Database Users

Do I have a bad xperia play?

Hey guys I'm having some concerns about my xperia play and so i want to know if i should be worried...
My screen flickers. ( Not on/off) but between shades. It's hard to explain but it drops between levels of brightness, but here's the deal i turn auto brightness off and it still flickers. Now i have noticed that the screen will dim ( flicker shades) with the orientation of the phone. Idk.
Also when I'm downloading the games thru xperia app it takes forever, i have high speed internet and I'm connected via WiFi but should i be expecting A 150MB download to take up to 45 minutes. Seems kinda slow to me.
Thanks in advance guys.

By Tue screen flickering if u mean the auto brightness increasing and decreasing immensely at times its normal since u cant turn off the auto brightness in our phone....
About the games..most of the games took 15-20 mins or less for me on an 8 mpbs connection
Sent from my R800i using XDA Premium App

Is there some kind of other brightness settings, i turned auto brightness off. And I'm still getting fluctuations in the shade of color.

if you have root you can disable this, but it is only temporary as somewhere in the system it re-enables this.
create a gscript with su ability
start script below
echo "0" > /sys/devices/i2c-0/0-0040/leds/lcd-backlight/als/enable
end script above
do not include the start and end parts
lasts around an hour, stops the flicker in bad light situations

magicriggs said:
Is there some kind of other brightness settings, i turned auto brightness off. And I'm still getting fluctuations in the shade of color.
Click to expand...
Click to collapse
It wont turn off even if you untick it, its an anoying bug, hopefully custom roms/kernels will solve this, dont worry about the downloads, even with high speed internet, keep in mind most of the developers are small companies and cant afford expensive hosting, even the gameloft servers are slow imo
Sent from my R800i using Tapatalk

magicriggs said:
Is there some kind of other brightness settings, i turned auto brightness off. And I'm still getting fluctuations in the shade of color.
Click to expand...
Click to collapse
You can NOT turn auto brightness off on the Play, it is hard wired right into the os, even if you used an app or widget saying it if off it is NOT! there is nothing you can do until SE fix it or some members here mod the os,
All the Play's do exactly what your describing, lots of topic here and elsewhere about it, everybody moans about it!
And regarding downloads, things from the market download fast for me, very fast, but other stuff from other places can be very slow, gameloft for example, takes hours! just depends on the servers your downloading from.

Hey thanks guys for the information. When i get to a desktop I'll hit the thanks button for all of you. I think my WiFi was acting up last night, i was playing some zombies and downloading torrents at the same time.lol. anyways thanks guys again.

FK1983 said:
You can NOT turn auto brightness off on the Play, it is hard wired right into the os, even if you used an app or widget saying it if off it is NOT! there is nothing you can do until SE fix it or some members here mod the os,
Click to expand...
Click to collapse
Actually you can disable it, its just not permanent please see my previous post

To be honest with you I like the auto brightness. I think is super responsive which other phones it seems like it takes forever to kick in which is why I normally shut it off

Varucell said:
To be honest with you I like the auto brightness. I think is super responsive which other phones it seems like it takes forever to kick in which is why I normally shut it off
Click to expand...
Click to collapse
I think it works great too, but it is nice to have this little gscript ready for times when the autobrightness goes wacky and the screen flickers

Screen flickering on my OP2

Out of nowhere, my phone's screen has tarted to flicker. The brightness flickers and is very distracting. I've already tried to flash the latest OxygenOS available, but it hasn't worked.
Thing is, it flickers in both OOS and TWRP but it doesn't when booting up and in the bootloader.
Is it a hardware issue or there's a software fix?

kami_sama said:
Out of nowhere, my phone's screen has tarted to flicker. The brightness flickers and is very distracting. I've already tried to flash the latest OxygenOS available, but it hasn't worked.
Thing is, it flickers in both OOS and TWRP but it doesn't when booting up and in the bootloader.
Is it a hardware issue or there's a software fix?
Click to expand...
Click to collapse
I've the same issue...out of the blue it started flickerin and is very annoying...half of the screen (dx side) is slightly more yellow...Have you found any fix for this?

afarnedi said:
I've the same issue...out of the blue it started flickerin and is very annoying...half of the screen (dx side) is slightly more yellow...Have you found any fix for this?
Click to expand...
Click to collapse
Nope, in the end I had to RMA the phone.
I had to go through the hops from support, but they were certain it was a hardware fault, I had it fixed at no cost.

