Database Users

intermittent lines on screen. hard or software?

hey,
I've noticed some lines showing up on my screen... they only show once every 10/15 min and run across the vritical when in landscape mode. typically only one or two pixels thick and lasts only a moment.
Like every one my tablet takes a tumble now and again, but if it was hardware then my is it so intermittent?
any ideas?

I think this has happened to mine too but it flashes so fast that I don't know if it's happening or I'm seeing things. It's very rare though for me.
Sent from my Nexus 7 using xda premium

I get it every now and again, seems to happen when the screen has been on for a long period.
Not sure what is causing it, I tried to Google it but couldn't find anything.

It seems to be software guys, as before the 4.1.2 update I was getting these lines around 2x as often. Hopefully the next ota knocks them out for good.

I think it is WiFi reception strength related. In my case, they appear only when WiFi signal is weak. They have been there since the beginning. But now, not only vertical, some times horizontal lines appear as well. Horizontal lines didn't exist before 4.1.2 update. Same issue have I with my TF700. So, I assume it's both hardware/software related.
Sent from my Nexus 7

I never had this with stock rom but have had it with some custom roms, I had it with "slimbean 2.7" but since updating to 2.8 it has gone. So, it points to software.
Maybe megamoz is onto something too.
I don't think it is a faulty screen. Something else is going on.

I am on rooted stock, had them both before and after rooting.
Don't think it is related to the WIFI, not for me anyway, as I get it when browsing in the living room and I sit right next to my router so I get full signal.

Dudditz said:
I get it every now and again, seems to happen when the screen has been on for a long period.
Not sure what is causing it, I tried to Google it but couldn't find anything.
Click to expand...
Click to collapse
that would sound like a prime candidate for me. I have been stuck in hospital for 10 days, and the tab has been on for 15+ hours at a time some days... although the wifi angle is interesting too.
just happy its "normal" and not that I dropped it
thanks everyone for you input

Yeah I am also getting them and they seem to happen more when there is alot of white background on my screen or maybe that's when I notice them more lol but as far as problems go that's all my NEXUS7 has so hopefully it is software and can be fixed with a good old update COME ONNN 4.2 GOD BLESS YOU GUYS
Sent from my Nexus 7 using xda app-developers app

I see it everytime I use Flipboard, and also have noticed it in Maxthon occasionally. At times it flickers, and others the thin line will stay until I move to another page/screen.
Sensation, ARHD667

its software. i remember seeing a post a while back about a guy who managed to take a screenshot of it. somehow. if it was a hardware issue, it wouldnt appear on a screenshot

Washed out still after applying fix

Hey everyone, so I set smart dimmer off but it doesn't help. I turn on my tablet and it's always washed out and quite a bit of ghosting. Anyone know any way of fixing it?
Sent from my Nexus 7 using xda app-developers app

Nebuna said:
Hey everyone, so I set smart dimmer off but it doesn't help. I turn on my tablet and it's always washed out and quite a bit of ghosting. Anyone know any way of fixing it?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Same here. I sent it back. Ordered a new one a couple of weeks later from another place, same issue.
There are many articles and threads about this problem, but unfortunately Google and ASUS seem to ignore it. And even here on xda, people get defensive about their Nexus 7 and downplays the problem, attacks DisplayMate for scientifically illustrating the problem etc.
It annoys the hell out of me because I _want_ to love the Nexus 7, I _want_ to _want_ to keep it. It has great hardware, great software and even the IPS screen is great, but unfortunately the end result is a display that is seriously miscalibrated. The simplest calibration tests of black level, shadow detail, white crush and saturation and intensity (especially of the green primary) shows the major issues. Worst, it is obvious in daily use all the time.
I probably will end up sending this second Nexus 7 back as well and buy something with a half-decent visual experience.

use this:
https://play.google.com/store/apps/...S53aWRnZXRzLmJpZy50ZWdyYS5wcmlzbS50b2dnbGUiXQ..
or try a kernel which has tegra prism disabled

IINexusII said:
use this:
https://play.google.com/store/apps/...S53aWRnZXRzLmJpZy50ZWdyYS5wcmlzbS50b2dnbGUiXQ..
or try a kernel which has tegra prism disabled
Click to expand...
Click to collapse
I already have PRISM disabled. It helps a tiny bit but does not begin to solve the problem at all. Gamma, white crush, green saturation and intensity, contrast etc. still looks like something from 5+ years ago.
And there are a billion threads about this on the internet. I wish Google would take it serious, but...
http://productforums.google.com/forum/#!msg/mobile/UFOcWERdYf0/Cy-_1Kkyl7kJ

I don't know if I go lucky but when I went to safe mode and turn my device of overnight then in the morning I no longer experience this problem. Note I experienced your problem for 3 months and just yesterday the issue was resolved simply by doing what I stated. Good luck let me know what happens
Sent from my Nexus 7 using xda app-developers app

Does anyone else have a misaligned touch screen?

