Hi. I just started playing with an SGS and am very impressed by it.
Mainly performance and beautiful, vibrant screen make the phone shine. In terms of display, it beats my Desire hands-down. But there's one thing I find odd - after flashing it with Darky's 7.5 Rom(to be fair, haven't tested with stock rom), the first time I entered the browser (with white Google start page) I felt as if I were an actor in "Matrix"
To me, it feels like the screen has a clear green tint when displaying white background.
I compared it to my Desire (to make sure it's not just my eyes), and even though its screen looks very modest compared to SGS's most of the time, it looks much "whiter" (tested on about:blank, both had max brightness, Desire is LCD model)
Unfortunately, I haven't tested it with the stock rom to see if it's software or hardware fault. My friend bought an SGS as well, and hasn't flashed it yet. Will compare to his phone.
Can't make a photo comparison - don't have a camera good enough to show such slight color tints.
Is there any objective way to test phone's color accuracy? Or to manually change the colors, like in old-school CRT monitors or TVs?
warnec said:
Hi. I just started playing with an SGS and am very impressed by it.
Mainly performance and beautiful, vibrant screen make the phone shine. In terms of display, it beats my Desire hands-down. But there's one thing I find odd - after flashing it with Darky's 7.5 Rom(to be fair, haven't tested with stock rom), the first time I entered the browser (with white Google start page) I felt as if I were an actor in "Matrix"
To me, it feels like the screen has a clear green tint when displaying white background.
I compared it to my Desire (to make sure it's not just my eyes), and even though its screen looks very modest compared to SGS's most of the time, it looks much "whiter" (tested on about:blank, both had max brightness, Desire is LCD model)
Unfortunately, I haven't tested it with the stock rom to see if it's software or hardware fault. My friend bought an SGS as well, and hasn't flashed it yet. Will compare to his phone.
Can't make a photo comparison - don't have a camera good enough to show such slight color tints.
Is there any objective way to test phone's color accuracy? Or to manually change the colors, like in old-school CRT monitors or TVs?
Click to expand...
Click to collapse
Try downloading the flashlight app that uses the screen as the light source then launch the app and check the screen. Or just input this in the keypad *#0*# and test the screen from there.
Hope it helps
Hey!
I bought my galaxy 6 months ago. Not long after I noticed a minor issue with my AMOLED display. I could see blue "artefacts" in some bright areas of the screen from time to time. Nothing serious, just blue dots and stripes, subpixels. I even posted a picture of it on reddit (second attachment) more out of curiosity than anything but was later convinced it was probably a software issue. I did have some suspicions something might be wrong with my phone but it actually happened so rarely and the issue was so minor that I just got used to it because it didn't bother me that much.
I recently flashed dark core 2.2 along with rc6 and it got *significantly* worse. I could see blue subpixels all over the screen wherever there's bright white, generally on the lowest brightness setting. Now, I believed that the hardware got worse and it's time to ask for a replacement. So before doing so I obviously had to flash stock firmware and guess what - it all disappeared. So I flashed just the dark core again to go back to rc6 - and it was back again.
The thing is, I really love this ROM and I love the voodoo improvements that come with it. I don't think I can live without them any more. On the other hand, it might be difficult to convince people from samsung that there's actually something wrong with my phone - since it happens so rarely on stock ROM. And I think that this display defect is intensified by the screen improvements from voodoo/dark core.
My only idea is to somehow make it show up on stock ROM and send it to them just then. But is this even possible without rooting my phone? Does anyone has an idea why would these blue subpixels show up in white areas? Is it something they check with specialized equipment or do they boot the phone first to see what's wrong?
Anyway, guys if you could point me in the right direction or had any better ideas... Seriously, It would be helpful even if you said that I should just return my phone and hope for the best. I'm a student and I can't really afford to be charged for returning - what they think is - an operational phone
I attached two pictures
1. a picture of how my screen behaves after flashing the latest dark kernel
2. a picture of how my screen sometimes behave on stock kernels
I'd appreciate any help or advice
Hi guys,
So somehow, (and I really have no idea how I even managed to do this) I went three months without noticing the horrendous black clipping on my Int. Note. Last night I was cursing YouTube's streaming and then realised something was up. After a quick look at the test PNG which I quickly discovered I'm unable to see 1, 2 and 3 which makes for a pretty ugly experience when watching darker videos.
