DC dimming - OnePlus 7 Questions & Answers

Greetings all
I want to know if dc dimming actually helps.
I have problems with oled screens giving me massive headaches. Please if you dont have issues or dont believe that pwm effects people Dont Comment.
I am not new to using phones at all, but as Ive gotten older my eyes have gotten more sensitive and technology has gotten so much better, Ive been very limited in my choices when it comes to new phones. I had the 1plus6t and absolutely Loved it, unfortunately it was the worst for me as far as causing blazing headaches and actually feeling sick. I am very interested in this phone so if you have experience with pwm and with dc dimming, let me know. Thanks!

Tdeljr said:
Greetings all
I want to know if dc dimming actually helps.
...
Click to expand...
Click to collapse
I am sensitive to screen flicker too. I couldn't use amoled screens before oneplus 7.
Dc dimming definitely works and it helps (at least for me). It doesn't eliminate PWM flicker completely but makes it much more tolerable.

It doesn't give me headaches, but the OnePlus 7 screen hurts my eyes like crazy. DC dimming doesn't help.
However it does appear to show less flickers when taken with my camera. It still shows a lot of flicker at the lowest brightness settings.

Related

Adjusting the colors of the display?

Is there a way to adjust the colors of the Xoom's screen? I'm pretty disappointed at how photos look white washed on the Xoom as compared to other tablets. The Galaxy 10.1's screen seem over saturated but their Touch Wiz update provided them a way to choose a setting which was more natural. I was thinking if they can do it through the software then maybe there is a way to better the colors of the Xoom's display.
I have xoom too, I agree with you, display is dull. How can we increase amount of brightness?
john85D said:
Is there a way to adjust the colors of the Xoom's screen? I'm pretty disappointed at how photos look white washed on the Xoom as compared to other tablets. The Galaxy 10.1's screen seem over saturated but their Touch Wiz update provided them a way to choose a setting which was more natural. I was thinking if they can do it through the software then maybe there is a way to better the colors of the Xoom's display.
Click to expand...
Click to collapse
Some of you guys got the not so wonderful screen...I'm sorry. These's an app called Color Filter Settings in the Market that might help. Also Screen Filter might be of some use, but it doesn't increase brightness.
Thanks okantomi.
I've always wondered why someone doesn't make an app that allows us to modified the colors like gamma, Brightness, Contrast, saturation, etc. It could make any device look great.. maybe allow presets and stuff.
okantomi said:
Some of you guys got the not so wonderful screen...I'm sorry. These's an app called Color Filter Settings in the Market that might help. Also Screen Filter might be of some use, but it doesn't increase brightness.
Click to expand...
Click to collapse
Hi there okantomi !
May I ask who's the manufacturer for your display and if any infos about the specs for that ? Part number will help a lot.
I'm afraid not only "some" of us but actually "many" of us have this crappy washed screen from AIO which drives me nuts for how bad it is.
Since I'm not the only one with these problems and AFAIK Motorola is aware of this I really don't get it why they don't even bother to release a firmware fix or at least create an App to let us playing with colors and contrast adjustments to increase a little bit the appearance on our screens.
Thanks for any replies.
Regards
Marcos68 said:
Hi there okantomi !
May I ask who's the manufacturer for your display and if any infos about the specs for that ? Part number will help a lot.
I'm afraid not only "some" of us but actually "many" of us have this crappy washed screen from AIO which drives me nuts for how bad it is.
Since I'm not the only one with these problems and AFAIK Motorola is aware of this I really don't get it why they don't even bother to release a firmware fix or at least create an App to let us playing with colors and contrast adjustments to increase a little bit the appearance on our screens.
Thanks for any replies.
Regards
Click to expand...
Click to collapse
I only recently checked and found that I have the Sharp screen, luckily without any bleed. My screen is great, but I'm not sure it's as easy as Sharp vs. AUO, because a lot of people swear by the AUO screen, like our moderator. I agree that there should be a fix available, because it's the one thing that's most consistently complained about by people with low contrast screens.
Thank you so much for your reply. I'm pretty sure that SHARP screens are much better than AUO ones based on their experience and history with this kind of stuff. I'm aware about those bleeding problems about some of them however I would preffer one with some bleeding instead this one with such a poor visibility and so washed. If you tilt the screen just slightly (few degrees) everything goes washed and color saturation drops a lot. What can I say..it's a real nightmare to watch this.
I like the overall appearance and features for this tablet, this is the reason I'm still looking for any solution to improve somehow the quality of viewing.
If any chance to get the part number from your unit I will appreciate your effort a lot.
Thanks again.
PS...about others with AUO screens and no major complaints...it looks like some of them are upgraded versions already (the latest XOOMS), so maybe that's the reason for not so many complains with them
Marcos68 said:
Thank you so much for your reply. I'm pretty sure that SHARP screens are much better than AUO ones based on their experience and history with this kind of stuff. I'm aware about those bleeding problems about some of them however I would preffer one with some bleeding instead this one with such a poor visibility and so washed. If you tilt the screen just slightly (few degrees) everything goes washed and color saturation drops a lot. What can I say..it's a real nightmare to watch this.
I like the overall appearance and features for this tablet, this is the reason I'm still looking for any solution to improve somehow the quality of viewing.
If any chance to get the part number from your unit I will appreciate your effort a lot.
Thanks again.
PS...about others with AUO screens and no major complaints...it looks like some of them are upgraded versions already (the latest XOOMS), so maybe that's the reason for not so many complains with them
Click to expand...
Click to collapse
I don't know the part number. Have you tried contacting Motorola to see if they could upgrade your screen or at least give you some information /options?
You might want to try that Screen Filter app. I think it could help you, especially with your viewing angles.

