was the latest, I'm surely on the latest) - camera2 api enabled & GCam installed
Click to expand...
Click to collapse
That's from Xiaomi, they have it in MIUI and in the Android one, it's just to make it look better under the Sun (you can not disable it normally, you need adb)

zacox123 said:
Hi! I'm having an issue, and although I have been searching, can't seem to find a solution or someone reporting this...
My screen is getting "whiter" (in the sense of the whites in the representation of the light curves, I think it can also be defined as a bump in the "gamma") when it is under direct sunlight or bright light, and as a result colours just look unfaithful and cheap, just plain awful, and I'm very sensitive to this. Don't get me wrong: I'm not talking about brightness: just screen colours representation, my auto brightness is off. When I first bought the phone I just didn't have this issue, I believe it started once I upgraded to Android Pie, maybe the developers thought this augments the readability of the screen, but I think it's just odd that this crap is mandatory and can't be disabled at all. Anyone noting this issue? WHY IS DIS? any workaround, any way of disabling it? Hope someone has an answer to at least one of these questions! Thanks!
My phone: Xiaomi A2 Lite - Android Pie - May security patch (I think May was the latest, I'm surely on the latest) - camera2 api enabled & GCam installed
Click to expand...
Click to collapse
Yeah i also have been searching for its solution its very annoying

Jaie55 said:
That's from Xiaomi, they have it in MIUI and in the Android one, it's just to make it look better under the Sun (you can not disable it normally, you need adb)
Click to expand...
Click to collapse
thanks for your reply! and, can you please tell us how to disable it via adb? thanks in advance!

Samsung galaxy note 10 plus Refresh rate 90 120hz

Hi guys,
Simply question, IT is possible to change refresh rate or software overclock display to more Hz?
Or any APPS on this?
Unlock 90hz or 120hz anything else?
Thanks for answer
:good:

Kasp3rsky said:
Hi guys,
Simply question, IT is possible to change refresh rate or software overclock display to more Hz?
Or any APPS on this?
Unlock 90hz or 120hz anything else?
Thanks for answer
:good:
Click to expand...
Click to collapse
nope , that app used for s20 not work for n10+ , i think n10+ locked to 60hz
Sent from my SM-N975F using Tapatalk

Kasp3rsky said:
Hi guys,
Simply question, IT is possible to change refresh rate or software overclock display to more Hz?
Or any APPS on this?
Unlock 90hz or 120hz anything else?
Thanks for answer
:good:
Click to expand...
Click to collapse
No, if it was the relevant option(s) would be visible and available to us on the phone.
Currently people are using activity launchers to run a menu option for the S20 that is hidden on the Note 10+. While it can be toggled it appears to not work at all on the Note 10+ due to hardware limitations.

scottusa2008 said:
No, if it was the relevant option(s) would be visible and available to us on the phone.
Currently people are using activity launchers to run a menu option for the S20 that is hidden on the Note 10+. While it can be toggled it appears to not work at all on the Note 10+ due to hardware limitations.
Click to expand...
Click to collapse
Do you have a link?

Reaper1337 said:
Do you have a link?
Click to expand...
Click to collapse
Hi,
https://forum.xda-developers.com/galaxy-note-10/how-to/toys-oneui-2-1-update-t4077297

Tried the activity launcher and I assure 100% note 10+ locked to 60hz...

I installed the app and applied the setting as well. Not so much as a placebo effect. Checked at testufo and can confirm only 60hz. Is there anything useful anyone has discovered in this app?

The Problem will be the drivers for the display
To achieve more than 60hz you would have to create a custom resolution and refresh rate
Effectively overclocking the display

Anyone ever checked what resolution and refresh rate the Note 10+ can actually use, by running the shell command “dumpsys display,” in adb?

According to this article the setting option was a mistake.
https://piunikaweb.com/2020/04/07/s...-120hz-refresh-rate-but-dont-get-too-excited/

by the fact the display was launched as purely 60hz it is probably a hardware limitation.
LCD/LED/other panels are manufactured to work at a maximum speed, it will be hardware controlled through the display chips, so unless you can swap out the controller chip and the panel is actually capable of altering the individual points at that speed you are likely never getting past 60hz. so unless the hardware was designed for 120hz and Samsung chose to just massively underclock the screen (but why would they do that when it would have been a good brag?) there is likely no way past 60hz as since the change from CRT the only way to overclock a screen is if the screen is shipped underclocked by the manufacturer.
so the reason it doesn't show up in the standard settings without extra steps should tell you this option being there is a mistake of them not removing the setting deep enough in the software.

Question X80Pro LTPO refresh rate not working

Good day. Please can someone give advice - i got CN X80pro V2185A 12\256.
When i set screen refreshrate to smart switch i get only 60 and 120 real refresh rate via counter.
if i touch screen 120hz, after 3-4 sec it drops to 60 and never less.
i make full restore, update last firwware, but no changes.

MrDiegoSPB said:
Good day. Please can someone give advice - i got CN X80pro V2185A 12\256.
When i set screen refreshrate to smart switch i get only 60 and 120 real refresh rate via counter.
if i touch screen 120hz, after 3-4 sec it drops to 60 and never less.
i make full restore, update last firwware, but no changes.
Click to expand...
Click to collapse
You're in dark mode I bet. It doesn't work in dark mode it seems. Annoying

nope, not in dark

MrDiegoSPB said:
nope, not in dark
Click to expand...
Click to collapse
OH I see! That looks messed up. Funtouch os? I think that'll probably be fixed with an update cause you seem to be on all the correct options.
You're using auto brightness?

lawtq said:
OH I see! That looks messed up. Funtouch os? I think that'll probably be fixed with an update cause you seem to be on all the correct options.
You're using auto brightness?
Click to expand...
Click to collapse
yes auto brightness

Wish I could help, but I have the China dimensity 9000 version with no issues

asked vivo CN customer service, this is their refresh rate strategy for dark mode, so it wont be fixed, probably they have their reason behind for it

so its looks like
1) 1-120 wont work in dark mode theme
2) 1-120 wont work in low brightness
3) 10-120 work in 30%+ level
4) 1-120 work in 70% levels

If I set my refresh rate to 120hz should it stay there wherever I am or whatever I am doing woth my phone? Coz even in homescreen or using chrome it still goes down to 10.