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"?
Related
Or does anyone know how to turn off this annoying misfeature?
Optimized Backlight is the name sony gave to the screen content dependent backlight setting. If your screen has a big proportion of white or other bright colors, the backlight will be brighter as well, if the content is mostly dark, then the backlight will get darker.
This is independent from the adaptive backlight setting and can not be turned off.
I did try CM11 to get rid of it, but CM11 also has this feature.
Try - hard boot using vol up + power button. Z1 owners reported it works.
thermalboyz said:
Try - hard boot using vol up + power button. Z1 owners reported it works.
Click to expand...
Click to collapse
Nope.
But, I searched a bit, and this feature is called Content Adaptive BackLight or CABL.
So, for the custom ROM builders out there, what about the build.prop setting ro.qualcomm.cabl ? In the sony ROM it is set to 1. Perhaps setting it to 0 would work?
I don't have a solution, but I agree that this is an annoying anti-feature that adds nothing to the user experience or image quality, just gets irritating fast.
Small consolation: it doesn't seem as aggressive on KitKat ...
ghtop said:
I don't have a solution, but I agree that this is an annoying anti-feature that adds nothing to the user experience or image quality, just gets irritating fast.
Small consolation: it doesn't seem as aggressive on KitKat ...
Click to expand...
Click to collapse
I dug a bit further and it seems that at least in some versions or on some devices with cm there actually is an advanced display settings dialog, where cabc, as they call it, can be disabled, but it wasn't there on my cm11.
ARBEIT ANGST KONSUMTERROR
Any solution to this yet? I'm guessing root is the only way? I find it annoying, but at least it's not as bad as the Z1.
toiletsss said:
Any solution to this yet? I'm guessing root is the only way? I find it annoying, but at least it's not as bad as the Z1.
Click to expand...
Click to collapse
i have root but still no way to turn it off do you know how to switch it off?
Sent from my C6902 using Tapatalk
Ame123 said:
i have root but still no way to turn it off do you know how to switch it off?
Sent from my C6902 using Tapatalk
Click to expand...
Click to collapse
This can not be turned off even if rooted.
I have same problem Its really anti feature!
Dislike this feature
mcghun said:
Dislike this feature
Click to expand...
Click to collapse
HARD REBOOT is the right way to fix this problem for a while.
Wrong thread, meant to post in c6903 sorry.
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.
Hey. (sorry for my poor English)
I think about buying an LG G3, but the brightness is a big disadvantage for me.
I want to know if is it possible to increase the brightness of this phone. (maybe LG is working on an update which includes fix for this issue?)
OhadSh said:
Hey. (sorry for my poor English)
I think about buying an LG G3, but the brightness is a big disadvantage for me.
I want to know if is it possible to increase the brightness of this phone. (maybe LG is working on an update which includes fix for this issue?)
Click to expand...
Click to collapse
Yes, once your devise is rooted, you can change the brightness in the build properties with Rom Toolbox. But, be warned that if you are not familiar with this you should avoid changing build properties. If you don't know what you are doing you can really screw up your phone.
grneyez said:
Yes, once your devise is rooted, you can change the brightness in the build properties with Rom Toolbox. But, be warned that if you are not familiar with this you should avoid changing build properties. If you don't know what you are doing you can really screw up your phone.
Click to expand...
Click to collapse
Is there any chance that LG's working on this issue?
OhadSh said:
Is there any chance that LG's working on this issue?
Click to expand...
Click to collapse
Probably not, as the brightness for most people is fine. You may be in a group of select few who think the brightness is to low. Make sure your auto brightness is off and turn it all the way up. You will however compromise battery with the brightness turned all the way up.
Sent from my LG-D850 using Tapatalk
OhadSh said:
Hey. (sorry for my poor English)
I think about buying an LG G3, but the brightness is a big disadvantage for me.
I want to know if is it possible to increase the brightness of this phone. (maybe LG is working on an update which includes fix for this issue?)
Click to expand...
Click to collapse
I happen to think in most situations the auto-brightness selects too low a value, however in general (manual control) it is more than sufficiently bright, even in direct beach sun.
Do you guys notice that auto brightness still On even when its turn off, i mean when certain images on screen change, the brightness change a bit depending on how dark or light the image is... Has nothing to do with light around you.
Try browsing a vibrant picture then change to dark picture..
Anyone get this issue on your T2 ultra ??