Improving viewing angles for Locked Bootloaders

Hey guys!
Good news for those ones who have locked bootloaders! Install this app: Screen Filter
https://play.google.com/store/apps/details?id=com.haxor
It works with White Balance and can improve screen viewing angles! No need custom ROM, specific Kernel or Root!
Try it!
Thumbs up for the developers of Haxor!
Just remember that the app works like as gamma control of DoomKernel, which also tends to darken the display.. Just see my other thread: http://forum.xda-developers.com/show....php?t=2710684
Cheers!
This is just wrong -.-
It's a screen dimmer just because when you dim your screen you can see some stuff better at an angle doesn't mean that you improved viewing angels
Doesn't work.
ak800i said:
This is just wrong -.-
It's a screen dimmer just because when you dim your screen you can see some stuff better at an angle doesn't mean that you improved viewing angels
Doesn't work.
Click to expand...
Click to collapse
So, you say that "you can see some stuff better at an angle", doesn't that literally mean "improved viewing angles", which essential IS seeing things better at an angle? :laugh:
Yes I think dimming the screen is not such a great solution, but better than nothing. Technically, it does improve viewing angles to an extent.
tomascus said:
So, you say that "you can see some stuff better at an angle", doesn't that literally mean "improved viewing angles", which essential IS seeing things better at an angle? :laugh:
Yes I think dimming the screen is not such a great solution, but better than nothing. Technically, it does improve viewing angles to an extent.
Click to expand...
Click to collapse
The brightness level can be adjusted in the application, so that does not become so dark, you have tested?
For those who have the locked bootloader is a breakthrough yes! I invite people to test.
Cheers!
Not really a breakthough, I used this app about a year ago. Its nothing amazing...It just dims the screen, ideal if you use your phone as alarm clock in a dock and you cant dim the screen enough with the native brightness control. But that's it
And unsure why you think this is a breakthough for locked bootloaders. The app is compatible with android 1.6+ and has never needed an unlocked bootloader to work
This application works like this that was shown in the video of Anirudh Srinivas:
https://www.youtube.com/watch?v=1PqJYw8ci6c
For me, it works better because it works on all display, including in the softkey area.
Cheers
tomascus said:
So, you say that "you can see some stuff better at an angle", doesn't that literally mean "improved viewing angles", which essential IS seeing things better at an angle? :laugh:
Yes I think dimming the screen is not such a great solution, but better than nothing. Technically, it does improve viewing angles to an extent.
Click to expand...
Click to collapse
What im trying to say is
Dimmed Angle is better when Dimmed
But Bright Angle is better than Dimmed Angle
The intent was to help people who do not want to unlock the bootloader. It is quite obvious that the app works for both Locked or unlocked bootloaders, needless to say. Let the people test.
Not everyone knows the application or have tried something like that, and not everyone here is a developers or advanced users.
I tested the app, liked and saw some improvement in the display.
Let's be more friendly here and less kicking in the colleagues ass ok?
Sorry, not having a go..just wondering why this was meant ot be a breakthough
Of course people can test themselves
Just remember that the app works like as gamma control of DoomKernel, which also tends to darken the display.. Just see my other thread: http://forum.xda-developers.com/showthread.php?t=2710684
Cheers!
gregbradley said:
Sorry, not having a go..just wondering why this was meant ot be a breakthough
Of course people can test themselves
Click to expand...
Click to collapse
Agreed....
It allows you to lower the brightness more than normal, WOW what a breakthrough.....
The viewing angles issue is a hardware one, sorry but lowering the brightness is not solving anything. The issue is using crappy tft technology. That being said it is still miles ahead of the original xperia z, the display on that was so bad I got rid of it after about a week.