So my question is this. Should I root and go ParanoidAndroid to try and alleviate my issue (I assume part of this process will include flashing a new kernel which is where the issue lies?) or is there a chance that Samsung will ship a new kernel with the imminent (we hope) JB update?
I'm no newbie to rooting and totally hacked my HTC Desire to within an inch of it's life (figuratively speaking, I never bricked it) and I'm always tinkering with an Advent Vega for fun. However, I'm a bit worn out by rooting and reading up on all the proper routes, new radios, kernel issues, bugs etc. I'd like a 'quiet' life with the Note where possible!
Do you think I'll 'get away' with rooting this time or is it going to be likely needed to fix this problem?
DavieMarshall said:
Hi guys,
So somehow, (and I really have no idea how I even managed to do this) I went three months without noticing the horrendous black clipping on my Int. Note. Last night I was cursing YouTube's streaming and then realised something was up. After a quick look at the test PNG which I quickly discovered I'm unable to see 1, 2 and 3 which makes for a pretty ugly experience when watching darker videos.
So my question is this. Should I root and go ParanoidAndroid to try and alleviate my issue (I assume part of this process will include flashing a new kernel which is where the issue lies?) or is there a chance that Samsung will ship a new kernel with the imminent (we hope) JB update?
Do you think I'll 'get away' with rooting this time or is it going to be likely needed to fix this problem?
Click to expand...
Click to collapse
My opinion:
Samsung correcting the Gamma table on the firmware, so dark colors appear really dark and not light gray or completly black is unlikely. They are following the strategy embraced by other manufacturers and just release a new model with a slightly better CPU and fixes for the bugs of the previous model.
xda-developers community releasing a ROM that is realy usable and fixes this: not likely either. A ROM that has no support for camera, HD recording, FM radio or S-Pen is not going to convince many people to switch.
I recently took my Note to Samsung technical service because the screen looked yellow (another known manufacturing defect), and they replaced the entire screen, but the new one shows the same black clipping problem.
Apps like filter your screen just lower the contrast so the blacks become more gray, but the darkest tone of gray the Note can show is still too bright, leading to anything below RGB (50,50,50) appearing almost the same tone of gray.
I have just moved to a phone by other company and compared it to the Galaxy Note:
Screen is IPS, viewing angle is not so ample as in an AMOLED but at least white appears white, not light brown
The gammatest.png image is displayed correctly, top row of squares going from black to very dark gray.
Brightness on the Note is limited to avoid burning the AMOLED too fast, and even so, I had burn-in on the top of the screen after only 3 months
My new phone has 1 GB RAM, and 980 MB are listed, not 808, and I have 400 used normally, with 580 free. Note had usually 700 MB used
My new phone seems to spend more time on deep sleep, no Samsung apps or services working on the background
Hello guys,
i'm new to the Galaxy Note and the Forum, start by thanking everyone for the great job you have done and are doing.
- Before:
I bought a Galaxy Note, I am fine and i love him like a son (maybe because I have no children).
There was the original version of Android 4.1.2 firmware N7000XXLSA with NO brand.
I flashed from the original recovery kernel that is here (forum.xda-developers.com/showthread.php?t=1901191) to be precise "Philz-cwm6-XXLSA-DBT-v3.99" (I do not know why I chose this among others, perhaps because it reminded me of the original LSA final XXLSA and makes me wonder: the "Philz-cwm6-ZCLS8-CHN-v3.99" is newer than the one I flashed?).
From ClockworkModRecovery I installed, after fullwipe, the last Nightly of CyanogenMod 10.1 and the gapps (as I did on other phones like Nexus S and Nexus 7 and it is always gone smoothly).
- The problem:
Everything works fine (apart from a phenomenon of Battery Drain, but I have to recalibrate it and recharging from consuming it all off for at least 4 hours and then delete the stats etc ...), but there is one thing wrong: the monitor.
The icons on the desktop can be seen very well, ultra bright and the text looks really HD! (I come from Nexus S and I also have the Nexus 7, bright colors and blacks amazing!) But the background, some photos appear, or the shades of black phone menus you see badly.
