Question do we have a rom which removes PWM flicker issue and switch to DC dimming. - Redmi Note 11 (spes/spesn)

do we have a rom which removes PWM flicker issue and switch to DC dimming?

xdauserherewithnote4 said:
do we have a rom which removes PWM flicker issue and switch to DC dimming.
Click to expand...
Click to collapse
I have seen this "question" of yours under 3 different topics -- but you have always ended it with a dot -- doesn't your keyboard have a question mark?
Whenever a sentence ends with a dot, it means it's a statement -- not a question.

Oifan said:
I have seen this "question" of yours under 3 different topics -- but you have always ended it with a dot -- doesn't your keyboard have a question mark?
Whenever a sentence ends with a dot, it means it's a statement -- not a question.
Click to expand...
Click to collapse
OK. its ok.

Related

[Q] Correct terminology for G-Note screen issue

Dear forum members.
I know what you may be thinking this is yet another thread on Galaxy Note screen problems, I couldn’t bring myself to post in the existing thread only to have it be drowned under the 1,300 of old posts http://forum.xda-developers.com/showthread.php?t=1336187.
I’m not looking to fix this problem myself I simply need the correct terminology to describe this problem to a Samsung engineer for what will be the second return under warranty.
Display:
E.g. in portrait mode very fine small red pixels peppered to the top of the screen under the notification bar spreading out thinly to the bottom right, most visible with a gray or white background apparent with screen set on lowest light setting and or when in a low light environment.
I appreciate that this may seem a petty concern why not simply make the screen brighter but given my eyes have a sensitivity to bright lights this is not an option.
My phone has apparently undertaken a complete diagnosis and service or at least that’s what the letter from Regenersis service centre said.
In addition to my main concern above I list the bellow only for completeness of this report as they may be connected with the above screen issue:
1. Strange nuanced behaviour of the automatic brightness which turns my phone into a mobile disco.
2. Banding on low resolution images.
3.Backgrounds especially white changes shades for example.: it could take a pink-ish shade or a green-ish shade or a light blue one.
My sincere thanks for taking the time to read
This post might be of assistance to you. I'm not sure. I haven't seen these problems.
http://forum.xda-developers.com/showthread.php?t=1430847
Thanks missed that one have now bookmarked that page in regards to banding on low resolution images.
But unfortunately I don't believe there's any direct relation to my odd little red dots in terms or phrase that could be adapted for my purposes or at least none that I can see, but I'll need to give it a thorough read through to be certain.
alfabet0 said:
Thanks missed that one have now bookmarked that page in regards to banding on low resolution images.
But unfortunately I don't believe there's any direct relation to my odd little red dots in terms or phrase that could be adapted for my purposes that I can see.
Click to expand...
Click to collapse
Yeah, probably not. But, if you contact Samsung, I'm sure you can just describe "little red dots" and where they are and then Samsung will test it out and see.
Rose tinted glass
I've already tried to contact them although the Samsung customer service people try their best to be helpful, nor Samsung or it's employs can officially acknowledge this or any of the faults in my thread to do so would probably mean they'd have to do a mass recall of a lot of Galaxy Note's sent out.
The only thing they can do is recommend I make a service request which is what I'm doing for the second time.
The problem is the fault is so innocuous and almost invisible under normal bright working conditions that the engineer's can't see it, But once you've notice this fault it can be quite distracting it's almost as if half the screen has rose tinted glass
I guess it wouldn't hurt to pester them again I'll try and be more direct this time.
Well from my point view
the screen technology is led " light emitting diod"
this technology uses RGB colors , red blue green.
In every pixle there is a mixed of RGB .
Some of the pixels get damaged ; REASONS:
phone fall down.
Mnufactoring malfnctioning process in the screen.
expect anything that would hurt you screen
and if your device is still under warrenty . you are good to go
i hoped i helped
Sent from my GT-N7000 using XDA
alfabet0 said:
I appreciate that this may seem a petty concern why not simply make the screen brighter but given my eyes have a sensitivity to bright lights this is not an option.
Click to expand...
Click to collapse
Exactly my problem.