Is anyone else having a slight misalignment on the touch screen?
For me touch is shifted about a millimeter or two to the right.
I've checked on both my N4 and my sister's N4 and both of us seem to be having this slight misalignment.
Both of us have REV 11 N4's. One was obtained through T-Mobile in January, the other was obtained through Google Play just last month.
I've checked on a few roms. I've tried CM, PA, and Stock with a multitude of different kernels (Franco, Faux, Trinity, CM, and stock).
To check:
1. Enable "Show touches" under the Developer menu.
2. Touch a part of the screen where you'll be able to see the touch bubble and hold it there.
3. Look at the screen at angle to see under your finger.
It's not a big deal, just something I've noticed when I had difficulty trying to use PIE on the left side of the screen. Although, I still would love to be able to get the screen recalibrated to have more accurate touch sensitivity to eliminate the difficulty that I have with CM's PIE.
Another question: Is anyone aware of any LG diagnostic tool to calibrate the screen? I remember back on the HTC sensation there was a file that you could load through HBOOT and get your screen calibrated from there.
Photo attached.

Oh wow I never noticed this , I have the same thing, never really had problems with it
Btw I have an older model , so its not just a Rev11 thing
Sent from my Nexus 4

Mine looks like its right on when I test. Maybe just a hair over to the right but nowhere near as far off as yours. Rev11 302K
-Sent from that.... you know.... thing that sends these things-

I'm pretty sure you have OCD. So, take some medicine. Your phone is fine, stop crying. :crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::good:

Nope...

I thought I was just trippin when I noticed the same thing last week
Just tested and confirmed, pretty significant misalignment by about 1 cm, which is a LOT when you're talking about a <5" touch screen..
My next thought is, is this a software issue?
We need more people to test and confirm. But I believe that is what we will find. Software issue.
Anyone with a Nexus 7 on stock 4.2.2, please also test and report.

Wow never thought anyone else was experiencing this, mine seems to be off since I always have to touch a little higher than what I'm going for even nav bar.
Sent from my Nexus 4 using xda premium

Notified the same thing while playing Draw Something, I thought I was mad
Tapalked with my iNexus 4S

Nobody tested a Nexus 7 yet?
I'll test my wife's when I get home and post the results

Could not reproduce the issue on the Nexus 7. Looks like it's specific to the Nexus 4
Sent from my Nexus 4 using xda premium

ingenious247 said:
I thought I was just trippin when I noticed the same thing last week
Just tested and confirmed, pretty significant misalignment by about 1 cm, which is a LOT when you're talking about a <5" touch screen..
My next thought is, is this a software issue?
We need more people to test and confirm. But I believe that is what we will find. Software issue.
Anyone with a Nexus 7 on stock 4.2.2, please also test and report.
Click to expand...
Click to collapse
I would think that it's a software issue. My HTC sensation was able to have it's screen recalibrated. I think LG would have some kind of tool to be able to do it.

Same exact issue here but I wouldn't even notice if I didn't try
Sent from my Nexus 4 using xda app-developers app

For me its OK all stock

Mines fine, right where it should be.

This is with me too and cannot use the letter "cue" because of it
Sent from my Nexus 4 using Tapatalk 2

Screen flickering in direct sunlight?

Hello,
I picked up my GS4 about a week ago but haven't really used it in direct sunlight until today. I was outside, and the sun was shining brightly on the screen. Home screen was fine, and darker images were ok, but if I were to go to an app with a primarily white background, or open up something which used the keyboard (texting) the screen would flicker pretty noticeably. Brightness is all the way up, and auto tone was off.
Has anyone else seen this?

yup this is normal esp when using the keyboard.
Im not sure if it will be fixed.
orlandoxpolice said:
Hello,
I picked up my GS4 about a week ago but haven't really used it in direct sunlight until today. I was outside, and the sun was shining brightly on the screen. Home screen was fine, and darker images were ok, but if I were to go to an app with a primarily white background, or open up something which used the keyboard (texting) the screen would flicker pretty noticeably. Brightness is all the way up, and auto tone was off.
Has anyone else seen this?
Click to expand...
Click to collapse

richard371 said:
Im not sure if it will be fixed.
Click to expand...
Click to collapse
I guess my question is, is this a hardware issue with many GS4's or a minority. I came across a thread on the Tmobile GS4 forum where people were experiencing it, but it seems not everyone is.

orlandoxpolice said:
I guess my question is, is this a hardware issue with many GS4's or a minority. I came across a thread on the Tmobile GS4 forum where people were experiencing it, but it seems not everyone is.
Click to expand...
Click to collapse
I actually noticed for the first time today too..
Sent from my WICKED AT&T S4 i337

