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i have a problem with light sensor. sipmply is not working.. when i turn it on the screen goes to lowest settings.
I installed the "water level" program an i see that there is always at 926 lumens. any idea whats wrong?
i try hard reset but the problem persists.
What I did for it to actually start working was I put the "On battery power" all the way to power save, and then selected "auto adjust backlight.
I might look stupid here, but my screen goes dimmer in a pitch black room, and brighter when there is a lot of light. Is this how it works?
Vector-SS said:
I might look stupid here, but my screen goes dimmer in a pitch black room, and brighter when there is a lot of light. Is this how it works?
Click to expand...
Click to collapse
That's right - if the environment is darker you don't need that much backlight for the screen to be readable. The more light is shining at the display the brighter it has to be in order for you to see anything. It's really more of a power saving feature...
for the record:
i return my device as DOA and now i got a new one that is working fine .
Hello everybody, I have the following "visual effect". It happens roughly 50% of the times the display switches off. It doesn't matter if it is by it self, by the power button or by a software button. In the very moment when the display switches off, a greenish dot in the center of the display flicks for a split second, along with a same color vertical line trough the whole screen. Obviously it is not supposed to be this way Beside this issue, there is no other problems with the display or the phone( for now). What do you think about this? Thanks in advance
Sounds like a screen off CRT effect, check you tube to see if that is your problem
Isn't the CRT effect a horizontal white line ending up in a dot?
I genuinely think the OP's screen may be defective...
Sent from my GT-N7000 using xda app-developers app
do a lcd test and check if all pixels are working ok
Unfortunately it is not a CRT effect, although it looks a bit like it. The difference is, that the line and the dot( little spot) appear simultaneously for a fraction of a second. In a daylight it is hard to see it, even more it happens just 50% of the times, but not every other time. Its somewhat random.
The *#0*# test do not show much. No dead pixels. On blue you cant see anything, on green and red I think I see a little bit darker spot in the center of the screen( where the dot/spot appears), but there are such darker sports and elsewhere on the screen.
BTW, I noticed recently, that when the screens dims a bit shortly before switching off, this dimming happens not so smooth. How should I say it... it happens on a several steps, although the whole thing is done in less then a second, it is not so fluid. Is it supposed to be this way?
Thanks for your help guys
have u tried flashing a different rom stock
I am on the latest German stock 4.0.4, tried several others, including 2.3.6. .Currently with Hydra kernel. No difference whatsoever. I think the auto-brightness doesnt work so good. When set on fixed value it dims more fluidly.
if u on stock rom and not rooted then take it to a service center
Hi,
Has anyone notciced un-even brightness across the screen at low light levels (for darker colors)? I thought it was just the nature of these OLED screens, but I don't see this with Galaxy Phone with similar display type, so I'm wondering if I just have a defective unit with bad display.
To test it:
- Do this at night (when ambient light is fairly low).
- Lower brightness down to the lowest setting (turn off auto-brightness)
- Open Chrome browser, and close all tabs, so that you get a blank dark screen with just the "+" icon. This leaves a dark gray background, just enough to notice if there is any uneveness in brightness.
On my unit, I see about 3-4 inches of bands/streaks of darker areas at bottom half of the screen. If I rotate the tablet, the darker areas stay in their physical location (so these bands become vertical instead of horizontal), so I know it's not a software issue.
I have a couple of weeks left before I need to decide on whether to exchange the tab, so would appreciate if anyone can help me verify if this is normal thing with these screens.
Many thanks, Tony.
tonyc1 said:
Hi,
Has anyone notciced un-even brightness across the screen at low light levels (for darker colors)? I thought it was just the nature of these OLED screens, but I don't see this with Galaxy Phone with similar display type, so I'm wondering if I just have a defective unit with bad display.
To test it:
- Do this at night (when ambient light is fairly low).
- Lower brightness down to the lowest setting (turn off auto-brightness)
- Open Chrome browser, and close all tabs, so that you get a blank dark screen with just the "+" icon. This leaves a dark gray background, just enough to notice if there is any uneveness in brightness.
On my unit, I see about 3-4 inches of bands/streaks of darker areas at bottom half of the screen. If I rotate the tablet, the darker areas stay in their physical location (so these bands become vertical instead of horizontal), so I know it's not a software issue.
I have a couple of weeks left before I need to decide on whether to exchange the tab, so would appreciate if anyone can help me verify if this is normal thing with these screens.
Many thanks, Tony.
Click to expand...
Click to collapse
I have notice a similar thing, mostly on gray - dark gray backgrounds, and not necessarily at lowest brightness (low enough though). I wanted to check about it on a couple of devices on display at retail stores but it's hard to test there.
Sent from my SM-T815 using Tapatalk
Hi tonyc1,
Having had 4 of these I can confirm that this unevenness is normal on the 9.7" screen but was not present on the 8" model.
I went through 4 to get one that was reasonably even, 2 of them were pretty awful to the point that the greyscale was all over the place.
The unit I settled on has a slightly darker band in the middle of the screen and a slight darkening at the very top.