If I use MXPlayer to see a video all blacks are pixelated, gradients are sheared.
As if it was in safe mode, type windows xp in safe mode that NOT loaded the video card drivers.
I read around on the issue and there was talk of color banding, 16bit software compared to 24bit monitors hardware, but in essence what?
Depends on the kernel?
I have to go in customer care to replace the monitor (which also occasionally changes almost imperceptibly color, for example while navigating, then on the white background of the pages, from white light turns yellow, then brown, and so on).
What do you recommend? Does anyone have or have had the same problem?
UPDATE:
This morning I tried the phone around, the street outside and the problem seems to disappear.
I set auto brightness. So maybe with strong light, increasing the brightness of the blacks are softened better.
Now I'm recovering from the last original software Samsung Kies, the much-hyped premium suite, see what happens and if the problem remains.
Thanks in advance to all.
I recommend go back to a non leak firmware which is not buggy like this one. Then see if you can reproduce. Remember those JB roms are buggy leaks. Best to use the kernel phills made explicitly for the rom version you are running.
Regarding colour changes this usually is due to powersaving apps or settings. Remove and/or disable those. especially the one in the stock browser. This a known old issue not necessary caused by hardware.
battery drain issues van best be analysed according to ahalfords sticky on wakelocks.
Okay, now that I got your attention, this is a SERIOUS issue. You may not even realise it, but if you’re not using MIUI, you pretty much have a Screen Burn In / Image Retention problem on your RN 8’s display. It’s temporary though, and goes away after a while. You can see for yourself, but I’ll come to that, and also to why it doesn’t really happen in MIUI. Also, the RN 8 isn’t the only device affected!
The issue:
This never happened over the 5 months I’ve used MIUI. It’s been a month since I flashed Pixel Experience Q, and I’ve noticed when opening Reddit, in its dark grey splash screen, I could see my notification bar and some app’s hamburger menu faintly. It started bothering me, and I started researching. How can I get burn in on a new device!? And heck, it’s an LCD. Turns out I’m not the only one. A quick Google search on “Redmi Note 8 Screen Burn In” gives you tons on people complaining, even here on XDA. Many think it’s a hardware issue, and replaced their display and still faced it!
See for yourself:
Open this dark grey picture linked below in full screen in your gallery. You may notice the notification bar burnt in. For a better example, exit your gallery with that picture open, set brightness to 100% and screen timeout to 2 mins, light mode, and just open settings and leave it alone. After almost 2 mins, quickly go back to your gallery with the picture open. You’ll see settings lightly imprinted into your screen!
Here’s the dark grey picture:
https://imgur.com/cpDyDdS
Here’s how it looks (sorry for the crappy quality!):
https://imgur.com/v2U8kKu
Solution:
Turns out that the Tianma LCD display panel found in most Xiaomi devices, like the RN 3, 4, 5, 7, 8, Mi 5 etc have to have a specific colour calibration. You need to set the Red, Green & Blue values to 90% in your ROM’s colour calibration. Take a look at these:
https://www.reddit.com/r/Xiaomi/com...urce=share&utm_medium=ios_app&utm_name=iossmf
https://forum.xda-developers.com/redmi-note-4/how-to/fix-display-burn-issue-redmi-note-4-t3703996
https://forum.xda-developers.com/re...utorial-how-to-fix-screen-burn-issue-t4014519
Here’s how colour calibration should look, I stole this image from somewhere
https://imgur.com/pgTExqo
MIUI already has the right calibration by default.
But here comes the biggest problem for some of us. Pixel Experience Q, the most popular Custom ROM for RN 8, doesn’t have this option. I tried Franko Kernel Manager with the stock Kernel and Genom kernel, and the display RGB values make no effect. So as of now, I’m stuck with this. Any tips? ROM’s like Havoc should have it though. So dev’s, please set this as the default colour calibration value!
I hope this helped, I put 2 hours of effort into it haha.
On another note, I hope y’all are staying safe from this epidemic!
bro i have it in miui .. its hardware not soft .. i noticed it in different xiaomi devices like note 8 - note 7 - and sure poco f1 .. then noticed it in realme 5 pro .. not found in my very old samsung grand prime / though companies nowadays go to those low end panels .. all of them
I have the same issue on MIUI (stock rom) too.