AMOLED screen burn-in

I'm using Waze app every single day for about 1.5 hour.
in the past when i had galaxy S4, after 2 month of daily use, i noticed on white pages i still see all the static banners and buttons of waze.
baisically, using Waze in daily basis, burn-in my screen in the static area of the app like the up and down banners, speed meter etc...
Can it happen also in my new galaxy s8+? what to you think? did the amoled technology haven't changed a lot in the past 4 or 5 years?
There is a new feature in Waze called battery saver, it dims the screen when you are over a certain speed and a certain distance from the next instruction, that might help with it.
Though to be honest I use it for about the same amount of time everyday and don't even think about any burn in, its definitely not something that I've noticed happening on my phone so far
Shaady said:
its definitely not something that I've noticed happening on my phone so far
Click to expand...
Click to collapse
So far.... the phone is pretty new so we can tell right now. hope it will never happen but my S4 experience keeps me worried about this phenomenon.
Shaady said:
There is a new feature in Waze called battery saver, it dims the screen when you are over a certain speed and a certain distance from the next instruction, that might help with it.
Though to be honest I use it for about the same amount of time everyday and don't even think about any burn in, its definitely not something that I've noticed happening on my phone so far
Click to expand...
Click to collapse
I looked in Waze setting and could not find this option. Where is this option?
Shaady said:
There is a new feature in Waze called battery saver, it dims the screen when you are over a certain speed and a certain distance from the next instruction, that might help with it.
Though to be honest I use it for about the same amount of time everyday and don't even think about any burn in, its definitely not something that I've noticed happening on my phone so far
Click to expand...
Click to collapse
i can't find this option in waze.... which app version installed on your phone? which country?
I had that problem with my s7 edge. I got it changed on warranty. I'm too scared to use waze on my s8+.
Sent from my SM-G955F using XDA-Developers Legacy app
mouzam said:
I had that problem with my s7 edge. I got it changed on warranty. I'm too scared to use waze on my s8+.
Click to expand...
Click to collapse
How much time did you use your s7 before the burn-in happen?
How much time you used waze each day?
Flame Red said:
I looked in Waze setting and could not find this option. Where is this option?
Click to expand...
Click to collapse
Today i received an update to waze from play store and the function was added :good:
Definitely can still happen on the s8+. I'd recommend not having your screen excessively bright while static images are on screen if you can help it. It's a pain but this is just an unfortunate trade-off with these beautiful screens.
xeathpk said:
Definitely can still happen on the s8+. I'd recommend not having your screen excessively bright while static images are on screen if you can help it. It's a pain but this is just an unfortunate trade-off with these beautiful screens.
Click to expand...
Click to collapse
It's not a trade-off. It can happen with virtually ANY type of display. LCD, LED, OLED, etc. No mobile phone display is immune.
pieces of cake said:
It's not a trade-off. It can happen with virtually ANY type of display. LCD, LED, OLED, etc. No mobile phone display is immune.
Click to expand...
Click to collapse
I'm sorry if you dont like it but its the truth. I absolutely love the Samsung phones so I'm not against the phone. I've had the Note, S3, S4, S5, S6E, S7E and now the S8+.
I'm the first person to correct somebody wrongly bashing these phones but in this case it is what it is mate. Its well documented and accepted as fact that screen burn in on Amoled is more prevalent than some other display technologies. You need to be a little bit more mindful with Amoled if you want to keep the screen looking nice with heavy use.
xeathpk said:
I'm sorry if you dont like it but its the truth. I absolutely love the Samsung phones so I'm not against the phone. I've had the Note, S3, S4, S5, S6E, S7E and now the S8+.
I'm the first person to correct somebody wrongly bashing these phones but in this case it is what it is mate. Its well documented and accepted as fact that screen burn in on Amoled is more prevalent than some other display technologies. You need to be a little bit more mindful with Amoled if you want to keep the screen looking nice.
