Black trail issue - OnePlus 7 Pro Questions & Answers

I'm facing this issue on my one plus 7 pro nebula.
Please help.
https://forums.oneplus.com/threads/black-trails-on-the-screen.517242/

I'm not seeing this at all. What are your display settings and have you changed them at all? Refresh rate? Quad? Is it only trailing darks?
Thanks

Can you compare it to another amoled smartphone?

This is normal. It happens to any AMOLED device with low brightness

bdaviesweb said:
I'm not seeing this at all. What are your display settings and have you changed them at all? Refresh rate? Quad? Is it only trailing darks?
Thanks
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No changes. I checked with other one plus pro device even that device is facing this issue. "ITS VISIBLE IN LOW BRIGHTNESS"

paysen said:
Can you compare it to another amoled smartphone?
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Click to collapse
Yes, I could see the same in other amoled.

Was the same with my pixel 2 xl with brightness turned down low. I'm assuming this is normal? (i know it shouldn't be)

Ahh ok got ya. Well glad you found some consistency.

It IS normal on OLED...

Related

[Q] Capacitive Button Brightness on 11S

Hello,
I just received my Oneplus One, directly updated it to 44S with OTA updates...
Unlocked bootloader, flashed TWRP and SuperSU.
My issue is the capacitive buttons are very difficult to see in normal day, in house...
You can only see it at night...
Is there a way to fix this ?
Thank you
I have the same problem... It is not very bright
I think by design, it's just not very bright when used outdoors or in light area. At least on my oneplus that's the way I saw it as. I just kind of remembered the location and disabled the brightness of the buttons.
Sent from my Nexus 6 using Tapatalk
No, mine is very low compared to pictures seen on the web...
It is not just by design.
Orphee said:
No, mine is very low compared to pictures seen on the web...
It is not just by design.
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Click to collapse
Are you sure they are set to their maximum brightness?
GTCC said:
Are you sure they are set to their maximum brightness?
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Click to collapse
Yes, I'm sure, I tried to set value myself with adb, max is 255, and it is very low...
Edit : Just took a picture with a LG G3 :
and, the LG see the button better than real, with the light of the room, it is quite hard to see buttons...
It's a known issue and hardware at fault. Use the onscreen buttons instead.

Am i the only one who has display backlight flickering with my Zenfone 6?