I did the exact same steps you described and I got the burn in. Well it is not much, I could see it only on full brightness though. Not much of an issue for me on such a budget phone tbh.
Changing the color calibration for all colors to 90% might help to reduce this burn-in, speaking of custom roms to include this as a default setting.
But it won't help with this cheap panel, which is ineed a hardware issue anyway.
Setting all 3 colours to 90 % just reduces overall brightness nothing else.
Thank you! Display colors can be changed on crDroid 6.4
https://t.me/InceptionNote8/66967
this works well for me, use franco kernel manager
It is not the rom issue
I'm seeing this issue in stock rom and i never changed roms till now. It is bcoz of poor quality display panel. Get it replaced ASAP before warranty runs out
I dont know if this is universal but setting the colour tone to cool fixes the issue completely in my redmi note 8
just change the color calibration to this and voila, u never experience burn in screen anymore. i changed it couple weeks ago and no burn in AT ALLL untill this day!
Tech_Expert said:
Okay, now that I got your attention, this is a SERIOUS issue. You may not even realise it, but if you’re not using MIUI, you pretty much have a Screen Burn In / Image Retention problem on your RN 8’s display. It’s temporary though, and goes away after a while. You can see for yourself, but I’ll come to that, and also to why it doesn’t really happen in MIUI. Also, the RN 8 isn’t the only device affected!
The issue:
This never happened over the 5 months I’ve used MIUI. It’s been a month since I flashed Pixel Experience Q, and I’ve noticed when opening Reddit, in its dark grey splash screen, I could see my notification bar and some app’s hamburger menu faintly. It started bothering me, and I started researching. How can I get burn in on a new device!? And heck, it’s an LCD. Turns out I’m not the only one. A quick Google search on “Redmi Note 8 Screen Burn In” gives you tons on people complaining, even here on XDA. Many think it’s a hardware issue, and replaced their display and still faced it!
See for yourself:
Open this dark grey picture linked below in full screen in your gallery. You may notice the notification bar burnt in. For a better example, exit your gallery with that picture open, set brightness to 100% and screen timeout to 2 mins, light mode, and just open settings and leave it alone. After almost 2 mins, quickly go back to your gallery with the picture open. You’ll see settings lightly imprinted into your screen!
Here’s the dark grey picture:
https://imgur.com/cpDyDdS
Here’s how it looks (sorry for the crappy quality!):
https://imgur.com/v2U8kKu
Solution:
Turns out that the Tianma LCD display panel found in most Xiaomi devices, like the RN 3, 4, 5, 7, 8, Mi 5 etc have to have a specific colour calibration. You need to set the Red, Green & Blue values to 90% in your ROM’s colour calibration. Take a look at these:
https://www.reddit.com/r/Xiaomi/com...urce=share&utm_medium=ios_app&utm_name=iossmf
https://forum.xda-developers.com/redmi-note-4/how-to/fix-display-burn-issue-redmi-note-4-t3703996
https://forum.xda-developers.com/re...utorial-how-to-fix-screen-burn-issue-t4014519
Here’s how colour calibration should look, I stole this image from somewhere
https://imgur.com/pgTExqo
MIUI already has the right calibration by default.
But here comes the biggest problem for some of us. Pixel Experience Q, the most popular Custom ROM for RN 8, doesn’t have this option. I tried Franko Kernel Manager with the stock Kernel and Genom kernel, and the display RGB values make no effect. So as of now, I’m stuck with this. Any tips? ROM’s like Havoc should have it though. So dev’s, please set this as the default colour calibration value!
I hope this helped, I put 2 hours of effort into it haha.
On another note, I hope y’all are staying safe from this epidemic!
Click to expand...
Click to collapse
I own a MI A1 it's 2 years, 9 months, 2 weeks, 3 days Old and has screen burns in.
not unlocked bootloader.
no twrp,custom roms,rooting.
but being a budget device (having eMMc type of storage) i have no regrets it performs very well against phones of Exynos 9609(UFS2.0), SDM665 (UFS2.1).
Comming to the topic "screen burns" will go away on its own not a matter of Great concern, leave it like that only it will automaticly go away its not Permanent .......... :fingers-crossed: