Contrast and screen brightness changed in direct sunlight - Xiaomi Poco F1 Questions & Answers

Hey, guys! I observed today that something funky was happening with the contrast and colors on my Pocophone screen. The black/dark background in apps like Youtube and XDA, both with dark themes and black or dark grey backgrounds, was getting light grey. Also, the contrast of the text seemed to change.These things happen when the top of the phone enters in direct contact with sunlight. If I cover the sensor with my finger, the screen gets back to normal. It appears to me to be an option to make text and content more visible in direct sunlight. Have you observed the same thing on your phones. What's your opinion? I'm using miui 10 Global Beta. Thanks

ivas89 said:
Hey, guys! I observed today that something funky was happening with the contrast and colors on my Pocophone screen. The black/dark background in apps like Youtube and XDA, both with dark themes and black or dark grey backgrounds, was getting light grey. Also, the contrast of the text seemed to change.These things happen when the top of the phone enters in direct contact with sunlight. If I cover the sensor with my finger, the screen gets back to normal. It appears to me to be an option to make text and content more visible in direct sunlight. Have you observed the same thing on your phones. What's your opinion? I'm using miui 10 Global Beta. Thanks
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I noticed too. Seems a display feature

Neither this is bug nor faulty screen. That's because of Auto Contrast in display setting. Anyways you can change it.

yep, it's a feature... use standard contrast

Happens even when set to standard contrast. Cant seem to be able to fix it!

Set it to increased contrast, it solved the issue for me
Set it to increased contrast, it solved the issue for me

hariranga04 said:
Set it to increased contrast, it solved the issue for me
Set it to increased contrast, it solved the issue for me
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Can you say where is that Incresed contrast option in Poco M2 Pro