Half-responding screen

Left part of my screen doesn't respond to clicks! (Screenshot, issue area is on red)
Issue persists between roms (Tried GDX and stock).
A few minutes ago I realized that left side of my screen has some bright, so I compared right side (Photo) with left side (Photo).
No, that white bright is not wallpaper reflection. It's white on color wallpapers too and even on completely black wallpapers.
Any idea?
First thing that comes to my head - did you drop anything on it?
Secondly how long has this issue persisted?
sgt. meow said:
First thing that comes to my head - did you drop anything on it?
Secondly how long has this issue persisted?
Click to expand...
Click to collapse
1.- if you mean hit: all hits it had (almost none) were from about 15cm high.. nothing to worry about....
if you mean liquid: no
2.- about a year, because I thought it was a rom issue and I never used any other....
it has 1 year and 6or7 months
thanks for replying! i thought nobody was going to haha!
It's definitely a faulty screen or digitizer. If the issue persists across all ROMs and kernels (you don't have to check each one of them), then you should get your screen or digitizer (can't really put my finger on which is causing this) replaced.
F***.. So, there is no doubt its a hardware issue? Then i'll have to live with it -.-

display banding vertical lines

Hey guys,
This thread is not about the camera taking photos with banding lines, instead about the actual display.
Does anyone have vertical banding lines most notorious when displaying a full grey screen in low brightness.
I've read the verge review and seems to have some banding as well, anyone as well? Thinking about replacing it for a third time.
happyhour13 said:
Hey guys,
This thread is not about the camera taking photos with banding lines, instead about the actual display.
Does anyone have vertical banding lines most notorious when displaying a full grey screen in low brightness.
I've read the verge review and seems to have some banding as well, anyone as well? Thinking about replacing it for a third time.
Click to expand...
Click to collapse
Yes, I rarely get this issue. I captured a screen shot one day just in case, not sure how well it shows up, but look in the middle lower portion of the screen. Almost like a clock hand pointing at 6 o'clock.
JustROLLIN said:
Yes, I rarely get this issue. I captured a screen shot one day just in case, not sure how well it shows up, but look in the middle lower portion of the screen. Almost like a clock hand pointing at 6 o'clock.
Click to expand...
Click to collapse
Nevermind, it does not really show up in that pic. Sorry. But yes, I experiencing this issue. Mainly when I am in the settings menu, I think it based on the colors in there. I do not ever see it on my home screen or apps...at least my eye cannot perceive it.
JustROLLIN said:
Nevermind, it does not really show up in that pic. Sorry. But yes, I experiencing this issue. Mainly when I am in the settings menu, I think it based on the colors in there. I do not ever see it on my home screen or apps...at least my eye cannot perceive it.
Click to expand...
Click to collapse
You can't take a screenshot to see the problem. Its a hardware issue therefore you can only use an externeal photo of the screen. Check on grey full color screen. I think I will not replace it, I may risk on another issue..
happyhour13 said:
You can't take a screenshot to see the problem. Its a hardware issue therefore you can only use an externeal photo of the screen. Check on grey full color screen. I think I will not replace it, I may risk on another issue..
Click to expand...
Click to collapse
Yeah, I had not planned on replacing mine either. I so infrequently see it, and even when I do, it really does not impact anything. I was not aware it was a hardware issue, seems there could be a bug fix for problem then.
JustROLLIN said:
Yeah, I had not planned on replacing mine either. I so infrequently see it, and even when I do, it really does not impact anything. I was not aware it was a hardware issue, seems there could be a bug fix for problem then.
Click to expand...
Click to collapse
I've been investigating and the problems seems to be just like the galaxy nexus screen.
http://forum.xda-developers.com/galaxy-nexus/general/galaxy-nexus-grainy-vertical-banding-t1391509
basically like the people of that threads
happyhour13 said:
I've been investigating and the problems seems to be just like the galaxy nexus screen.
http://forum.xda-developers.com/galaxy-nexus/general/galaxy-nexus-grainy-vertical-banding-t1391509
basically like the people of that threads
Click to expand...
Click to collapse
Thanks for the link.
Its funny cause the band shows up in the screen shot on my phone, but probably because the conditions are right, not cause its actually in the pic.
Vertical lines are something you should replace your phone for. Horizontal lines like in the screenshot is just the banding of the colors and happens on every single stock android phone because it's apart of the software
kdog350 said:
Vertical lines are something you should replace your phone for. Horizontal lines like in the screenshot is just the banding of the colors and happens on every single stock android phone because it's apart of the software
Click to expand...
Click to collapse
Could u check through a full grey background whether ur greyd are fully consistente? I mean there no faint lines whatsoever. Perhaps ur phone is the same as mine and u have not realized it given that it seems to be fairly normal with amoled displays
I was just about to post about this very issue. I created a quick image to show everyone what the issue is. The lines are not as drastic as I made them look, but it should give you the idea of what it looks like on the screen.
undergrad said:
I was just about to post about this very issue. I created a quick image to show everyone what the issue is. The lines are not as drastic as I made them look, but it should give you the idea of what it looks like on the screen.
Click to expand...
Click to collapse
No. That is not the issue we are speaking about. The issue we are referring to is VERTICAL and only appears on greyish/black screens, like the settings screen. The horizontal lines are normal for this phone.
JustROLLIN said:
No. That is not the issue we are speaking about. The issue we are referring to is VERTICAL and only appears on greyish/black screens, like the settings screen. The horizontal lines are normal for this phone.
Click to expand...
Click to collapse
Precisely. You can't really use self screenshots to see this problem I'm talking about. Its about the amoled itself having these vertical banding lines(canvas-like strokes). Open Facebook and tap the search button and tap on the search bar without actually writing any name. Tap down the keyboard. For me the deep blue background has the most prominent banding lines for me. I have one week to think whether I should replace it. If everybody actually have these lines and NOT a solid color on full greys or deep blue I won't replace it.
PS. TheVerge moto x review says that it also have some banding lines on grays. I'd be great if you guys could check ur screens like I just explained. Hope I explain it well
Damn amoled!
Someone with the problem should post a sample pic/screen shot so others can download it and attempt to see the problem.
Just download a color test app that makes ur whole screen of a determined color. Put it on grey and check whether ur whole Grey screen doesn't have any vertical line banding. In case it doesn't have any of these lines, please let me know.
If it does have banding, take a screenshot and see it on ur computer monitor and see how the Grey should be displayed(full solid grey without lines)
I don't care enough to install an app, checking out a screen shot is quick and easy.
Took a photo with my tablet. These are the lines im talking about.
Also use the screenshot so u can check whether u have the same problem.
With the screen shot downloaded and displayed on my Moto X I can detect no banding of any kind. I tried it in dim and bright light. Screen brightness is set to auto so it did adjust with ambient light. Maybe I would see it if I manually cranked brightness to max.
Steve-x said:
With the screen shot downloaded and displayed on my Moto X I can detect no banding of any kind. I tried it in dim and bright light. Screen brightness is set to auto so it did adjust with ambient light. Maybe I would see it if I manually cranked brightness to max.
Click to expand...
Click to collapse
Thank you, so my case is a defect, a third replacement will happen I guess. Great phone nevertheless.
It is possible it is something that was fixed going from 4.2.2 to 4.4.x, seems unlikely though. I notice you are on 4.2.2. I am on 4.4.2.
Impossible, my issue is definetively not software related but hardware related. When I see this screen shot on an LCD based device like my PC monitor, no banding is present. After all the pointless investigation this issue is sometimes present on amoled devices like the galaxy nexus.