Click to expand...
Click to collapse
Based on your response, it's apparent that you didn't quite grasp mine. Anyway, cheers!
pieces of cake said:
Based on your response, it's apparent that you didn't quite grasp mine. Anyway, cheers!
Click to expand...
Click to collapse
Based on your first response you obviously didn't grasp mine at all whatsoever. I wasn't comparing Amoled directly to any other screen technology but the fact remains that the prevelance of screen burn in is generally higher than other screen types in general. That's not just conjecture on my part.
Its accepted fact. Also I'd appreciate it if you dropped the childish, rude and flippant attitude towards me. I was simply responding to your straw man argument.
xeathpk said:
Based on your first response you obviously didn't grasp mine at all whatsoever. I wasn't comparing Amoled directly to any other screen technology but the fact remains that the prevelance of screen burn in is generally higher than other screen types in general. That's not just conjecture on my part.
Its accepted fact. Also I'd appreciate it if you dropped the childish, rude and flippant attitude towards me. I was simply responding to your straw man argument.
Click to expand...
Click to collapse
Yeah, ok then. Enjoy!
XkobiX said:
How much time did you use your s7 before the burn-in happen?
How much time you used waze each day?
Click to expand...
Click to collapse
There was one week where I used it excessively. And I kept the screen full bright. When I saw the screen burn in with the arrow of waze navigation. I started looking up on the Internet to solve the burn in issue somehow. That's when I found out that it's a common issue on amoled screens apparently. And the only way to solve it was to send it back to Samsung for a repair or replacement.
Sent from my SM-G955F using XDA-Developers Legacy app
mouzam said:
There was one week where I used it excessively. And I kept the screen full bright. When I saw the screen burn in with the arrow of waze navigation. I started looking up on the Internet to solve the burn in issue somehow. That's when I found out that it's a common issue on amoled screens apparently. And the only way to solve it was to send it back to Samsung for a repair or replacement.
Click to expand...
Click to collapse
Yeah unfortunately its one of those things that you just have to be mindful of, even when you're not on full brightness.
I was pretty lucky with most of my galaxy phones especially considering how heavily I used them, although my S7E was an exception.
I still have the phone and after just 13 months you can clearly see discoloration on the screen and admittedly very feint burn in on UI elements ie. the status bar. The screen discoloration is pretty bad and perfectly matches the YouTube app, where the video is playing up top and the static white comment section below put uneven "wear" on my screen. I'm now trying to make a habit to watch longer YouTube videos in fullscreen to avoid a similar result.
mouzam said:
There was one week where I used it excessively. And I kept the screen full bright. When I saw the screen burn in with the arrow of waze navigation. I started looking up on the Internet to solve the burn in issue somehow. That's when I found out that it's a common issue on amoled screens apparently. And the only way to solve it was to send it back to Samsung for a repair or replacement.
Click to expand...
Click to collapse
So they replaced it for you? If it is so common on amoled display, they still replace or repair burned in screens?
XkobiX said:
So they replaced it for you? If it is so common on amoled display, they still replace or repair burned in screens?
Click to expand...
Click to collapse
Yes they did. I rang samsung and told them about the issue. They got the phone picked up from my house. I was expecting them to probably just replace the screen but to my shock they sent me a brand new sealed s7 edge.
Sent from my SM-G955F using XDA-Developers Legacy app
Amoled is notorious for burn-ins. I would avoid using any app for prolonged periods of time.
pieces of cake said:
It's not a trade-off. It can happen with virtually ANY type of display. LCD, LED, OLED, etc. No mobile phone display is immune.
Click to expand...
Click to collapse
I work for a carrier and never in my 14 years have I seen a LCD screen burn in I have however seen multiple AMOLED panels with burn in especially demo phones (yes on all day rolling content but so are the LCD models) this is a risk with organic displays to his point is true it is a trade off whichever way you sugercoat it