Related

Minimum brightness

You don't want to give your significant other yet another reason to yell at you while you're reading XDA in bed. Rate this thread to express what you think of the Samsung Galaxy S7 Edge's display minimum dimness. A higher rating indicates that the display can get extremely dim, ideal for reading in very dark environments.
Then, drop a comment if you have anything to add!
I don't have on auto brightness or any power saving features on yet my display brightness seems to have a mind of its own. I can be in a dimly lit room and have to put my brightness slider past the halfway mark just to get decent brightness and the always on display will be so dim it's barely visible. Other times I could be in a well lit store or outside and the display will be very bright even with the slider nearly all the way down. It also seems the always on display may get brighter the longer it's on but it starts out very dim even if my brightness is cranked up. I really don't know what to make of it. Sometimes the display brightness seems way worst then my nexus 6p (not saying 6p has bad brightness just using as a reference cause most reviewers claim the brightness on note5/s7 is a bit brighter.) Other times the quality seems better then my friend's note 5.
Adaptive brightness? Sure sounds like it.
I am disappointed it does not go low enough like all android phones tablets etc. I read books in the Kindle app in bed and my iPhone or I pad can go very low brightness but all the android gadgets I have cannot they are always too bright and annoy her. I thought this could be the one but I guess not
Tezray said:
I am disappointed it does not go low enough like all android phones tablets etc. I read books in the Kindle app in bed and my iPhone or I pad can go very low brightness but all the android gadgets I have cannot they are always too bright and annoy her. I thought this could be the one but I guess not
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Install LUX Auto brightness app and it should solve your problem, in fact you can set it so dim that you can hardly read it.
I find the always on display to bright. Is there a way to dim it a bit?
Kapitein187 said:
I find the always on display to bright. Is there a way to dim it a bit?
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I totally agree with that, when you cover the sensor the brightness is way better.
It should be part of the environment, now it's more like "HEY LOOK AT THE TIME" kinda distracting
JeffreyNijnatten said:
I totally agree with that, when you cover the sensor the brightness is way better.
It should be part of the environment, now it's more like "HEY LOOK AT THE TIME" kinda distracting
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Yeah haha. The funny thing is that the "night clock" is perfectly dimmed. Wished that there was a setting for the AOD (always on display) to have manual brightness controll. And of course app notifications. Which the edge display can show, but the AOD can not. Strange decision of our Sammy friends.
Kapitein187 said:
Yeah haha. The funny thing is that the "night clock" is perfectly dimmed. Wished that there was a setting for the AOD (always on display) to have manual brightness controll. And of course app notifications. Which the edge display can show, but the AOD can not. Strange decision of our Sammy friends.
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Exactly, that would be perfect, I tried using AOD at work today and it's so distracting that it's actually worthless now. I also tried the night clock at work and it looks great, it doesn't bother me at all and it's very handy. Hope samsung will update AOD because it can be very useful.
But in my opinion the overall (auto) brightness is too bright, when I dim my screen it automatically brighten the display up to what it thinks it is the right brightness compared to the environment . With my previous phone (LG G2) it changed the auto brightness to the user preference.
You can fix this issue, set brightness 100% and reboot.
Hi guys, I noticed right now that if I switch from an high luminosity environment to a very dark one, automatic brightness remains the same and I have to uncheck and check again the "auto" option on notification bar. Other times, in same conditions, it adapt the brightness after some times instead of immediately. Dose have my phone problems?
turtuv said:
Hi guys, I noticed right now that if I switch from an high luminosity environment to a very dark one, automatic brightness remains the same and I have to uncheck and check again the "auto" option on notification bar. Other times, in same conditions, it adapt the brightness after some times instead of immediately. Dose have my phone problems?
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This is to prevent the display continue changing brightness, it does change but it has a delay so your screen isn't flickering bright, dark, bright, dark.
---------- Post added at 09:37 PM ---------- Previous post was at 09:35 PM ----------
Kapitein187 said:
I find the always on display to bright. Is there a way to dim it a bit?
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This has been fixed with the update that came out this week #yay! It's now changing automatically, not as distracting anymore :highfive:
I noted that when I turn on the screen I a low light environment, it has a fade before the screen completely turn on, like a fade effect. I did some tries and this happen only in low light condition. Is this normal?
JeffreyNijnatten said:
This is to prevent the display continue changing brightness, it does change but it has a delay so your screen isn't flickering bright, dark, bright, dark.
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Yes, but if I put the phone orizonthal (for instance I put I on the table) the brightness change immediately. Why is that?
Sended from my Samsung Galaxy S7 Edge Gold Platinum
its too bright :/
turtuv said:
I noted that when I turn on the screen I a low light environment, it has a fade before the screen completely turn on, like a fade effect. I did some tries and this happen only in low light condition. Is this normal?
Yes, but if I put the phone orizonthal (for instance I put I on the table) the brightness change immediately. Why is that?
Sended from my Samsung Galaxy S7 Edge Gold Platinum
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Does someone know something about that?
Sended from my Samsung Galaxy S7 Edge Gold Platinum
Anyone use Night Mode app? Can configure it to be like ios night mode.
ssgunner20 said:
Anyone use Night Mode app? Can configure it to be like ios night mode.
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What does it exactly?
Sended from my Samsung Galaxy S7 Edge Gold Platinum
Very good
turtuv said:
Hi guys, I noticed right now that if I switch from an high luminosity environment to a very dark one, automatic brightness remains the same and I have to uncheck and check again the "auto" option on notification bar. Other times, in same conditions, it adapt the brightness after some times instead of immediately. Dose have my phone problems?
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Click to collapse
Hi.. I have the same problem! Every time I switch form a environment with more or less luminosity I have to unchek and check again the "auto" option on a notification bar.. Do you founded out any solution?
caxopa said:
Hi.. I have the same problem! Every time I switch form a environment with more or less luminosity I have to unchek and check again the "auto" option on a notification bar.. Do you founded out any solution?
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Do you have MM or Nougat? I noticed the same in MM but it works significantly better in Nougat.
The problems some of you have ... seriously? ?