How to fixed that ??
rassiuz said:
do you guys notice that auto brightness still on even when its turn off, i mean when certain images on screen change, the brightness change a bit depending on how dark or light the image is... Has nothing to do with light around you.
Try browsing a vibrant picture then change to dark picture..
Anyone get this issue on your t2 ultra ??
How to fixed that ??
Click to expand...
Click to collapse
not on t2 ultra DUAL
tested many times
chauhanjayc said:
not on t2 ultra DUAL
tested many times
Click to expand...
Click to collapse
im on T2 ultra dual
and im use indian firmware 4.4.3
is that any setting to disable this issue ? do you have an advice ?
screen brightness change according to how dark or light picture is...
rassiuz said:
im on T2 ultra dual
and im use indian firmware 4.4.3
is that any setting to disable this issue ? do you have an advice ?
screen brightness change according to how dark or light picture is...
Click to expand...
Click to collapse
i dont know any fix but have you changed any thing in your phone
installed any conflicting brightness or some sort of keep device wake up kind of apps
last thing you can do is take a back up of your current states
then do a fresh install wipe every thing
that can solve your issue
coz from where i can see settings for sensor is messed up
chauhanjayc said:
i dont know any fix but have you changed any thing in your phone
installed any conflicting brightness or some sort of keep device wake up kind of apps
last thing you can do is take a back up of your current states
then do a fresh install wipe every thing
that can solve your issue
coz from where i can see settings for sensor is messed up
Click to expand...
Click to collapse
No, i don't do anything...
will try it, thanks for the advice
rassiuz said:
No, i don't do anything...
will try it, thanks for the advice
Click to expand...
Click to collapse
ur well come
if that doesn't solve your problem meet sony centre for repair i think ur warranty is still on
chauhanjayc said:
ur well come
if that doesn't solve your problem meet sony centre for repair i think ur warranty is still on
Click to expand...
Click to collapse
One more question, what text or file on system that control auto brightness or screen brightness ? Buildprop or something like that...
Can you give me that file from your phone ?
Or just tell me how to find on my system, and what phrase/word/command
rassiuz said:
One more question, what text or file on system that control auto brightness or screen brightness ? Buildprop or something like that...
Can you give me that file from your phone ?
Or just tell me how to find on my system, and what phrase/word/command
Click to expand...
Click to collapse
well there must be some libs for that but i cant find it for me its finding small stone in sea
but this may help you
http://forum.xda-developers.com/showpost.php?p=44642140&postcount=1
more over i dont understand why you dont visit sony store
I'm using xperia z ultra and having the same issue, had this problem on 4.4 and 4.3 but never on 4.2. I guess its a 'feature' called Content Adaptive Backlight (google it) and can't be disabled.
chauhanjayc said:
well there must be some libs for that but i cant find it for me its finding small stone in sea
but this may help you
http://forum.xda-developers.com/showpost.php?p=44642140&postcount=1
more over i dont understand why you dont visit sony store
Click to expand...
Click to collapse
this is why i dont visit sony store...
v
v
ademanyem said:
I'm using xperia z ultra and having the same issue, had this problem on 4.4 and 4.3 but never on 4.2. I guess its a 'feature' called Content Adaptive Backlight (google it) and can't be disabled.
Click to expand...
Click to collapse
oh, i see... if like that, only SONY can disable that feature called Content Adaptive Backlight
thanks bro :good:
One of the more pleasant surprises I got when I bought this phone was how dark the screen could get for night tile viewing. With Night Mode and the lowest brightness, I could browse my phone first thing in the morning without dying.
Now, on Nougat, Night Mode just adds a yellowish tint - probably reducing blue light or whatever - and brightness doesn't seem to go as low now. Kinda blinded this morning...
Is there some way of fixing this?
1.
2.
3.
And many more..
I probably should've specified I wasn't looking for a separate app for this purpose. I know that much!
Just wondering if I can get the built in function to be sensible again.
Rizaria said:
I probably should've specified I wasn't looking for a separate app for this purpose. I know that much!
Just wondering if I can get the built in function to be sensible again.
Click to expand...
Click to collapse
Surely.
No you can't.
Well,
Currently looking into downgrading to Marshmallow then. Newer doesn't always equal better, sigh~
MOD EDIT
Rizaria said:
MOD EDIT
Click to expand...
Click to collapse
This is an international FORUM. People are from different cutural backgrounds, ethnicity, religion, beliefes......
What might be acceptable, might not be for others.
Please be careful in your words
Thanks
No idea what I said, but okay.