I owned the original tab s 10.5 and have to say the screen on that was more even and detailed, I prefer the former factor and speed of this S2 but the screen is a step backwards.
Hope this info helps.
Cheers
Thanks for the notes and confirming this is a somewhat common issue. I guess I will live with it for now..
Is anyone having any trouble with setting screen mode to vivid?
When I switch to vivid, the entire screen becomes very orange, to a degree that something is clearly wrong. It looks like the blue light filter is turned on, even though it isn't. And turning on the blue light filter makes it much worse. It's like there is a single application of blue light filter permanently active, and then a full second layer being added when actually turning the blue light filter on.
This is coming from someone who generally runs Warm1 or Warm2 settings on my TVs and monitors. This isn't just a warm white, this is distinctly orange. Changing back to natural brings the white levels back to a normal level that I would say is pretty neutral, if not slightly warm.
When set to vivid, changing the white balance between warm and cool does almost nothing; the change is so subtle that you have to actually flip back and forth several times to notice it. And changing the RGB in advanced settings does absolutely nothing.
A couple other facts to note:
- I do not have any type of screen protector; the one that was on the phone out-of-the-box has been removed.
- This isn't just related to the angle at which I am viewing the phone; it is consistently orange from every possible angle.
- Blue light filter, night mode, and adaptive brightness are all turned off.
Is anyone else experiencing this, or is it just on my end? I have restarted the phone several times. I would really like to avoid a factory reset if possible.
i find mine to be more warm in natural mode however is been known that the screens on the S10 are much warmer than s9/n9 due to the reduction in blue light
if in vivid mode - please access the manual setup maybe the red is setup to max or something
Check that you do not have night light also selected in the drop down settings, as the s10 already has blue light filter reduction.
Mine was like that originally. Had to install Play Books and then turn off it's version of night mode. Seems that even though I didn't install it on this phone, it's night mode somehow still carried over.
tim2london said:
i find mine to be more warm in natural mode however is been known that the screens on the S10 are much warmer than s9/n9 due to the reduction in blue light
if in vivid mode - please access the manual setup maybe the red is setup to max or something
Click to expand...
Click to collapse
As I said in my post, it doesn't matter what I set the RGB values to, they make no difference. And the whites look just fine in Natural mode, so it's not the screen, it's a software issue.
tandeh said:
Check that you do not have night light also selected in the drop down settings, as the s10 already has blue light filter reduction.
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Click to collapse
As I already said in my post, the blue light filter is turned off. It's off in the quick settings and off in the actual settings. I can turn it on and it doubles the problem; turning it back off returns to the normal problem.
lightmastertech said:
Mine was like that originally. Had to install Play Books and then turn off it's version of night mode. Seems that even though I didn't install it on this phone, it's night mode somehow still carried over.
Click to expand...
Click to collapse
I've never used Play Books before. Installed it just now and there's no night mode in it.
So it looks like the bug is tied to setting a schedule for the blue light filter. This morning the overly orange effect was gone. It seems likely that the setting somehow carried over from my previous phone and stayed separate from the one on this phone. Unfortunately, this probably means I will need to factory reset because there is no way of accessing this second schedule.
I won't be the only person that has carried over data from a previous phone and used a scheduled blue light filter. I hope Samsung fixes this in an update so that others don't have to deal with it.
In Play Books, open any free book and click on
then disable the schedule and hit turn it off now if it's on
Edit: screenshots aren't showing up for some reason. Anyway open any free book, tap in the middle of the page to bring up the menu bar at the top, tap on "Aa" and then night light settings. Set the schedule to "None" and hit end now if your screen is currently orange.
My wife has never installed Play Books, and that still fixed it for her.
lightmastertech said:
In Play Books, open any free book and click on
then disable the schedule and hit turn it off now if it's on
Edit: screenshots aren't showing up for some reason. Anyway open any free book, tap in the middle of the page to bring up the menu bar at the top, tap on "Aa" and then night light settings. Set the schedule to "None" and hit end now if your screen is currently orange.
My wife has never installed Play Books, and that still fixed it for her.
Click to expand...
Click to collapse
Good to know, thanks. If the issue comes back again tonight, I will try this.
I think there is some hidden night mode in android which Play Books ties into. My wife's old Pixel had a night mode setting in the settings app which she had set up, and the new S10 night mode looks entirely different. Think copying settings and accounts over brought the hidden night mode settings over, and Play Books is just the easiest way to access that hidden setting.
The Play Books trick worked. Thanks guys!
Exactly like @lightmastertech said, the vanilla Android night mode settings are hidden but still active, and it carried over from my Pixel 3. Play Books allowed me to access this menu (odd that it's still there, 100% intact) and disable it.
Sevael said:
The Play Books trick worked. Thanks guys!
Exactly like @lightmastertech said, the vanilla Android night mode settings are hidden but still active, and it carried over from my Pixel 3. Play Books allowed me to access this menu (odd that it's still there, 100% intact) and disable it.
Click to expand...