There can be two things, one's Adaptive Brightness which usually does that, check if you have it enabled, disable it.
Second thing can be CABC (Content Adaptive Backlight Control) which works as opt's lcd throttler. It throttles, i.e. puts the brightness to a bare minimum when the temperature of the screen exceeds a particular value.
Now disabling this isn't very productive and/or practical. But if you want it disabled you can flash cm13 (a custom rom). On cm13 I've realised it works only on temperatures more than 65-70*.
I suggest you to keep your opt cool as long as you can.

Mine started flickering just after I made a change in Settings, and it was Turning OFF Adaptive Brightness

Mine just started flickering after I didn't change anything at all. Never used adaptive brightness in my life.

How can I prevent my J5 screen from dimming ???

Hi all,
I know this is an old question, but all my googling thru online forums led to nothing conclusive yet, other than non-working suggestions or using apps. But having to live with this dimming thing is bothering and exhausting !!! Simply said, there aren't any useful settings. Max display timeout in my phone is 10 minutes but, no matter which value I pick, after some seconds my display gets dimmed. And the developer option "stay awake" serves no purposes aswell... it just prevents the screen from going to sleep completely when under charge, but still dims after few seconds of inactivity. Is there any trick to finally turn this infamous auto-dimming off ?? IF I CAN, I would like to achieve this result WITHOUT using any apps, if possible. Oh my J5 is rooted of course, I can even tamper with system scripts or variables, if u instruct me on how to do.
Thanks !

ElenaXX said:
Hi all,
I know this is an old question, but all my googling thru online forums led to nothing conclusive yet, other than non-working suggestions or using apps. But having to live with this dimming thing is bothering and exhausting !!! Simply said, there aren't any useful settings. Max display timeout in my phone is 10 minutes but, no matter which value I pick, after some seconds my display gets dimmed. And the developer option "stay awake" serves no purposes aswell... it just prevents the screen from going to sleep completely when under charge, but still dims after few seconds of inactivity. Is there any trick to finally turn this infamous auto-dimming off ?? IF I CAN, I would like to achieve this result WITHOUT using any apps, if possible. Oh my J5 is rooted of course, I can even tamper with system scripts or variables, if u instruct me on how to do.
Thanks !
Click to expand...
Click to collapse
It sounds like a problem with the Rom. What rom u using ?
Sent from my Honor 8 using XDA Labs

ElenaXX said:
Hi all,
I know this is an old question, but all my googling thru online forums led to nothing conclusive yet, other than non-working suggestions or using apps. But having to live with this dimming thing is bothering and exhausting !!! Simply said, there aren't any useful settings. Max display timeout in my phone is 10 minutes but, no matter which value I pick, after some seconds my display gets dimmed. And the developer option "stay awake" serves no purposes aswell... it just prevents the screen from going to sleep completely when under charge, but still dims after few seconds of inactivity. Is there any trick to finally turn this infamous auto-dimming off ?? IF I CAN, I would like to achieve this result WITHOUT using any apps, if possible. Oh my J5 is rooted of course, I can even tamper with system scripts or variables, if u instruct me on how to do.
Thanks !
Click to expand...
Click to collapse
On my J5 screen never gets dimmed unless the display is turning off due the timeout.
There are apps which can dim the screen, including apps which "save battery". Maybe you have a kind of this app which does this?
Your screen turn off after 10 minutes or after the screen gets dimmed?

