Screen issues? Going grey and popping? - Samsung Galaxy S8 Questions and Answers

Hey all, had my s8 for 2 days and ive noticed when i lock it whatevers on the screen turns greyscale for a split second before it locks, is this right? I tried a factory reset but it still does it.
Secondly sometimes when i unlock it via fingerprint the screen seems to jump or pop when it gets to the homescreen. I tried to record it and upload it but dont know how to upload videos from my phone. I cant seem to replicate it but it happens enough for it to be a little annoying. I dont want to factory reset again but if i have too i will.
Edit: its hard to explain what it is, its like the screen refreshes. Ive made sure im not holding any buttons amd made sure my hands arent touching the side of the screen
Edit: i think its always on display related as when i turn it off it seems to be working okay

Related

[Q] Screen flickering?

After hanging up from a phone call the top left corner of my screen was really bright. There were two vertical lines down the screen and the screen was transparent and flickering. I could still see my home screen and the screen was functional. I restarted the phone and it was still acting up. Only after turning the phone off for a few mins did it stop. Has anyone else experienced this or have any ideas on what would cause it? I haven't had any issues with the phone, no drops or anything. Currently running aokp with matrix kernel.
theville502 said:
After hanging up from a phone call the top left corner of my screen was really bright. There were two vertical lines down the screen and the screen was transparent and flickering. I could still see my home screen and the screen was functional. I restarted the phone and it was still acting up. Only after turning the phone off for a few mins did it stop. Has anyone else experienced this or have any ideas on what would cause it? I haven't had any issues with the phone, no drops or anything. Currently running aokp with matrix kernel.
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I had this issue too. My phone just arrived today. In my case the problem occurred after power cycling the phone (trying to get the WiFi to connect.. grrrr) The boot process was fine but once I got to the launcher my screen was flickering like a strobe light. I tried to power off and back on and it still happened. I didn't give it several minutes like you did so I'm not sure if it would have gone away. Since I hadn't really configured the phone yet I simply did a factory reset and it was fine. Seems to be a software issue. I hope it doesn't happen again but if it does I'll see if just leaving it off for a while helps. I hope so because I don't want to have to factory reset all the time!
-Matt

[Q] How do I disable orientation-initiated screen sleep?