Click to collapse
Google's gonna get a lot of downloads for Play Books now, lol. Only app I could find that accessed the system night mode an not its own filter overlay. Glad it worked for you man! ?
Sevael said:
Is anyone having any trouble with setting screen mode to vivid?
When I switch to vivid, the entire screen becomes very orange, to a degree that something is clearly wrong. It looks like the blue light filter is turned on, even though it isn't. And turning on the blue light filter makes it much worse. It's like there is a single application of blue light filter permanently active, and then a full second layer being added when actually turning the blue light filter on.
This is coming from someone who generally runs Warm1 or Warm2 settings on my TVs and monitors. This isn't just a warm white, this is distinctly orange. Changing back to natural brings the white levels back to a normal level that I would say is pretty neutral, if not slightly warm.
When set to vivid, changing the white balance between warm and cool does almost nothing; the change is so subtle that you have to actually flip back and forth several times to notice it. And changing the RGB in advanced settings does absolutely nothing.
A couple other facts to note:
- I do not have any type of screen protector; the one that was on the phone out-of-the-box has been removed.
- This isn't just related to the angle at which I am viewing the phone; it is consistently orange from every possible angle.
- Blue light filter, night mode, and adaptive brightness are all turned off.
Is anyone else experiencing this, or is it just on my end? I have restarted the phone several times. I would really like to avoid a factory reset if possible.
Click to expand...
Click to collapse
I have a s10+ and just noticed I have the same exact issue. I posted earlier on the s10+ forums.. Natural looks much cooler
Nevermind.. the playbook trick worked. I came from a pixel and had the blue light setting turned on much earlier than my s10+. Thanks @lightmastertech @Sevael
Wow, just wow. Ran into this tonight for the first time because I wanted to try out the Vivid colour mode. What an amateur oversight by Samsung to not prevent the stock night mode from running. For those that want to have access to this setting without Play Books, you can use Quick Shortcut Maker and just search for Night Light, then launch the returned result. It will put you right into the stock Night Light mode.
Sevael said:
The Play Books trick worked. Thanks guys!
Exactly like @lightmastertech said, the vanilla Android night mode settings are hidden but still active, and it carried over from my Pixel 3. Play Books allowed me to access this menu (odd that it's still there, 100% intact) and disable it.
Click to expand...
Click to collapse
Can you now change the color temperature after play book trick? I cannot still change it.
I just had to bump this because of the absolute cavalcade of potential issues that can cause the screen to appear tinted. I've googled this for almost a year now after only noticing the yellowing of my screen when in Google photos. Then the random tinting was happening at sunset and every forum pointed to blue light, vivid setting, night modes etc... To find this elusive setting in play books of all places, to fix an issue that's plagued me through my last 3 devices, to the note 10 I'm on now, and it's finally fixed. Thanks. Thanks a lot.
I have only just bought an S10, and I have the same issue as OP. I have installed play books and followed instructions on this thread, but can't find in on play books night light settings set the "schedule" to "none" and hit end now.
Thank you so much ! Same happened to my FOLD - You solved it for me !
lightmastertech said:
In Play Books, open any free book and click on
then disable the schedule and hit turn it off now if it's on
Edit: screenshots aren't showing up for some reason. Anyway open any free book, tap in the middle of the page to bring up the menu bar at the top, tap on "Aa" and then night light settings. Set the schedule to "None" and hit end now if your screen is currently orange.
My wife has never installed Play Books, and that still fixed it for her.
Click to expand...
Click to collapse
You are a genius - I had this happen to my new Galaxy Fold - it suddenly became warm and dim and I couldnt figure out what happened - Searched forums and found your solution - This must be pinned in all SAMSUNG forums
Thanks !
palakpatel910 said:
Can you now change the color temperature after play book trick? I cannot still change it.
Click to expand...
Click to collapse
Did you find out the solution?
My note 8 is 1 and half years old now. about 2 month ago, it start to have an issue that the screen will become yellow and blurred if turn off the screen and turn on again within 5 seconds. when the screen become yellow, the brightness of the screen will drop, also the text on the screen feels like got a shadow effect. Not related to night mode/blue light filter/google book night mode etc, all tested on/off and no use. and recent month it become even worse, when the phone become hot it will also become dim and yellow. any solutions?
the dim and yellow effect even visible when the phone restart and show the SAMSUNG boot animation. when dial *#0*#, check the color, red looks like orange, green is ok, blue looks like purple...
RomBox said:
the dim and yellow effect even visible when the phone restart and show the SAMSUNG boot animation. when dial *#0*#, check the color, red looks like orange, green is ok, blue looks like purple...
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Click to collapse
You need a new screen unfortunately. That's not going to go away it's going to get worse.
MrMike2182 said:
You need a new screen unfortunately. That's not going to go away it's going to get worse.
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Click to collapse
I agree! Sounds like the display has developed an issue.
well, it seems so, have to replace the display. but the display actually can show the colors well -- when it's cool, and when you press button to activate the screen after the screen had been off for at least 5 seconds.
if there can be a software solution, disable the dim color mask when the phone is hot, then I can save the money for replace the screen...