[ALERT] This Phone's display has PWM flickering

Yes, pixel 3xl is having pwm flickering if the brightness is less than 80%.
Just in case if you don't know what this does: This gives serious daily headaches and eye strain & with no doubt will effect your eyes and neural brain things.
I am not aware of this before buying the phone, so just want to let others know about this before buying it.
Reported to support but they are asking to wait for monthly software update. But i believe this is related to hardware.
EDIT: To see the flickering you need to record the flickering phone with another phone. Then you could see lines running on the display. These lines are the result of PWM(Cheap - cost-cutting technology to control the device brightness) flickering. Flickering is much clearly exposed if recorded in slow motion.
And this will not affect every user. Only to certain people who are sensitive with their eye and brain nervous system.
EDIT: The august Update obviously did not remove the flickering, as it is related to hardware, not software.
The senior customer person requested to give the mobile to service and they replied back after 10 days that it is "as intended" i.e it has no issues and returning the phone.
So, if in case you are sensitive to eyes and neural activities and planning to buy any OLED or Pixel phones, just want to help you with this information. Suggest checking the phone in physical outlets by recording the display before buying the device.
Huh...
This doesn’t affect everyone just those that are sensitive to it
Sent from my iPhone using Tapatalk
I've never had issues with this in the almost 1 year I've owned my phone.
Sent from my Pixel 3 XL
All phones have pwm. Never had an issue with pwm on the 3xl. Want a phone with bad pwm? Get a OnePlus. It's atrocious on that.
BoboBrazil said:
All phones have pwm. Never had an issue with pwm on the 3xl. Want a phone with bad own? Get a OnePlus. It's atrocious on that.
Click to expand...
Click to collapse
Agreed. Just got a Pixel 3xl after 12 months with a OnePlus 6 and the the OnePlus 7. Ok phones but just feel unfinished and that flicker annoyed me.
I keep the brightness down around 60% or so. Never notice any pwm...
Pixel 3 XL, haven't crashed it, YET
Eudeferrer said:
I've never had issues with this in the almost 1 year I've owned my phone.
Sent from my Pixel 3 XL
Click to expand...
Click to collapse
BoboBrazil said:
All phones have pwm. Never had an issue with pwm on the 3xl. Want a phone with bad pwm? Get a OnePlus. It's atrocious on that.
Click to expand...
Click to collapse
FernBch said:
I keep the brightness down around 60% or so. Never notice any pwm...
Pixel 3 XL, haven't crashed it, YET
Click to expand...
Click to collapse
To see the flickering you need to record the flickering phone with another phone. Then you could see lines running on the display. These lines are the result of PWM(Cheap - cost-cutting technology to control the device brightness) flickering. Flickering is much clearly exposed if recorded in slow motion.
And this will not affect every user. Only to certain people who are sensitive with their eye and brain nervous system.
harigavara said:
To see the flickering you need to record the flickering phone with another phone. Then you could see lines running on the display. These lines are the result of PWM(Cheap - cost-cutting technology to control the device brightness) flickering. Flickering is much clearly exposed if recorded in slow motion.
And this will not affect every user. Only to certain people who are sensitive with their eye and brain nervous system.
Click to expand...
Click to collapse
It sounds like you really have to go out of your way to be bothered by this.
Here is some nice graphs: https://forum.xda-developers.com/galaxy-s8+/development/amoled-pwm-s8-t3716663 and https://forum.xda-developers.com/s7-edge/development/amoled-pwm-s7-edge-t3517739
Optimize OLED PMW with the "OLED Saver" app
harigavara said:
Yes, pixel 3xl is having pwm flickering if the brightness is less than 80%.
Click to expand...
Click to collapse
Did you try this app ("OLED Saver bei MrJS)? https://play.google.com/store/search?q=org.js.oledsaver&c=apps
I hope that the next Pixel/Pixel A will include the "DC dimming" feature.