Its a hardware thing, but also its only in touchwiz so a developer might be able to turn it off so to speak.
It adjusts the color and tone no matter what to save the display from overheating and or burning in...
Does it a lot and I notice it cause im weird about those kinds of things.
If you use CM 10.1 or AOKP its gone.

ive made some progress with the RGB light meter on this; hoping a friend can write up some code so we can test out a 'smoothed out' transition and sampling rate and one that is sped up, averaged faster, but will take up more CPU and RAM and battery but more accurate.

here is another thread regarding it:
http://forum.xda-developers.com/showthread.php?t=2280715
http://forum.xda-developers.com/showthread.php?t=2284726
Maybe if someone who is using CM10 or AOKP could test it to see if it is a software issues and not a hardware issue?
edit: slade and jet replied while I was writing this...thanks for the info. looks like it is touchwiz related.
edit2: just went out in the sun again to test a lot of different options in the display settings (which none worked) but is seems it is only happening when the keyboard is enabled. I am using swiftkey.

yeah TW and that sensor communicate; i believe the sensor itself probably works better ALONE, but TW changes it and throttles it for either battery or screen safety.
It is always dependent on what is being pulled up on the screen, though it can be mitigated quite a bit if you disable all power saving and screen auto features, and leave brightness under 80% or so.

yea anything under 80% in direct sun is basically black. all power saving and screen auto modes were disabled. i covered up all of the sensors too and it still flickered....

orlandoxpolice said:
yea anything under 80% in direct sun is basically black. all power saving and screen auto modes were disabled. i covered up all of the sensors too and it still flickered....
Click to expand...
Click to collapse
Not just a sensor thing per-say.
It's hard to explain, they most likely did it because they didn't want the amoled to burn in.
Its the same reason why the brightness goes up another 34% or so on auto above the max brightness. Only uses it when needed to save the screen and battery.
Does it on youtube too btw, bring up a video on wide screen then tap it and you'll see the drastic color shift

I noticed this thing when I got my phone also. I thought I was just imagining it but I guess it's an actual problem

geoldr said:
I noticed this thing when I got my phone also. I thought I was just imagining it but I guess it's an actual problem
Click to expand...
Click to collapse
'its not a problem, its a feature'
-Steve Jobs
Seriously its about power handling/battery saving and white balance, but its noticeable, and annoying.

Slade8525 said:
'its not a problem, its a feature'
-Steve Jobs
Seriously its about power handling/battery saving and white balance, but its noticeable, and annoying.
Click to expand...
Click to collapse
Yep, looking into a whole bunch of stuff, just installed ubuntu so maybe I can compile something; gonna look deep into the framework.

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jetlitheone said:
Yep, looking into a whole bunch of stuff, just installed ubuntu so maybe I can compile something; gonna look deep into the framework.
Click to expand...
Click to collapse
Thanks, let me know if you figure anything out.

Open camera in direct sun and it flickers too..
Sent from my SGH-M919 using xda app-developers app

This is so annoying. Does anyone on touch wiz not experience this?
Sent from my SAMSUNG-SGH-I337 using xda premium

orlandoxpolice said:
This is so annoying. Does anyone on touch wiz not experience this?
Sent from my SAMSUNG-SGH-I337 using xda premium
Click to expand...
Click to collapse
No that's not possible, its hard coded into touchwiz, this isn't a bug or anything...
If people say they don't have it; they're not noticing it.

jetlitheone said:
No that's not possible, its hard coded into touchwiz, this isn't a bug or anything...
If people say they don't have it; they're not noticing it.
Click to expand...
Click to collapse
Gotcha
Sent from my SAMSUNG-SGH-I337 using xda premium

Thought my eyes were going crazy. Mine does this too. It even did it once under some fluorescent lights. It's not annoying enough to matter but it would be cool if it gets fixed.

Dimming the display to reduce over heating?

Alright so I just got my Note 3 here in Canada (SM-N900W8) and whenever I download an app from the Play store, or do anything I would normally do on a S4 or HTC One, the phone lowers the screen brightness (usually keep it on full brightness). When I go into Settings > Display > Brightness, it says something along the lines of to ensure your phone doesn't over heat, your phone's brightness has been lowered. Now, I've noticed this happen a handful of times, and I'm wondering if anyone else is having this problem?

I don't think the phone should be doing that over simple task like downloading apps. Might want to take it back asap and exchange for a new one.

danv28 said:
Alright so I just got my Note 3 here in Canada (SM-N900W8) and whenever I download an app from the Play store, or do anything I would normally do on a S4 or HTC One, the phone lowers the screen brightness (usually keep it on full brightness). When I go into Settings > Display > Brightness, it says something along the lines of to ensure your phone doesn't over heat, your phone's brightness has been lowered. Now, I've noticed this happen a handful of times, and I'm wondering if anyone else is having this problem?
Click to expand...
Click to collapse
Yes, mine is doing the same exact thing. When it first started happening, I thought there was something wrong with this particular phone but then I saw that same message. It's annoying have the screen change brightness like that.