Hi,
i got my Zenfone 6 today, and i really like it, but there is one thing that probably makes me return it...
The display is flickering when it‘s set to really low brightness, i think its the backlight.
I‘m not sure if it's broken or not. So, am i the only one with a flickering display?
Thank you
07713 said:
Hi,
i got my Zenfone 6 today, and i really like it, but there is one thing that probably makes me return it...
The display is flickering when it‘s set to really low brightness, i think its the backlight.
I‘m not sure if it's broken or not. So, am i the only one with a flickering display?
Thank you
Click to expand...
Click to collapse
I had the same situation yesterday, it was on low brightness too.
But only for a few seconds, for now, everything seems fine, even in low brightness.
With adaptive brightness set on or off?
Do you have the latest firmware version WW-16.1210.1904.133?
It doesn‘t matterif adaptive brightness is on or off, it does it as soon as the display lowers its brightness to the 1st 1/4 of the brightness bar...
Ok. Do you have the latest firmware version WW-16.1210.1904.133?
_jis_ said:
Ok. Do you have the latest firmware version WW-16.1210.1904.133?
Click to expand...
Click to collapse
Hi, i have the same problem. Received the phone a week ago and trying to find a solution. I am on the last firmware, tried the dev option about overlay, hard reset and still the same. Going to send it back to Asus for a refund...
I wonder if this is software or hardware related. As of now i can't use it at night with low brightness.
It will probably be a problem for a particular phone, I would recommend that you replace it with a new one.
https://swedroid.se/forum/threads/snabba-fragor-snabba-svar-zenfone-6.165775/page-38#post-2443073
Thanks for the feedback. Called Asus this morning to replace it hopefully.
My Zenfone 6 does the same. If I set the adaptive brightness on the low brightness flickering disappears. I think it's a software related problem because others Zenfone have the same behaviour.
Tried it. No matter the settings it flickers. I found a video that match the problem, weird no one noticed : youtu.be/DN1La8AbZsI
Check at 1.16 min, on the right side, it flickers like that, when the luminosity is low. This is what i see on my screen.
Same here. White backgrounds flicker when brightness set to low. Tried disabling HW overlay, but it didn't help. Phone on the latest firmware WW_16.1210.1904.133.
Anybody letting the techs at Asus know about these problems? I would like to hear about a fix before I buy anything.
I am in touch with Asus France, i have to send back the phone for an exchange as they told me it MAY be a hardware problem.
I linked the thread to them if it can help.
Every zenfone I have had (2 and 3) have had this issue.
Skhio said:
I am in touch with Asus France, i have to send back the phone for an exchange as they told me it MAY be a hardware problem.
I linked the thread to them if it can help.
Click to expand...
Click to collapse
I think it's a software issue...if you let the brightness working in auto mode the problem disappears.
It is set in auto mode on my device and still the same. With or without doesn't help sadly.
Hmmm is this international version? The U.S is coming next month. Hopefully this get fix before I'm buying it.
Sent from my SM-G970U1 using Tapatalk
Wulff73 said:
I think it's a software issue...if you let the brightness working in auto mode the problem disappears.
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Click to collapse
Mine is flickering when brightness is set to low (about 1/4-th of the brightness slider and down) no matter auto or no auto.
Funny how we here in the US complain that so many phones are released in the EU, or India, or China long before they ever appear here....but in reality it could be that we benefit from this practice so that some of these issues can be resolved by others before we have to deal with them.
jaseman said:
Funny how we here in the US complain that so many phones are released in the EU, or India, or China long before they ever appear here....but in reality it could be that we benefit from this practice so that some of these issues can be resolved by others before we have to deal with them.
Click to expand...
Click to collapse
I hope that when this phone is released in your country, this issue will be solved definitively via software update. The way I see it, this problem isn't a huge problem, fortunately. Actually the screen flickering occours only if the brightness is set to a very low level (e.g. <20%) but, with this setting, the backlight is too dim as well for use even in a dark room (obviously for my taste). Since I use adaptive brightness with default settings, the minimum value the screen brightness reaches is 34% so I never get the problem....