I'm not sure if I'm describing this correctly in the title so let me try and elaborate -
I've used probably 10-15 different ROMs for my Nexus 10 and lately every single one I try, I have the same issue when I have the screen titled down horizontally towards me while reading in bed ( think holding it up while lying on my back, angled down at me so I can read ), where the screen blacks out/goes to sleep.
Then I have to tilt it back so it's vertical again and sometimes it puts me at the lock screen but more often I have to hit the power button to get the lock screen back, infuriatingly I then sometimes get stuck in a loop of hitting power to get to lock screen as it's going back to lock screen so then it kills the display again so then I have to hit power again etc etc. Once the screen is back and displaying everything is fine until some random amount of time ( between 5 seconds & 5 minutes ) when the screen just goes black again - presumably when I move/adjust my position or the angle of the screen.
Anyway - I believe this is version independent, I don't think it's the ROMs, it's like it's something built-in to the OS.
The only thing I can figure is it's either related to the accelerometer detecting that I'm tilting the tablet horizontally so the screen is facing down and thus it is killing the display, OR it's the light sensor detecting a darkening of the light since I would be angling the screen away from a direct light source and so it kills the screen thinking I'm placing it face down on a table.
Possibly related - I've also noticed since 4.2.2 ( maybe coincidence ) that I can't rotate my screen 180 degrees and be able to unlock the device. No matter what, if I flip that sucker around it instantly kills the display and locks the screen. I've got auto-rotate on, so I know that's not the issue, and if I hit the power button to get the lock screen up, then unlock it INSTANTLY locks again and kills the screen. It's like there's a setting now that says I CAN rotate if I want to but there's no point because I can't actually unlock the screen to do anything. Keep in mind this ONLY happens when flipping it 180 - if it do it 90 or 270 and have it vertical there is no issue, it is literally only when it is flipped 180 that this occurs.
Am I over thinking this or is there something really, really obvious I'm missing? I've gone over every setting I can think of and the only thing remotely screen related is the sleep timer but it doesn't matter how long I make it or if I even turn it off entirely - every time I get into bed to read I have to mash the power button to get the screen going again. It's minor in the grand scheme of things but it is incredibly frustrating when all I want to do is read before going to sleep, just stay open damn it !
I hate to shameless bump this but does anyone know what I'm talking about? If I tilt my N10 past a certain degree ( I want to say it's around 30 degrees or so ) the screen just goes to sleep, how do I stop this? I've used a ton of different ROMs so it seems to be something consistent and/or a fundamental "feature" of JellyBean and/or Android in general.
Astriaal said:
I hate to shameless bump this but does anyone know what I'm talking about? If I tilt my N10 past a certain degree ( I want to say it's around 30 degrees or so ) the screen just goes to sleep, how do I stop this? I've used a ton of different ROMs so it seems to be something consistent and/or a fundamental "feature" of JellyBean and/or Android in general.
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If nothing else, I would say it rather "seems" to be a hardware issue, because I've never seen this behavior on my own device. That said, I can't say I've heard of many people talking about this either.
Rirere said:
If nothing else, I would say it rather "seems" to be a hardware issue, because I've never seen this behavior on my own device. That said, I can't say I've heard of many people talking about this either.
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Thanks for replying! Good point - I've just assumed it wasn't something specific to MY N10 because I can't imagine why it would happen from a hardware perspective since it's never been damaged ( dropped, scuffed ) in any way. Unless I just got a bad egg with a faulty accelerometer or light sensor or something, which is also possible.
I suppose if no one else is experiencing this and it's isolated to me and is ROM independent than it must be hardware. Either that or when I'm laying in bed I generate large bursts of electromagnetic activity that cause it to think I've closed the "smart" cover. :cyclops:
Screen Timeout
I don't know if any of this matters, but I am just curious.
What is your Screen Timeout setting? Have you tried increasing this? Do you have it set to lock screen upon pressing the power button? Have you tried changing it? Do you use a pattern lock, pin code, other?
SmokinCharger said:
I don't know if any of this matters, but I am just curious.
What is your Screen Timeout setting? Have you tried increasing this? Do you have it set to lock screen upon pressing the power button? Have you tried changing it? Do you use a pattern lock, pin code, other?
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My screen timeout is set to 10 minutes, though it doesn't seem to matter what I set it to - I just set it to 30 and the same thing happens after a second of tilting it.
I have screen lock via slide, but while I do lock/kill the screen via pressing the power button I just realized I've never actually set it to do this. I guess I thought it was a built-in feature - I've just gone through all the settings I have ( currently using FlamingMonkey AOSP ROM for reference ) and I don't see any option anywhere to enable/disable this feature. :S
Maybe there is an issue with my power button and when I tilt the tablet it jiggles it enough that it "presses" down and locks?
Use ultimate rotation control from store and force the lockscreen to landscape at all times.
Astriaal said:
My screen timeout is set to 10 minutes, though it doesn't seem to matter what I set it to - I just set it to 30 and the same thing ould be there for your ROM too. happens after a second of tilting it.
I have screen lock via slide, but while I do lock/kill the screen via pressing the power button I just realized I've never actually set it to do this. I guess I thought it was a built-in feature - I've just gone through all the settings I have ( currently using FlamingMonkey AOSP ROM for reference ) and I don't see any option anywhere to enable/disable this feature. :S
Maybe there is an issue with my power button and when I tilt the tablet it jiggles it enough that it "presses" down and locks?
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I think that you are on the right track. The option to lock the screen on hitting the power button is under the Security settings for stock android. It should be there for your ROM too.
I constantly hit my power button when sitting it down or picking it up. That is why I disable the instant lock option.

[Q] VS980 Stock OTA - Lock Screen Glitch?

I've actually had no luck finding anyone reporting this issue, but it's one that is really starting to bug me...
Sometimes, when I turn the phone on, rather than the traditional lock screen, the camera screen that you can ordinarily get to from the lock screen shows up...but it's not the full camera screen; it fills up like 3/4 of the screen, and the buttons have no functionality. Almost as if I had swiped over to the camera, but it froze about halfway through opening it.
I have tried to discern a pattern here, but there doesn't appear to be one...whether I turn on the screen with the power button or knock-on, it still happens randomly. I thought for a while that it only happened when I locked the phone with an app running on the screen, but that proved to be incorrect as well.
Like I said, having no luck finding anyone else reporting this. Has happened since I got the phone, even after updating. I've got a feeling its just a glitch I'm not going to do anything about, but if anyone has had any luck making this stop, I would greatly appreciate some advice!