Dc dimming by App?

Hi,
I want to know. May I use an app to use dc dimming?
Thanks.
well you might not need an app - https://www.gsmarena.com/huawei_p30_and_p30_pro_update_enables_dc_dimming-news-37309.php
DC dimming seems to be coming as an option in the next update
what the hell is dc dimming anyway, I can not understand the explanation I found on the net..
drcldrcl said:
what the hell is dc dimming anyway, I can not understand the explanation I found on the net..
Click to expand...
Click to collapse
The linked article gives a pretty good explanation, of the difference between the current PWM method versus DC method.
Bottom line: DC method generates less screen flickering when running at a lower brightness setting.

Screen colors different betwee A & B

Helloo got an Axon M but the 1st screen A has is a bit different color and tone from screen B.
Is there a fix?
Thanks
ARZLEB said:
Helloo got an Axon M but the 1st screen A has is a bit different color and tone from screen B.
Is there a fix?
Thanks
Click to expand...
Click to collapse
I've noticed this as well and the screens are a bit offset too. I've read that these issues were a deal-breaker for some and the devices were returned. If I find anything I'll post here.
GJSmith3rd said:
I've noticed this as well and the screens are a bit offset too. I've read that these issues were a deal-breaker for some and the devices were returned. If I find anything I'll post here.
Click to expand...
Click to collapse
Very true the screens are offset too thank you for pointing that.
i think their quality control only tested screens at certain brightness levels because above half brightness the screens have the same tone and brightness but below 50% one is clearly dimmer. and night mode with dual screen mode is pretty bad because the screens don't display the same color temperature at low brightness. and the fact that they didn't try and work around the slight screen offset kind of betrays how little effort they spent on this phone
The more i use it the more i find absolutely ridiculous beta level workarounds. im getting flashbacks to AOKP, badly hidden settings in nested menus and features that only work half the time - except this is a $800 phone that was sold on contract. a shame really

Categories

Resources