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.
Related
The screen auto brightness has always bothered me. I love the convenience of using it but it simply doesn't work like I believe it should.
For example. At night while laying in bed in a completely dark room I'd expect the screen to dim to it's lowest setting. When in actuality it does not, and it always seems to bright. On the other hand when I'm outside in direct sunlight I'd like for the brightness to be at 100%. Again this doesn't appear to be the case.
So what's the issue here? Is there a dev out there who has found a better solution?
I agree with you on this one. The automatic brightness on the EVO is just silly. Its lowest is 25%, by the way. There should be a way to choose what you want the minimum/maximum brightness to be :\
I've seen this question before, some time ago, but still no solution. I've seen someone say use total screen control trial (free in market) and tweak the filter settings to essentially do the dimming value you want.
blakeboys said:
I've seen this question before, some time ago, but still no solution. I've seen someone say use total screen control trial (free in market) and tweak the filter settings to essentially do the dimming value you want.
Click to expand...
Click to collapse
I have been searching and searching for an answer to this. I don't want to have to use third party programs if I could just change the thresholds myself.
In Calkulins rom he says he lowered the maximum auto brightness to save on battery, and this question has been asked there, with no answer (except for the usual "just use this program to do it").
Someone has to know where the settings for this are. I'm getting more advanced at dealing with apk's, jars, etc... But I haven't been able to find which one controls this. Build.prop has some brightness settings in it, but it's just the default setting when not using auto-brightness (I think).
Anybody ?!?!?!?!?!?!?!?!?
I know it's possible, because Cyanogenmod has the option to tweak the levels in CM Settings.
I just know I've seen an app here on xda, but don't remember what it was.
plainjane said:
I know it's possible, because Cyanogenmod has the option to tweak the levels in CM Settings.
I just know I've seen an app here on xda, but don't remember what it was.
Click to expand...
Click to collapse
I know it must be here too but but searching comes up with nothing new. I've tried autobrightness, auto-brightness, with min and max levels, thresholds, custom settings and every other search I could think of.
Maybe I'm leaving out the one keyword that would finnd it... lol
http://forum.xda-developers.com/showthread.php?t=901540 he had some settings for it he might be able to help
Sent from my unrEVOked using xda app
roscoenr said:
http://forum.xda-developers.com/showthread.php?t=901540 he had some settings for it he might be able to help
Sent from my unrEVOked using xda app
Click to expand...
Click to collapse
Thanks for looking, but unfortunately I've been there already. It basically allows you to toggle between auto brightness and a variety of static levels, but doesn't affect the min and max of auto brightness when you are in that mode.
I'm trying to be able to leave the phone in auto brightness mode all the time and just have the screen get to it's max available brightness when I'm in a bright area, and minimum available brightness in a dark area.
fgr said:
I know it must be here too but but searching comes up with nothing new. I've tried autobrightness, auto-brightness, with min and max levels, thresholds, custom settings and every other search I could think of.
Maybe I'm leaving out the one keyword that would finnd it... lol
Click to expand...
Click to collapse
I did a quick search too, but I couldn't come up with what I saw before. I remember thinking "neat, but I don't need that because it's built into the Rom". It's driving me nuts now too :/
You could always contact one of the devs from CM & find out what files need to be edited.
Basically it sucks. It actually drives to crazy so I just don't use it anymore. When I am on tapa I put the background to black so it's a bit easier on the eyes when I am laying in bed going through the forums before sleep
I was wondering if there is anyway to lower the brightness of the display even further than the lowest setting on Andriod. I realized I used the phone a lot in the dark ( i take long walks at night) and the lowest setting is still too bright for my eyes.
Anyone know an app or someway of lowering the brightness even further?
thanks in advance.
have you try an application filter screen, it is available on market...
fajarep said:
have you try an application filter screen, it is available on market...
Click to expand...
Click to collapse
O man Thank You so much. This makes my daily walks while reading the news a lot more enjoyable.
sure, no problem, i love that application too, but can't find a way how to enabled it automatically each time restart
I customized a luminosity curve for my surface rt, just edit the registry keys.
Download extract and run the attached .reg file and confirm the insertion of the Keys, then reboot the system.
Alert to make a backup of the old keys if you want to restore the previous state.
This change is compatible with all windows 8 but I have tested only on the surface.
Adaptive brightness varies proportionally to the user manual brightness, I suggest to manually adjust the brightness bar to about 20%, if you place the bar at 0 the brightness will be minimal with no automatic adaptation.
Appreciated thanks
New version v2
New improved version.
Try it and tell me if it's okay.
