Lag and Random screen flashing. - Samsung Galaxy S7 Edge Questions and Answers

Lately my girlfriend has been having issues with her GS7 edge, she has the screen timeout for 1 minute yet the screen turns off randomly when she's scrolling or texting or just about anything.
Also when she has her phone face down laying on her she notices the screen flashes blue.
And just the lag on the phone, she tells me when she's messaging a lot her phone lags. When she unlocks her phone weather its using her fingerprint or the pattern to unlock it. So I suggested her waiting for a minute before she answers back and it does improve it but is that something she's going to have to do for now on or is there something to fix these things.... I know it's touch wiz and there is always lag when you are dealing with it but I don't really know since I've always used Nexus devices.

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Random screen activation.

Nexus 4,
Randomly, my screen turns on for no reason. I try to disable daydream feature and no effect. Even during a call random, screen will go on with no change in environment.
Anyone else have this issue
I have noticed this once or twice in my pocket...I pull my phone out and I've been typing in google now or some other random screen. I have a feeling it has something to do with lockscreen widgets, so if it keeps happening, I'll probably just get rid of that "feature" as I don't really need it that much anyway.

GT-I9500 Bug - Lock-screen appears for a split second

Hello everyone,
I've been having this problem ever since I bought my phone 6 weeks ago.
I'm currently running XXUBMEA rooted stock ROM. And I've had this bug even before updating.
I searched the forums here but couldn't find anyone complaining about it, although I know a friend or mine who has the phone and is also facing it.
Sometimes the Lock-screen appears for a split second, during that, the brightness also goes to max. If it happens while I'm typing somewhere, the keyboard disappears, and I have to tap on the text box to make it appear again.
Also, sometimes it happens when I'm playing a game in landscape mode, the screen rotates to portrait just less than a second, and returns to normal.
It's very annoying, it happens to me daily, I'd say about 5-7 times.
Anyone else facing this?

[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!

touchscreen unresponsive after opening slide cover

Hey guys,
i noticed something strange on my tn7.
Sometimes (maybe 50% of the time) when i open the (original) slide cover to wake up the screen, the touch screen is very unresponsive.I can touch, but it notices only ~10% of what i am doing and is extremly laggin. when i then turn off the screen with the button and turn it on with the button again, everything is fine.
Also when doing this i have to wait for the screen to go off completly - if i wake it when the backlight is still on but the screen is black, the issue stays.
This never happens when i wake the tab with the button though, only with the slide cover. Thats what is kinda strange i think..
Anybody got an idea on how 2 fix this?
Running rooted Stock Kitkat.
Thanks
This is a problem that has existed since this tablet was released and persists still to this day. All you can do is cycle the screen off/on with the power button, unfortunately. Seeing as how this hasn't been solved in the last 10 months and Nvidia is showing signs that they're abandoning this tablet to focus on the Shield Tablet, it will probably never be fixed.
Screen lag
I have a similar issue on mine. I've had mine now about six months and it's very intermittent but at certain times, especially when the battery is low, the keys down the left side lock up and become unusable. I bought the tegra note 7 because of the stylus which I prefer to touching the screen with my index finger, but I don't much like the stylus itself which could have been made of better materials I think. I also find that sometimes it doesn't register clicks, then it will be perfectly ok for a little while. I had hoped with the tegra 4 and the much hyped stylus it would be very responsive but it's inconsistent. Anyone else recognise these flaws?
I also get this intermittently but only ever when waking it up with the cover, its never happened when turning on with the button. When it does happen a quick off and on with the button resolves the issue

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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