E-ink Lock Screen

Hello everyone,
So, I'm having a bit of a strange problem with my Yotaphone 2...
I did a factory reset on it a while back, and everything went fine, except now, when the screen is locked, I can no longer unlock the e-ink screen by dragging up the lock icon on the bottom of the e-ink screen. I have to use the hardware power button, which is a little bit inconvenient at times. I've spent quite a while trying to locate what setting got effected to make it not function, but with no luck. Anybody have any idea where I can turn this function back on?
It happened to me too, I think it was something related with the Lollypop update, but could be some setting that has changed and that I cannot find. However, I found that if I double tap before tracing the finger motion, it usually works. That's why I didn't look further into the issue.
alienBaboso said:
It happened to me too, I think it was something related with the Lollypop update, but could be some setting that has changed and that I cannot find. However, I found that if I double tap before tracing the finger motion, it usually works. That's why I didn't look further into the issue.
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No luck for me. I'm still on Kitkat anyway...
Looks like I might be stuck...
alienBaboso said:
It happened to me too, I think it was something related with the Lollypop update, but could be some setting that has changed and that I cannot find. However, I found that if I double tap before tracing the finger motion, it usually works. That's why I didn't look further into the issue.
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Click to collapse
Actually, scratch that... after your double tap suggestion, I started randomly tapping around managed just once to get it to unlock from a screen touch, but have not been able to replicate the movement so it happens again. What movement exactly do you use to get it to unlock?
Update:
Seems to be some kind of sensitivity issue. I can get it to unlock about once out of every 50 swipes. Less than ideal.
I leave the phone with the E-ink screen facing up (to prevent the gyroscope from switching sensitivity to the amoled display instead), then press twice the lock icon, and on the second time my finger touches the E-ink, I drag it up to the center of the phone. It took a bit of practice but now I can get it to work consistently. The double tap is because if the phone has been inactive for a while, it enters sleep mode, and it looks like that turns off the finger gesture recognition. Other possible explanations are that maybe you don't press the screen firmly enough, or maybe you placed some plastic sheet over the back display and that reduces sensitivity.
I noticed that the unlock gestures on the EPD work only when the phone recognizes that you've it in the hand or you're using it. So I take it and I unlock it effectively. Trying to unlock when it lays down and you haven't moved it for a while brings to your experience.
Thanks to both of you for the advice... unfortunately, neither seems to be doing the trick. Just a caution for any other people who are thinking of doing a factory reset - it seems to seriously impact sensitivity for the e-ink unlock, so be aware.
I never succeed to do slide up unlock even within 1st tutorial. Double tap unlock was the only workaround for me. Also activated glove sensitivity mode.

G4 Digitizer problem?

I have a Moto G4 that has had the touch screen become very erratic lately. This issue appeared shortly after a factory reset. The phone is stock, recently OTA updated to NPJ25.93-14.7. It frequently freezes and won't respond to touches of apps or the home/back/recent buttons, and won't side scroll to the next screens properly. Sometimes random apps launch on their own without any touch, and if you try to quit them with the back button they keep relaunching. The problem is intermittent.
I activated "Show Taps" in Developer Options and when the problem is happening there is a tap dot near the lower right side of the screen. It bounces up and down a little bit and vibrates sometimes. When this dot is visible tapping on anything else like app icons or buttons usually has no effect, however the taps are shown on the screen. If I hit the power button to make the screen go black it will sometimes recover when I reopen the display, other times it takes a reboot.
Wondering if it's a hardware issue, a guy at a Verizon store who seemed to know more than most said it was a faulty digitzer--it's seeing touches where there are none. I've replaced displays successfully before, would just like to have a confidence level that the digitzer is really bad before doing that, as opposed to a software or other hardware issue. Any ideas about problems that might cause this problem, like other hardware or a corrupted OTA? Seems very hardware-ish to me, but I'm no expert.
I have Drive links to a couple of short videos on the symptoms, can send links. Much appreciate any insights.
Mine has that issue as well. It will spam the 9 key on the unlock screen or anything in that spot if an app is open or what is on that spot at the home screen. I have to double unlock the phone to fix it. I guess turning the screen on and back off resets it for that session. But it's mostly every time the screen goes dark and comes back up I have to turn the screen off and back on to use the phone.
I had a similar problem and was able to send it in under warranty and get a replacement phone
G4 Digitizer or ghost touch
Apparently this is called Ghost Touch issue, and affects many phones. One solution tried is to disable Battery Optimization for System UI and Google Now Launcher in Settings>Battery>Battery Optimization. That seemed to cure it for a week or so, but the problem returned today. I can sometimes recover form it by hitting the power button to blank the screen and then reopen. Other times it requires a reboot. I see all kinds of alleged solutions out there from dimming the brightness to removing tempered glass protector to using a slow charger, but those don't seem like real fixes but workarounds (if they even work at all). Any other ideas?

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