Dark scenes difficult too see in movies

I have a Samsung Galaxy Tab S3 and it's great but I can't figure one thing out. Which is the screens contrast. Dark scenes in Netflix or VLC player are too dark and hard to see. I tried different brightness settings, with/without blue light filter and the other color correction option for cinematic mode but nothing really works properly.
Is this an issue with the tablet or is there another setting to change the contrast or something?
man_with_hair said:
I have a Samsung Galaxy Tab S3 and it's great but I can't figure one thing out. Which is the screens contrast. Dark scenes in Netflix or VLC player are too dark and hard to see. I tried different brightness settings, with/without blue light filter and the other color correction option for cinematic mode but nothing really works properly.
Is this an issue with the tablet or is there another setting to change the contrast or something?
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I also noticed this with Netflix. Was hoping that turning up the brightness would help but it doesn't.
YES, YES, YES, I am shocked this isn't widely reported, I couldn't find almost anything about it and I've been searching for quite a while.
First of all it is really crazy that popular apps like plex or netflix don't offer any capability to change the brightness of the video played. No, we don't change the colorspace, black levels, bla bla bla.
I DID find eventually a solution (the ONLY one that works, a bit clumsy as it is): http://phandroid.com/2016/03/22/twilight-app-reduces-dark-contrast-on-samsung-galaxy-s7/ (yes, it's for the S7 and yes I did notice there the same issue, which makes it even crazier that it isn't something widely known and fixed).
I just picked up an S3 last night and I'm having this same issue. I watched the opening scene of The Defenders on Netflix, and I could hardly tell what was going on. Rewatched it on a proper display, and you're clearly upposed to tell it's Danny Randy much earlier in the scene, but I had no idea in the S3 until a blue light was clearly shining on him from above.
I used Twilight on my Nexus 7 because it lacked a night vision mode, ala blue light filter on the S3. I'm not sure how that can really help. Surely other people have found more elegant solutions to this problem? I've opened up other media files and they're all simply too dark. I get it's an HDR screen, but surely it has a mode for non-HDR content!
Do oled display have a blue light problem, I though it was only really a led thing.
John.
Might be an inconsistency with the displays. I have no problem with mine. Not getting any lag either but running a heavy debloated rom also. Battery life could be better. It's stupid you can't turn off the Wacom digitizer when s pen not in use. On my note 4 when I lost my s pen battery life was terrible because the Wacom digitizer stayed on. Should be an option in settings to turn it off. If anyone knows how please let me know. I don't use the s pen very often.
man_with_hair said:
I have a Samsung Galaxy Tab S3 and it's great but I can't figure one thing out. Which is the screens contrast. Dark scenes in Netflix or VLC player are too dark and hard to see. I tried different brightness settings, with/without blue light filter and the other color correction option for cinematic mode but nothing really works properly.
Is this an issue with the tablet or is there another setting to change the contrast or something?
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Click to collapse
Try switching from "adaptive display" to "oled cinema".
Sent from my SM-T820 using Tapatalk
DAvid_B said:
Try switching from "adaptive display" to "oled cinema".
Sent from my SM-T820 using Tapatalk
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Switching to modes other than Adaptive Display just gives me seemingly the same shade of yellow....
I have tab s2 and you can't change adaptive display. I wouldn't have bought this tablet if I'd known about this issue. Very annoyed.
I actually have the issue on my Samsung Tab S2, that the colors are really "hard" and lots of color information are missing in the video, details are lost in dark areas. Is there some fix for this or is the screen just too bad on the Tab S2? I know the Tab S3 has a HDR screen, and the S2 not. I dont have any HDR screens actually, but I can put color range to "full" on my desktop PC, which will en-light colors a bit, making details more pop out in dark areas (though black isnt fully black anymore if so).
Any color profile other than basic is mostly unusable, too much saturation. Still dark areas lack lots of information. Is there no way to fix this? I tested this actually
https://phandroid.s3.amazonaws.com/wp-content/uploads/2016/03/Screenshot_20160321-154452-400x711.png
and it helps with the details in dark areas, but it also makes the black bars of movies in Netflix and video players not black anymore but gray.
So from what i can tell, it's only a stock rom problem. As the screen looks amazing running liniage (best screen in the house). But I've recently decided to go back to stock debloated, as I think its running a bit snappier than liniage 16 or 17.
Has anyone found a black level fix for stock yet? (preferably not a screen tint app)
Touch the left hand side of the screen when watching netlix and a brightness slider appears
Baxy57 said:
Touch the left hand side of the screen when watching netlix and a brightness slider appears
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:cyclops: It's beyond what you're suggesting which is known :cyclops: but thanks for it
EDIT: I have now found a full workaround. First you need to enable Blue Light Filter. Then go to Settings > Accessibility > Visibility enhancements > Color adjustment > Personalized color, and choose all the colors in the correct order. If you do it correctly there won't be any change to the colors and Blue Light Filter will be "on", but actually not, which will override whatever Android is doing that's making the dark parts of movies way darker than they should be. So far I haven't found any cons of this workaround.
Original post:
Sorry to resurrect an old thread, but after trying to fix this problem for like half a day (lol) I think I found the best workaround so far. If you turn on Blue Light Filter and set its opacity to minimum, the filter will be barely noticable, but the brightness issue will be fixed.
One thing I noticed is that not all apps have this problem. For example VLC, Youtube do have it (you can even see the transition of colors and brightness for a second when exiting to desktop view). However Youtube Vanced doesn't have this issue, so I asssume the operating system does this dumb change of colors when it sees certain parameters in an app (maybe something in the manifest.json file?). It would be awesome if some more knowledgeable people could look into this issue, maybe they could find something about why YT Vanced has normal colors.