In the zip you will find the normal version and one with more brightness in the dark
I suggest to manually adjust the brightness bar to about 25%
Someone asked me why I did this!
In my surface the luminosity curve does not satisfy me.
The display seemed to have only three levels of brightness, setting an average value (ie on the desk in the room in the morning) adaptivity did not fit values for low-light (night) and lots of light, that is to say the brightness in the dark was not a minimum making it annoying for the view and unnecessary consumption of battery, instead with shaded light levels brightness became easily maximum, with again a waste of battery.
This forced me to move often the brightness bar manually, but now with my calibration does not touch more because it adapts automatically to any light condition.
Also the adaptation of brightness occurred after 3 seconds by the change of light, whereas now changes instantly in 0,1 seconds (100ms).
Awesome, didn't know windows could be modded to do this! On a more related note, isn't the update interval a bit too high? 30x faster than normal seems a bit excessive and the battery drain would be very much more. If it is not too much trouble, could you perhaps make a version that updates every 1 second? This way people can download whichever one suits them best.
Thanks
version 1sec
It is not the refresh rate of the sensor, but the time between changes in display brightness because of lighting conditions.
This parameter does not affect the battery consumption.
However, to keep you happy I attach the version by 1 second.
Tell me if the curve satisfy you in different light conditions.
Thank you, going to try it out now. What do you mean it is the time between changes of brightness? Shouldn't the brightness only change when the sensor detects it? Or is this a filtering via an average for the time period method?
Going to try out both of them to see the differences. Will report back here.
Back!: guess I understand what you are saying, the timing is just the gap between the different brightness levels, not the sensor reading. Sorry for the confusion caused.
I found the 1 sec one to not have a wide enough brightness range, but your original 0.1 sec one works perfectly. Using it now!
Thanks again!
Yes, is the time to change between the different levels of brightness.
1 sec or 0.1 sec, the luminosity curve is the same.
Just for curiosity on what hardware you have tested?
I'm using it on a surface rt. But now I notice in the dark, I can't manually increase brightness anymore. I didn't backup my registry either, but its okay.
Edit: I can edit the brightness manually if I disable the auto brightness under settings
more light night
My intent was never to touch the brightness bar!
In this version, setting the bar more than about 25%, I raised slightly the minimum brightness
antys86 said:
Yes, is the time to change between the different levels of brightness.
1 sec or 0.1 sec, the luminosity curve is the same.
Just for curiosity on what hardware you have tested?
Click to expand...
Click to collapse
im using your original version on the Asus T100 and am loving it. Thanks!
I'm happy for you. However, work in progress for a new version.
does this work for laptops as well or just hand-help devices??
Nitro Lopez said:
does this work for laptops as well or just hand-help devices??
Click to expand...
Click to collapse
only if your laptop already has the adaptive brightness feature, check your display settings.
bountygiver said:
only if your laptop already has the adaptive brightness feature, check your display settings.
Click to expand...
Click to collapse
it does.. thanks for the quick reply..:good:
Nitro Lopez said:
does this work for laptops as well or just hand-help devices??
Click to expand...
Click to collapse
Works with all desktop, notebook, tablet in any version of windows 8. Obviously if you have a built-in light sensor recognized by windows
.Hey guys i been using this on the surfaxe pro 2 and i forgot to backup the defualt reg, i have no problems with it , i just wanted to compare wich i like the best, any chance any of you have the default reg backed uo.. thanks in advance
nalrodriguez said:
.Hey guys i been using this on the surfaxe pro 2 and i forgot to backup the defualt reg, i have no problems with it , i just wanted to compare wich i like the best, any chance any of you have the default reg backed uo.. thanks in advance
Click to expand...
Click to collapse
On surface 1 just delete the ALRPoints key for the default curve value, on surface 2 I think is the same.
nalrodriguez said:
.Hey guys i been using this on the surfaxe pro 2 and i forgot to backup the defualt reg, i have no problems with it , i just wanted to compare wich i like the best, any chance any of you have the default reg backed uo.. thanks in advance
Click to expand...
Click to collapse
Here you go
I made a backup before deploying it on my Surface 2 Pro..
Since I applied it just now, I will need to test it before giving comments on how good it works for me..
aaron.helin said:
Here you go
I made a backup before deploying it on my Surface 2 Pro..
Since I applied it just now, I will need to test it before giving comments on how good it works for me..
Click to expand...
Click to collapse
Also doing the restore of your backup, you must delete the key "ALRpoints".
This is the right backup
antys86 said:
Also doing the restore of your backup, you must delete the key "ALRpoints".