abought screen brightness

hey guys!
my display set to adaptive,and the auto brightness is off,and the level is full bright
but somtimes the screen verybright and good and sometimes after 1 or two minutes ,its become less brightness by itself ,then sudenlly bright again
is this normal ? can we fix this ?
Make sure your screen time out time isn't set to something like 15 seconds
Sent from my SM-N986U using Tapatalk
AeroSatan said:
Make sure your screen time out time isn't set to something like 15 seconds
Sent from my SM-N986U using Tapatalk
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no its set to 1 min but thx.
but i know everybody got this iisue its like the aouto brightness set to on but its off
bubu23 said:
no its set to 1 min but thx.
but i know everybody got this iisue its like the aouto brightness set to on but its off
Click to expand...
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So you're saying your auto brightness is off and you have it manually cranked all the way up but the issue is that it randomly dims and then gets bright again, on and off constantly?
Sent from my SM-N986U using Tapatalk
AeroSatan said:
So you're saying your auto brightness is off and you have it manually cranked all the way up but the issue is that it randomly dims and then gets bright again, on and off constantly?
Sent from my SM-N986U using Tapatalk
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Click to collapse
Sounds like a display problem.
Sent from my SM-N986U1 using Tapatalk
racingmatt1 said:
Sounds like a display problem.
Sent from my SM-N986U1 using Tapatalk
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Click to collapse
I concur
Sent from my SM-N986U using Tapatalk
AeroSatan said:
So you're saying your auto brightness is off and you have it manually cranked all the way up but the issue is that it randomly dims and then gets bright again, on and off constantly?
Sent from my SM-N986U using Tapatalk
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yes but not all the time after few min
i have in familly 3 note 20 ultra and all the same ,so cant be display problem. i know many people say that thing ,and some tell them its like this because thers kind of protection of the screen so it wont be max bright all the time so it will not burn the screen ,i just wanted to know if thers a way to leave it on max for all time
bubu23 said:
yes but not all the time after few min
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It's difficult for me to determine whether it's something intentionally done by the software to limit the screen brightness or a defect. If it's the latter and you can still exchange or at least attempt a warranty swap through a carrier, it maybe something to look worthwhile to look at.
Sent from my SM-N986U using Tapatalk
If you're saying that the Note 20 Ultra isn't as bright as previous Samsung phones I would concur!
I have an S10+ and Note 20 Ultra, and I don't know what brightness "problem" is people talking about. They're almost identical. You know that you can adjust brightness to your taste, even in auto, right? By default is dimmer because of energy saving stuff, but you can move the slider up...
I have a note 10+ I still daily, definitely dimmer than my n20u, but that sounds like software trying to adjust for some reason.
Samsung is buggy, will always be buggy I feel like.
coilbio said:
I have a note 10+ I still daily, definitely dimmer than my n20u, but that sounds like software trying to adjust for some reason.
Samsung is buggy, will always be buggy I feel like.
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look its same like iphone
if you use iphone about 5 min its become hote thenn the screen dim
i know its in note 20 ultra as well if you use the phone surf lets say facebook 5 min its become little hot and dim the screen (not much ,little bit) at least with the exinos chip
DavidMarmon said:
It is due to the auto brightness.
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no man auto brightness is off
try it out! if you in a dark place not alot of light even if the screen on full brightness it still will dim itself abit
but when you go no outside but to room with much more lite the screen will be more strong
its like the auto brightness even when off still doing somthing to keep the screen
It may be to protect your eyes or something but mine does this as well.
Auto Brightness - Off
Manually set brightness to highest point
Then if you go from a dim room to sunlight the screen will brighten up even with auto brightness off so you can see it under sunlight.
Anyone manage to get this issue resolved? When the phone get hot, the screen dim to the extend u cannot see clearly under the bright hot sun. Using Samsung superb chip. Really lots of issue with note 20 ultra. Samsung taking customer for granted now!
angka8 said:
Anyone manage to get this issue resolved? When the phone get hot, the screen dim to the extend u cannot see clearly under the bright hot sun. Using Samsung superb chip. Really lots of issue with note 20 ultra. Samsung taking customer for granted now!
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Click to collapse
When the screen is too bright it heats up then dims? Sounds like well thought out safety process implemented by samsung for people like you. ?
Limeybastard said:
When the screen is too bright it heats up then dims? Sounds like well thought out safety process implemented by samsung for people like you. ?
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That is a big problem. I am just using Chrome and not playing games. Why would it heat up so freaking fast!
angka8 said:
That is a big problem. I am just using Chrome and not playing games. Why would it heat up so freaking fast!
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Click to collapse
Chrome? I stopped using that resources hungry POS browser years ago. I advice you do the same.
Limeybastard said:
Chrome? I stopped using that resources hungry POS browser years ago. I advice you do the same.
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Click to collapse
Works well on all my phones, but our individual experience with chrome doesn't add much to the fact that Samsung's software might be limiting the user experience, which it is, more so than other manufacturers.
After all, we should be the ones to dictate what we want to use for web browser or any other app and not have to change it because samsung has buggy software managing it's hardware. Other manufacturers have it down, imy currently loving my xperia mark 2 and the way it's optimized.

Question How to fix pwm on this device?