I notice when browsing web page it does it too.. can anyone else confirm? Test by turning your brightness all the way, then download a few apps and browse the web. Let me know.

same experience
Hi! Very new at this forum. Just searched the net because of the same problem. The screen keeps dimming even if im using it. I thought it was a problem so I had my unit replaced. I have a new one now but it still does the same thing. It still dims randomly. Now I dont know if I should have another replacement or if this is normal.
danv28 said:
Alright so I just got my Note 3 here in Canada (SM-N900W8) and whenever I download an app from the Play store, or do anything I would normally do on a S4 or HTC One, the phone lowers the screen brightness (usually keep it on full brightness). When I go into Settings > Display > Brightness, it says something along the lines of to ensure your phone doesn't over heat, your phone's brightness has been lowered. Now, I've noticed this happen a handful of times, and I'm wondering if anyone else is having this problem?
Click to expand...
Click to collapse

I think the dimming may be caused by settings>device>display>auto adjust screen tones. And/or screen mode check anything but adapt mode. .. That solved it for me.
Sent from my SAMSUNG-SM-N900A using xda app-developers app

c-mack said:
I think the dimming may be caused by settings>device>display>auto adjust screen tones. And/or screen mode check anything but adapt mode. .. That solved it for me.
Click to expand...
Click to collapse
This fix it for everyone? Kinda nervous about this....

It won't hurt anything, it's just a device setting. You can always change it back. ..
Sent from my SAMSUNG-SM-N900A using xda app-developers app

I was having this same issue so I turned off the smart view eye thing and so far no change to the brightness at all so im hopeing thats what it was .
Sent from my SAMSUNG-SM-N900A using xda app-developers app

This is kind of scaring - because the Galaxy MEGA has the very same problem (just google it or check the mega forum here on xda).
Gesendet von meinem GT-I9505 mit Tapatalk 4

brooon said:
This is kind of scaring - because the Galaxy MEGA has the very same problem (just google it or check the mega forum here on xda).
Click to expand...
Click to collapse
And here's the link to that thread... http://forum.xda-developers.com/showthread.php?t=2382134

I haven't got the Note 3 yet partly because of this. When I compared my Note 2 to the Note 3 in the At&t store I noticed the Note 3 was definitely not as bright, while being obviously bluer. But I also caught it dimming itself too, very quickly but couldn't get it to reproduce the behavior. Changing the display mode didn't affect any of this. I've wanted to see this amazing improved display everyone talks about but I haven't seen it yet - certainly not when the brightness is set manually.
I wonder if this dimming display thing is a new normal, that they've made the brightness more an automatic control now. I have no idea if this is to save battery (but then why not let the user choose) or if these new screens need to be protected more from overheating.
Sent from my SAMSUNG-SGH-I317

What's the point of full brightness if it's going to auto-dim all the time? I ended up returning my Galaxy Mega for this very reason.
Brgds... /Tubgirl

What parts of the phone heats up? Mine is near the camera. But I havent had this message yet on my note but it does get fairly hot alot. I dont even do anything for it to heat up this much. Just browse around and dont play much games.
Sent from my SM-N900T now Free

Make sure that the setting under display called "Auto adjust screen tone" is not selected.
Sent from my Nexus 7 using XDA Premium 4 mobile app

I have auto-tone off, the eye tracker off, adaptive display off, brightness in browser all the way up.. still happens.. the message is displayed when you go to adjust the brightness.. interesting to see i'm not the only one with this issue

Does it only happen after heavy use or what?

Also happen on my s4...verry annoying samsung
Sent from my GT-I9500

riyoshadqi said:
Also happen on my s4...verry annoying samsung
Sent from my GT-I9500
Click to expand...
Click to collapse
I have the same problem, i have started a thread
http://forum.xda-developers.com/showthread.php?t=2475017
I have absolutely everything turned off!! It is stupid and annoying and i am returning my phone because of it
BTW this is my second device in 4 days!

Keepingitrealz said:
I have the same problem, i have started a thread
http://forum.xda-developers.com/showthread.php?t=2475017
I have absolutely everything turned off!! It is stupid and annoying and i am returning my phone because of it
BTW this is my second device in 4 days!
Click to expand...
Click to collapse
I'm on my third... and posted already in your thread! for me this throttling happens all the time, gallery indexing for example triggers it a lot!
to clarify:
this throttling has nothing to do with settings a user can adjust, it's logic must be kernel implemented! no auto-contrast setting would help! and it happens even when you are on manual lowest brightness. on my devices the screen would switch even then in a cycle of ca. 20s between a additionally dimmed and the set state...
Sent from my SM-N9005 using XDA Premium 4 mobile app