Unusual eye strain on Mix 2S?

I have used a number of other phones, typically I'm a moderate phone user, looking at phone about 1-2 hours per day.
Since I bought the Mi Mix 2s, I often feel eye fatigue and light headache after looking at the phone. I tried reading mode and automatic brightness on and off. But it seems not helping much. If I reduce the time looking at the phone, it helps.
This never happened to other phones I used in the past.
Not sure if it's just me or a common thing for Mix 2S?
gadget1999 said:
I have used a number of other phones, typically I'm a moderate phone user, looking at phone about 1-2 hours per day.
Since I bought the Mi Mix 2s, I often feel eye fatigue and light headache after looking at the phone. I tried reading mode and automatic brightness on and off. But it seems not helping much. If I reduce the time looking at the phone, it helps.
This never happened to other phones I used in the past.
Not sure if it's just me or a common thing for Mix 2S?
Click to expand...
Click to collapse
I've been using this phone since June (~3-6 hours/day) and never had any problems with eye fatigue or headache... Did you try filtering blue light?
spring_roll said:
I've been using this phone since June (~3-6 hours/day) and never had any problems with eye fatigue or headache... Did you try filtering blue light?
Click to expand...
Click to collapse
Thanks for confirming. Yes, I tried reading mode on with warm color, but seems it didn't help much. I guess could be my eyes are sensitive to something on the Mix 2s screen (like PWM or sth.)
gadget1999 said:
Thanks for confirming. Yes, I tried reading mode on with warm color, but seems it didn't help much. I guess could be my eyes are sensitive to something on the Mix 2s screen (like PWM or sth.)
Click to expand...
Click to collapse
I don't think PWM is the problem. Notebookcheck.com tested this phone and they wrote: "Some PWM flickering occurs in the IPS display, but only if the brightness is reduced to 36% or lower. At 1168 Hz, the PWM frequency is very high, so that even a sensitive person should not feel any impact from this."
I had the same issue with mix 2s, it was the black version and the screen was a little bit yellowish. It was very unpleasant to look at. Now having another one, I don t seem to be having the same eye strain. The new one is the white variant.
Al3xxxinho said:
I had the same issue with mix 2s, it was the black version and the screen was a little bit yellowish. It was very unpleasant to look at. Now having another one, I don t seem to be having the same eye strain. The new one is the white variant.
Click to expand...
Click to collapse
Mine is a black version too. Maybe screens are manufactured by different vendors for different batches/variants.
gadget1999 said:
Mine is a black version too. Maybe screens are manufactured by different vendors for different batches/variants.
Click to expand...
Click to collapse
I do get eye strain when using it at low brightness especially at night, I feel like my eyes have to focus really hard when the brightness is low. But that happens only with the mix2s, on samsung phones for example, I have no issues at all.
Try to keep the brightness at values higher than 30%, for me it helps immediately.
malimukk said:
I do get eye strain when using it at low brightness especially at night, I feel like my eyes have to focus really hard when the brightness is low. But that happens only with the mix2s, on samsung phones for example, I have no issues at all.
Try to keep the brightness at values higher than 30%, for me it helps immediately.
Click to expand...
Click to collapse
That's probably related to PWM. I also found that turn off automatic brightness could help a bit.

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