It has pwm even on full brightness. I tried the pwmfree app https://forum.xda-developers.com/t/app-amoled-pwmfree.3898070/ but it still hasn't fixed the problem.
Doesn't it bother you? My eyes hurt while looking at the screen.
I've read a bit about it on the link you've provided. How did you know if our phones have it? I am quite interested in this!
You use the camera from another smartphone or another device to look at the screen of the a52. And you change the shutter speed or exposure in the camera until you will see the bars pulsating on the screen of the a52.
Oh well then it seems like most of my phones since 2015 or so have had that, and I've never really suffered from headaches from it, not that I've noticed.
You can't notice it consciously, but some people, including me, are affected by it. The thing is this could easily fixed by samsung, but they wont do it. Other companies have removed the pwm effects on their amoled screens.
dragon.. said:
You can't notice it consciously, but some people, including me, are affected by it. The thing is this could easily fixed by samsung, but they wont do it. Other companies have removed the pwm effects on their amoled screens.
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Click to collapse
Damn that sucks, especially when you know its an easy fix from the OEM to implement.
One thing though, from what I've read off the PWM Free apk page, it uses a transparent black overlay and increases its opacity as you decrease brightness. If that's the case then you could use Twilight to acheive the same goal, right? Just max out the brightness and turn off auto brightness, then use Twilight as your brightness adjuster, turning the bluelight option down. Could that work?
The weird thing about the a52 is that it has pwm even on max brightness, so probably twilight wont work as well. I will try it later though. Same problem on the premium samsung range: https://eu.community.samsung.com/t5...been-addressed-on-the-s21-series/td-p/2641628
dragon.. said:
The weird thing about the a52 is that it has pwm even on max brightness, so probably twilight wont work as well. I will try it later though. Same problem on the premium samsung range: https://eu.community.samsung.com/t5...been-addressed-on-the-s21-series/td-p/2641628
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Click to collapse
Yeah, it still flickers even at full brightness. Maybe setting it at 60hz could fix that? I'll try it later to see if that could work. My previous phone doesn't have that issue at full brightness, so I'll gauge the difference based on the difference between the two.
I use mine only on 60hz and it still flickers.
Yeah, I've tested it and there is a difference between 60hz and 90hz, but the flicker is still present.
Edit: I also re did the test on my old device, a J7 Pro, and it stops to flicker altogether at peak brightness. So yeah, this phone has very prominent PWM.
ashraftheboss said:
Edit: I also re did the test on my old device, a J7 Pro, and it stops to flicker altogether at peak brightness. So yeah, this phone has very prominent PWM.
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Click to collapse
Yeah, that's why samsung should do something about it. Because we still have flickering at max brightness, we can't use other software to correct the issue.
dragon.. said:
The weird thing about the a52 is that it has pwm even on max brightness, ...
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Click to collapse
I suspect you didn't actually have the brightness set to maximum. This cannot be set manually, but is only set when the ambient brightness sensor (front camera) is illuminated by a very bright light - the sun, or a very bright flashlight. The brightness of the display is then visibly increased above the normal maximum.
Well, if the max brightness can't be controlled then it's not relevant. In this review https://www.notebookcheck.net/Samsu...ntly-more-affordable-without-5G.539956.0.html they tested the pwm on the display with an osciloscope and it shows that when you manually set the display at 100% brightness it still has pwm. This is one of the worst pwm out there, and a shame for samsung to do something like this.
is a shame unless samsung make a change in the firmaware the a52 is a pain in the eyes i need to sell mine now i cant play any video game unless i want a eyestrain
Pwm sensitive here.
Samsung A71 was OK pwm 240 hz.
Samsung 21fe was OK pwm 240 hz.
Samsung s6 edge was OK pwm 240hz
Mi 11 ultra not OK pwm 480hz. Not OK even with anti-flickering or pwm_free / oledsaver app. Mi 11 ultra has Samsung display E4.
I really don't understand. Maybe is the highs and Bottoms in the amplitudes.
Works well on my galaxy s8
ashraftheboss said:
I've read a bit about it on the link you've provided. How did you know if our phones have it? I am quite interested in this!
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Click to collapse
Hi. I realised the negative effects last year after a year of using amoled display on redmi note 10. It gave me headaches and also my eye power changed from 0.5 to 1.5 for both the eyes in just less than a year. I do 3 hours of use a day. That's how I learnt about PWM and the headache it gives to people.
edit - REDMI NOTE 10 died a week ago and I am searching for a phone which doesn't have PWM issue in it. For past 7 days I am using LCD screen and my eyes feels a lot better.