It seems a very common and complained issue between Android users from what I read here and there, so more a wanted feature by the original developers than a rom bug... not sure if u are referring to Android version, it is 5.1.1 Kernel id 3.10.49-787809.
No of course I haven't any energy saver apps installed or such things.
All system energy saving options are disabled already.
My phone dims the screen after abt 10 seconds, no matter how long I set the timeout
Oh it suxxxxxx... !!!!

ElenaXX said:
It seems a very common and complained issue between Android users from what I read here and there, so more a wanted feature by the original developers than a rom bug... not sure if u are referring to Android version, it is 5.1.1 Kernel id 3.10.49-787809.
No of course I haven't any energy saver apps installed or such things.
All system energy saving options are disabled already.
My phone dims the screen after abt 10 seconds, no matter how long I set the timeout
Oh it suxxxxxx... !!!!
Click to expand...
Click to collapse
Go in download mode and tell me if ur screen is still diming

I tried... it is NOT dimming in download mode... but it's obvious isn't it ? Only some minimal kernel portion is ran there, not the whole OS with all its power saving features etc...

[Obsolete] Yoga Tab 3 Plus no more Flickering/CABC [ROOT]

Update
Lenovo fixed the issue in the latest update with my initial method which was switching off the CABC in the backlight controller which gives us a brightness boost. So obviously it is not dangerous.
Old Message:
So having achieved root, I was looking into the easiest of the issues. Some call it flickering. The "feature" is called CABC and is supposed to save battery. But obviously this comes at a cost of the display constantly adapting the brightness to the content which can cause flickering depending on what you have on the screen.
With root this can be switched off. Alternatively a new kernel could solve this without root. In both cases an unlocked bootloader is still required.
Instructions:
Use a build.prop editor form the Playstore
Edit the variable "ro.qualcomm.cabl=2" and set it to 0. CAUTION this modifies the system partition. If you want to receive OTAs in the future you will have to flash the system partition with an original image or backup.
Reboot
Technical details:
There are three places where CABC can be switched off:
In the build.prop
In the device tree blob in the boot image/kernel. Specifically the DSI switch on commands in the LCD panel description contain the enabling of CABC
In the LCD backlight driver /sys/devices/soc.0/78b6000.i2c/i2c-2/2-002c -> could be dangerous because it increases brightness and the voltages in the backlight controller

matshias said:
So having achieved root, I was looking into the easiest of the issues. Some call it flickering. The "feature" is called CABC and is supposed to save battery. But obviously this comes at a cost of the display constantly adapting the brightness to the content which can cause flickering depending on what you have on the screen.
With root this can be switched off. Alternatively a new kernel could solve this without root. In both cases an unlocked bootloader is still required.
I attached an Automate flow which disables CABC and guess what we get a brightness bump of about 20%. Now the maximum brightness of the display is even a bit brighter than my old Yoga Tab 2 and should be on par with the 3 pro
Make sure that Automate runs on system startup and has root enabled.
Technical details:
There are two places where CABC can be switched off:
In the device tree blob in the boot image/kernel. Specifically the DSI switch on commands in the LCD panel description contain the enabling of CABC
In the LCD backlight driver /sys/devices/soc.0/78b6000.i2c/i2c-2/2-002c
It turns out that if you disable the latter CABC is off even without modifying the former. Of course this requires ROOT to change. This could also be done in the kernel, but would need either a recompile or modifying the init.rd
Click to expand...
Click to collapse
Thanks Now only audio sync issues left for me and tablet will be perfect.

Have you compared the battery performance with and without CABC disabled?

Ashili said:
Have you compared the battery performance with and without CABC disabled?
Click to expand...
Click to collapse
No, these battery life tests take a long time, which I don't have Time is better spent looking into the other issues. It shouldn't be too much of a difference.

matshias said:
No, these battery life tests take a long time, which I don't have Time is better spent looking into the other issues. It shouldn't be too much of a difference.
Click to expand...
Click to collapse
Yap, I think so. The battery life is long enough. Thank you.