This is the right backup
Click to expand...
Click to collapse
ok, thanks for the finishing touch ?
antys86 said:
New version v2
New improved version.
Try it and tell me if it's okay.
In the zip you will find the normal version and one with more brightness in the dark
I suggest to manually adjust the brightness bar to about 25%
Click to expand...
Click to collapse
Thanks antys86, I'm using just your ALRPoints values (the morelightnight version) on my Dell Venue 8 Pro, and finally auto brightness is usable! Brightness needs to be set at 100% for me though.
xperia z1 compact brightness change itslef even when i have turned off the auto brightness. for example, the brightness becomes dimmer when the overall display colour is dark or black colour and it becomes brighter when the ovrall display colour is white or bright colour. i mean im able to notice there is a slight change in display brightness when im viewing photo, watching videos or surfing inernet. the brightness just change itself even when i turn off the auto brightness. so is there any solution or is there anyone has same curcamstances?
CABL
Sent from the app on my Z1C...
if you're rooted you can disable it by changing the build.prop ro.qualcomm.cabl=1 to ro.qualcomm.cabl=0
Riyal said:
if you're rooted you can disable it by changing the build.prop ro.qualcomm.cabl=1 to ro.qualcomm.cabl=0
Click to expand...
Click to collapse
I tried that, but the effect still appears. Any idea?
I've noticed the same issue, especially when browsing using Dolphin
Two ideas (which both may be totally wrong).
Does the phenomenon occur anywhere or only in certain apps? Some apps just ignore certain system settings and mess with the phone how they want or how is defined within the respective app settings (like switching to auto-brightness even when it is turned off in the android system settings). There seem to be some very basic points missing in the holy whatever-app-coding-styleguide for android: Options shall always be OPTIONAL and, in case of doubt (which is always), don't fcuk with stick to the system defaults ... but I'm running off the track here.
With auto-brightness turned-on, there may be some slight loop-back kind of behaviour in that a brighter screen also creates a brighter environment for the light sensor, thus, making the device turning up brightness even more. Things like that happen in control/measurement systems all the time (well, not really all the time, but they do happen). I've never seen it on my phone, though. So, this is a very very hypothetical hypothesis if I may say so.
Hi
I set ro.qualcomm.cabl to zero, and for me the irritating behavior went away., and unfortunately the irritating behavior is still there.
Thanks for the info!
//Gunnar
GunnarKarlsson said:
Hi
I set ro.qualcom.cabl to zero, and for me the irritating behavior went away.
Thanks for the info!
//Gunnar
Click to expand...
Click to collapse
Just one qustion:
I assume i have to be rooted to set this value, correct?
Thanks in advance
Zweistein82 said:
Just one qustion:
I assume i have to be rooted to set this value, correct?
Thanks in advance
Click to expand...
Click to collapse
Correct!
GunnarKarlsson said:
Hi
I set ro.qualcom.cabl to zero, and for me the irritating behavior went away.
Thanks for the info!
//Gunnar
Click to expand...
Click to collapse
That's strange because it's kernel related so changing the build.prop has no effect as already mentioned, which I can +1 to.
XperienceD said:
That's strange because it's kernel related so changing the build.prop has no effect as already mentioned, which I can +1 to.
Click to expand...
Click to collapse
I'll look again just to make sure, there might have been a placebo effect...
I noticed the behavior in the kindle app. When reading white text on a black background the screen got brighter when there was a white chapter start image.
//Gunnar
XperienceD said:
That's strange because it's kernel related so changing the build.prop has no effect as already mentioned, which I can +1 to.
Click to expand...
Click to collapse
You are right, just placebo on my part, when duplicating the error case I noticed it in, the CABL is still there.
I really really wanted it to work though, that must count for something... :-/
I attach the images I used for comparison...
//Gunnar
GunnarKarlsson said:
I really really wanted it to work though, that must count for something... :-/
Click to expand...
Click to collapse
If only it worked that way lol. It's in the kernel but thus far no dev seems to have looked in to it.
Sent from the app on my Z1C...
XperienceD said:
That's strange because it's kernel related so changing the build.prop has no effect as already mentioned, which I can +1 to.
Click to expand...
Click to collapse
From google I got cabl=content adaptive backlight and it is intended for changing backlight change.. But what is its advantage?? Is it battery saver or battery eater??
Sent from my Xperia Z1 Compact (D5503)
Was searching for a solution to this 'feature', especially on a sunny day it is very annoying. Could it be that is has something to do with the BRAVIA engine? Just a thought..
so?
So this problem is kernel-related issue?
Is there any kernel that have fixed this?