Question Video Flickering at 60fps

Anyone else notice this? I did find a small thread on Samsung.com so not sure if its a hardware issue or if all of them have it. - https://us.community.samsung.com/t5...t-flickering-on-video-recordings/td-p/2209967
Seems to only do it at 60fps options 1080p60 and 4K60.
Except its just not flash light related or LED light related. It'll do it outside as well Highly annoying!
I tested it and don't have this issue.
Monipeev said:
I tested it and don't have this issue.
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Click to collapse
Its not a 100% all the time issue. Its under certain lighting specific lighting conditons. Usually lower light for me
for low light always use auto fps. it was tested to show its actually better and brighter and clearer
chillsen said:
for low light always use auto fps. it was tested to show its actually better and brighter and clearer
Click to expand...
Click to collapse
Last year on the 12 Pro Max Auto FPS ruined a video that couldnt be remade. It for some reason switched despite being in the bright outside, on top of that it recorded 24fps and made the clip choppy. Not saying samsung would do this but its not worth the risk keeping that enabled.
But the weird flickering has happened with it being bright outside as well
hyelton said:
Last year on the 12 Pro Max Auto FPS ruined a video that couldnt be remade. It for some reason switched despite being in the bright outside, on top of that it recorded 24fps and made the clip choppy. Not saying samsung would do this but its not worth the risk keeping that enabled.
But the weird flickering has happened with it being bright outside as well
Click to expand...
Click to collapse
something doesn't seem to be syncing. i would say the flickering is due to hardware more than software. but yea i only switch on auto fps in low light and its been impressive. i forget where but there's a video of the s22u side by side and auto fps was much more preferable since it could slow down frames meaning it would be brighter with less artificial noise reduction
Looks like a PWM frequency issue depending on the brightness of the (flash LED).
Literally just made a thread about this. The exact same problem. Glad to see i'm not the only one, because I wasn't able to find any other person experiencing this. You can see my example videos here:
Is it normal that my camera flickers on videos when the lighting level changes ? Does it happen on you too ?
It's not happening because of the lamps above, it happens on natural lighting too. It happens when camera focuses to a new area where the lighting level is different. Is this a defect, or is it the same for everyone ? Here are 2 example videos...
forum.xda-developers.com
Hope it's not a hardware problem and they fix it with an update
I'm so happy to say that May update I just received (S908EXXU2AVDA) fixed this problem. Can you check if it's fixed for you too ? @hyelton I tried every specific condition that it flickered before and it doesn't flicker anymore, made me happy that it wasn't a hardware problem and they were aware of the issue.
wholelottared said:
I'm so happy to say that May update I just received (S908EXXU2AVDA) fixed this problem. Can you check if it's fixed for you too ? @hyelton I tried every specific condition that it flickered before and it doesn't flicker anymore, made me happy that it wasn't a hardware problem and they were aware of the issue.
Click to expand...
Click to collapse
The US model doesn't have the update. I have the U/U1 model which we just got an update not long ago. So I'm sure it'll he awhile.
Glad it was fixed in an update!
hyelton said:
The US model doesn't have the update. I have the U/U1 model which we just got an update not long ago. So I'm sure it'll he awhile.
Glad it was fixed in an update!
Click to expand...
Click to collapse
Alright, tell me when you receive the update and check please, you're the only one I can ask this since nobody else was realizing about this problem lol. Hope it gets fixed for you too!
wholelottared said:
Alright, tell me when you receive the update and check please, you're the only one I can ask this since nobody else was realizing about this problem lol. Hope it gets fixed for you too!
Click to expand...
Click to collapse
I'll post here if it ever gets fixed. Yeah I'm sure it's just people don't notice it.
Example
I can hand my phone to my mom and set it to 60hz. And low power mode. She will think it's crazy fast and no lag. When it most certainly is not LOL
She does now find her old S10 slow after using a S21 FE the past few weeks.

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