I would think as long as you manually adjust brightness to match your content, you'd get similar results.

I modified the thread to use a less invasive method. I am having issues with my tablet. I am not sure it was caused by this mod but just to be safe I recommend everyone not to use it any longer.

what kind of problem?

chuwq1038 said:
what kind of problem?
Click to expand...
Click to collapse
Everything works (also the display) but the battery drains and the back of the tablet gets warm even when the tablet is switched off. Could be completely unrelated to the mod, but who knows.

With latest official update I have a battery drain issue too. 15% down overnight...

Auto brightness training

I often have to be very persistent in training the phone for brightness in the auto mode. Especially in the evening, when the brightness slider is to the left of the middle. I set the desired brightness, but it is not fixed. You have to do it 10 times or more, and after a minute the brightness again lives its own life. Has anyone come across this on customs ROMs? Everything was great on stock.

Bookworm Yevgen said:
I often have to be very persistent in training the phone for brightness in the auto mode. Especially in the evening, when the brightness slider is to the left of the middle. I set the desired brightness, but it is not fixed. You have to do it 10 times or more, and after a minute the brightness again lives its own life. Has anyone come across this on customs ROMs? Everything was great on stock.
Click to expand...
Click to collapse
Turn off auto brightness Its Simple
(I dont understood your issue propperly...)

ai.Sanaul said:
Turn off auto brightness Its Simple
(I dont understood your issue propperly...)
Click to expand...
Click to collapse
Maybe you don't know auto-brightness can be trained due to users preferences. At least it works on stock.
Or don't you use auto-brightness at all?
I am accustomed to auto-brightness at any time of a day and I like to use it. I don't want to change it mannualy after each changes of circumstances.
However on the custom ROM the process isn't so easy. I just have doubts if it will be successful at all.

Bookworm Yevgen said:
Maybe you don't know auto-brightness can be trained due to users preferences. At least it works on stock.
Or don't you use auto-brightness at all?
I am accustomed to auto-brightness at any time of a day and I like to use it. I don't want to change it mannualy after each changes of circumstances.
However on the custom ROM the process isn't so easy. I just have doubts if it will be successful at all.
Click to expand...
Click to collapse
i,m on Samsung J2 Pro 2018(i use most) with Super Amoled screen and my phone dosent supports auto brightness but i've seen in Redmi 9 Power (second phone i have) that it works according to light around you and cant be trained at all... i think you been talking about another concept, sorry... Tell me about it more if you can so i can learen about it.

ai.Sanaul said:
i,m on Samsung J2 Pro 2018(i use most) with Super Amoled screen and my phone dosent supports auto brightness but i've seen in Redmi 9 Power (second phone i have) that it works according to light around you and cant be trained at all... i think you been talking about another concept, sorry... Tell me about it more if you can so i can learen about it.
Click to expand...
Click to collapse
There is nothing special to say more here. Just in the auto-brightness mode, the user sets the slider to the desired level at any time. This is repeated a certain number of times and after that the phone remembers the new settings and, depending on this, the new auto-brightness algorithm works. The learning process for brightness is endless. You can adjust it anytime to your preference. In any case, it worked fine on stock and the phone memorized new settings very quickly.

Bookworm Yevgen said:
There is nothing special to say more here. Just in the auto-brightness mode, the user sets the slider to the desired level at any time. This is repeated a certain number of times and after that the phone remembers the new settings and, depending on this, the new auto-brightness algorithm works. The learning process for brightness is endless. You can adjust it anytime to your preference. In any case, it worked fine on stock and the phone memorized new settings very quickly.
Click to expand...
Click to collapse
oh! its a cool thing. Thanks

I tried A11, A12, A13 ROMs, and after that I'm on A10 stock again. I think that's the best way for me to keep my nerve sells. Now the autobrigness doesn't even need additional training.