Colour bleeding on screen when scrolling, particularly noticeable with black

Hi all, I've had my Mate 20 Pro for a few months now and I've slowly started noticing this weird sort of bleeding that seems to happen on my screen when I'm scrolling or switching between apps, particularly noticeable with apps that have dark mode on.
For an even longer time I've noticed that when on the official Reddit app (dark mode) for example and I'm scrolling down, the text becomes very fuzzy looking and the top of the text looks darker than the rest (or bottom if scrolling up).
Now the same thing is happening to images and app screenshot when switching between apps. It's become very noticeable now. Has anyone else experienced this?
I should note that this is on the lowest brightness settings. When I turn my brightness all the way up, I can't seem to notice it as much. My eye will only catch a split second of bleeding when scrolling past images.
I've attached a screen recording here gfycat . com/happyunhealthybeardedcollie but I'm unsure if you will able to see it or not. (I'm unable to post outside links or upload as I am a new user, apologies for the inconvenience).
Thanks.
Pretty sure it's OLED smearing
kearneybobs said:
Pretty sure it's OLED smearing
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... and it is normal on this type of screens. Black color on these screens means powered off pixels. The time needed for these pixels to turn on or turn off during scrolling yields that smearing effect. This is the price we are paying for having screens that display black as it should be, i.e. total absolut black.

Ghosting issue ? ?

So is it pretty obvious , or does ghosting usually happens on low brightness on every AMOLED display or is this phone only suffering from this ?
(I saw ghosting while I was horizontally scrolling a black picture of a gray background).
Can anyone confirm this for me ? ( Not a huge issue though , it doesn't happen after the brightness is increased)
Try with this image in lowest brightness
Zoom in and move it left and right you will see a trail of weird color trailing the black circle.
its normal for amoled displays
almost all amoled screen leave purple trails when switching from pitch black to some other color pixels.. don't worry about it
Ya when scrolling in app drawer the icons looks like wobbling.
Yes this has been the case in my Realme XT as well. When you have black background in the app drawer and there is any app icon that is dark you see the icons changing their shape while we scroll.
Even in YouTube when you turn on the Dark Mode and there is any video that is pitch black you may see it leaving a trail when you scroll through the feed. This is more often when screen is in low brightness. Is this issue for all other phones with Amoled panel or only with Realme XT ?
Amoled panels basically has the lowest response time in any display technology format except "Ink Display". Every individual pixel lights up individually from switch off (black) to on (any color). Higher the brightness means higher the color spectrum shining into your eyes and thus it let you see no ghosting while at peak brightness. It's still happening but we dont usually see that clearly. Ghosting is very natural phenomenon of Amoled technology. Also these budget Amoled panel tends to big fan of burn out. So make sure you are using live wallpaper that changes or moves (stock one that comes with the ColorOS is good enough).

Display artifacts and noise at low brightness and dark grey colors

Hello. I have a question regarding the display of dark grey at low brightness. Noticed this using the google web page in dark mode before going to sleep with all other lights dimmed or off.
I also noticed some burnt in segments of the screen like nav bar and status bar at the conditions described above.
I am attaching the dark grey filled image I use to distinguish the problem. Can you please test it with your S21 in dark conditions and fullscreen and tell me if you see same noise and smudge-like artifacts?
I must say I tried to go to BestBuy and Target to compare it to other S21 by myself, but obviously it didn't work because there are too many light sources in the store and it's too bright to see that.
I also tried to make a photo of what I am seeing in completely dark room, but obviously it's less informative compared to human eye.
Thank you.
Yrtimd said:
I am attaching the dark grey filled image I use to distinguish the problem. Can you please test it with your S21 in dark conditions and fullscreen and tell me if you see same noise and smudge-like artifacts?
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Maybe I am not very discerning but screenshot_* shows no anomalies on my S21. The file_000 however does have a visual imperfection. It's the file itself and not the screen because the "smudgy" area moves as I scroll and grows when I zoom. So it's an artifact of the file. It does have some subtle grey coloring.
goattee said:
Maybe I am not very discerning but screenshot_* shows no anomalies on my S21. The file_000 however does have a visual imperfection. It's the file itself and not the screen because the "smudgy" area moves as I scroll and grows when I zoom. So it's an artifact of the file. It does have some subtle grey coloring.
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The File_000 has anomalies because it's a photo of a screen producing artifacts, when the Screenshot is just filled grey and should be clean of any artifacts on a healthy screen. I must say when I open the Screenshot using gallery and in fullscreen, and try to move it left or right until previous or next image border shows in the gallery, I can see the artifacts and smudges remain static because it's screen defect but the image (screenshot) is clear of any imperfections. Thank you for trying though.
It is normal since a few years, Xiaomi since the Mi 8 and has it Oneplus since the 8 series and now Samsung.
It has something to do with the newer generation panels.

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