Any soulution? It is super annoying
I have same problem. Any solution?
CM11
Thank you
I know this is for z1c, but I just got my hands on a z1 c6903 and it seems to do this a lot and fade on dark colours. I read that on 4.2.2 there used to be an optimized backlight option and disabling it would stop the screen doing it but it was taken out from kitkat. Does anyone know if any custom kernels would fix it? It's just really annoying.
What about setting:
/sys/devices/mdss_dsi_panel/cabc
to "0"?
Hi,
i want to disable Screen Brightness Machine Learning on my phone. It must be like Android 8.1
I mean the only thing Screen care for the Brightness must be Light Sensor. Because ML thing works like ***.
Is there any build.prop code or something like that? How can i do that?
Thanks.
perfect_ said:
Hi,
i want to disable Screen Brightness Machine Learning on my phone. It must be like Android 8.1
I mean the only thing Screen care for the Brightness must be Light Sensor. Because ML thing works like ***.
Is there any build.prop code or something like that? How can i do that?
Thanks.
Click to expand...
Click to collapse
On Adaptive brightness option, turn it off.
RFD80M-75679 said:
On Adaptive brightness option, turn it off.
Click to expand...
Click to collapse
You misunderstood me.
perfect_ said:
Hi,
i want to disable Screen Brightness Machine Learning on my phone. It must be like Android 8.1
Thanks.
Click to expand...
Click to collapse
You can either use the new Screen Brightness or turn if off completely.
Have you tried training it for a few days by adjusting the brightness to your needs?
For me, it works perfectly after the training phase.
There is no way a normal user can do it, on a locked device. I am sure there are ways with root there are ways to fix this. This was my biggest issue for a week when I got Android 9, and now 10 (since in 10 whatever was learned in pie, at least for me, was lost). After a week of teaching it how I want things to do, it just does it at it should.
Howdy2 said:
You can either use the new Screen Brightness or turn if off completely.
Have you tried training it for a few days by adjusting the brightness to your needs?
For me, it works perfectly after the training phase.
Click to expand...
Click to collapse
The point is ML doesnt obey my commands. Thats why i want to disable it.
It learns ok. but when it finishes his learning phase i cant control the Brightness manually.
For example:
ML increases Brightness to %100
but thats too much for me for that moment
so i am trying change it to %50 and then
ML immediatly increases Brightness to %100
I cant control the Brightness after the Learning phase. Its just so dumb.
I just want back my old but gold Light Sensor.
TeoXSD said:
There is no way a normal user can do it, on a locked device. I am sure there are ways with root there are ways to fix this. This was my biggest issue for a week when I got Android 9, and now 10 (since in 10 whatever was learned in pie, at least for me, was lost). After a week of teaching it how I want things to do, it just does it at it should.
Click to expand...
Click to collapse
There must be a way.
perfect_ said:
I cant control the Brightness after the Learning phase. Its just so dumb.
I just want back my old but gold Light Sensor.
Click to expand...
Click to collapse
What. Just adjust the slider dude... been using it since it was new and I can adjust the slider under the quick settings any time.
What do you mean by learning phase? It tells you, that leaning phase is over and it's not adjustable anymore or what? :laugh:
dSERiES said:
What. Just adjust the slider dude... been using it since it was new and I can adjust the slider under the quick settings any time.
What do you mean by learning phase? It tells you, that leaning phase is over and it's not adjustable anymore or what? :laugh:
Click to expand...
Click to collapse
Just watch this.
Stock Android 9 - March 2020 v10.0.20
perfect_ said:
Just watch this.
Stock Android 9 - March 2020 v10.0.20
Click to expand...
Click to collapse
Indeed, you are right, the old fashion system pre-9 was much better, and much more reliable. You set a point on the slider and the auto-brightness only modified slightly in that area. Until the auto-brightness post-9 learns it's a chore, and after that... teaching it new things, it's again a chore.
The whole process is related to the Device Health Services subsystem where you can reset the whole learning to factory default. Maybe from there, you can have some success, but from what I've googled, there is no way to do that on stock locked. Maybe there are xposed, or magisk modules that could take care of that.
perfect_ said:
Just watch this.
Stock Android 9 - March 2020 v10.0.20
Click to expand...
Click to collapse
Wow.. I have never seen that. Been using 9 since it came out, with the latest sec. patch every time. I've adjusted the brightness many times, but I've never seen this happen.
Is it the same if you drag it instead of tapping a new location for the knob?
Also, I have the complete Digital Wellbeing bs disabled for a long time now, maybe that's why I've never seen this? Might have to do something with it.