Horizontal lines lg g2 screen - G2 Q&A, Help & Troubleshooting

Hi I just got my new LG G2 about a week ago, but I noticed there are these small barely visible horizontal lines across the screen, but they only appear in certain applications, specially when there's text or white objects contrasting darker backgrounds, lines appear to come from the text and or objects and extend thru them like the objects are sending them sideways is very weird, immediately I thought the screen came bad but I've been thinking it could be a software issue because as I said, most of the time they are nowhere to be seen like in the lockscreen or when playing games, in those screens the display just look gorgeous and has no issues, its only in certain occasion that you can see them, has this happened to anybody else and do u have any idea on how to fix it with software? or is the display just bad and I have to return the phone? I imported it so it would be a real pain to send it back for a refund.
EDIT: apparently I cant upload images larger than 256kb WTF? the last time I took a 256kb picture was in 2005...

Related

faint lines on white screen w/ text in portrait anyone else PLEASE check

Just wondering if anyone else is seeing this same problem. When on a white screen like a Google search or aldiko, where the text is displayed portrait mode to the left and right of where text is displayed there are like faint bleed lines where the text is displayed. I tried with brightness all the way up and for the most part they go away but around 50% brightness if you look closely I can see it. Do any of you see the same thing. Just wondering if the amoled screens are like that the Samsung behold II is like that. But godly enoguh in landscape I don't see it. Just portrait. Just hoping nothing is wrong with my cool new phone.
Here are 2 pix of what I see
http://tauruspc.net/pix/1.jpg
http://tauruspc.net/pix/2.jpg
And a better one. Just look to the left and right
http://tauruspc.net/pix/3.jpg
I *JUST* answered your question on google support lol
I have the same thing but mine is definatly not that easy to see.
I just checked and i cant see what youre talkin about so i guess my answer is no
Talk about ironic timing. Weird will look then. And the weird thing is on xda page I don't see in Google support I do. LOL.
Also, I am using Dolphin Browser not default so that may be in play I'm not sure, try downloading it and see if you have the same problem maybe.
Yeh I will do that mainly seems with just black on white portrait mode like Google support. Not xda though.
Wonder if it has to do with power consumption. It takes more power to display white pixels. With the black on the same line maybe those lines with text are consuming less power on the line making the rest of the LEDs on that line of the matrix receive more power, making them brighter?
I tried for about 10 minutes to make that as unconfusing as possible lol
Makes sense. Weird only on portrait not landscape. but just spoke with HTC and they say that haven't heard of any problems like that and can send this in get a problems like that and can send this in get a temp one while they fix it and then switch around again
haven't seen much improvement setting manual brightness either.
I get the same thing, I think it is simply a scaling artifact. When you double tap to zoom the lines are no longer visible.
You can see this effect in the boot loader, but only adjacent (the right of) to where there is text at the left. if you look down where there is no text, and just white space, the ghosting lines across the white are not present.
either way, doesn't really bother me, you really have to look for them to see them.
Yeh double checking I see it there too. So yeh just not me then. Probably just amoled tech. the kind of blinky static lines is what bugs me. Don't happen that often and still kind of have to look to see those but since I have been using heavily since I got it about every 4- 5 hours I see where it gets like static lines horizontally about one pixel think blinky faintly in random spots all over the screen but kindof like static or noise from chip shielding or bad power frequency.

Picture resize...

hi guys, when i goto crop my pics, they crop fine, but im left with a tiny picture..
how do i resize the pic to full screen...
this is one of the biggest problems about the x10,i have loads of pictures but most come out all small or fuzzy using the crop,why se didnt just allow full screen wallpaper is beyond me,however there are a few apps in the store that allows full screen wallpapers however must force close a lot and piece of advice dont use justpics it freezes the phone completely i learned it the hard way,if you find a better way to use full pics as wallpaper please let me know thanks
Bloody JOKING...
Yeah it seems there's some seriously dumbass software issues with the wallpaper option on the X10.
It seems there is no straight forward to way to simply select picture (either one you've take or one upload from cpu/bluetooth) and set the whole/full image as phone's background.
Cropping is forced and as far as i can tell MAX image is 2 THIRDS OF SCREEN!!

What's wrong with my screen?

Ok this is kinda bugging the me to no end. Nothing is WRONG with the screen, as this only appears in certain places.
Here's what I mean: When I start up settings, or anything that darkens the background, you can see these lines: http://imgur.com/eCELgov,yPD8mMK#0 in the first image. You would also see ripples only around the jelly beans, but you can only see it in the ES Image Viewer window in the Recent Apps. But when I go back to my homescreen, the lines disappear. And this only happens with certain parts of apps or the settings, as I changed my brightness down to low as possible, and no lines or ripples.
I'm on Rastakat 4.4.2, and this is a recently bought tablet which has been working fine so far.
EDIT: This is probably a way better example: https://www.dropbox.com/s/a3r7gz5wjlwvq92/Screenshot_2014-01-01-17-30-16.png
Duskye said:
Ok this is kinda bugging the me to no end. Nothing is WRONG with the screen, as this only appears in certain places.
Here's what I mean: When I start up settings, or anything that darkens the background, you can see these lines: http://imgur.com/eCELgov,yPD8mMK#0 in the first image. You would also see ripples only around the jelly beans, but you can only see it in the ES Image Viewer window in the Recent Apps. But when I go back to my homescreen, the lines disappear. And this only happens with certain parts of apps or the settings, as I changed my brightness down to low as possible, and no lines or ripples.
I'm on Rastakat 4.4.2, and this is a recently bought tablet which has been working fine so far.
EDIT: This is probably a way better example: https://www.dropbox.com/s/a3r7gz5wjlwvq92/Screenshot_2014-01-01-17-30-16.png
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Click to collapse
Hi, Duskye...
It's always tricky judging these things from a screenshot... but it looks like you have light bleed due to screen lift on the right hand side of the screen.
I have a little light bleed myself on my Nexus 7, though nowhere near as bad as yours. I've taken the back of my Nexus 7, and I've noticed a screw is missing that should clamp the screen tightly to the frame, and thus allowing light to bleed from underneath. It's never really been a major issue for me, as it's only really noticable when the screen is really dark.
If, as you say, your device is new, I wouldn't waste time in trying to fix it yourself... you should get a refund/repair or replacement.
Also, if you have bad screen lift, the screen itself can be prone to easy cracking/shattering as it's not tightly clamped in the frame.
Screen lift/light bleed issues where a significant problem last year (I mean 2012, I forget, it's 2014 now) when the first batches of the N7 came out... but I thought those early production problems had now been ironed out.
One thing you could try... purely as diagnostic... is download from Google Playstore any one of the many testcard apps. They run the screen through a variety of coloured background's... including black... if there is no uniformity across the screen in black, then it's almost certainly screen lift. And you have a hardware problem.
And if this is the case, you should seek redress under warranty.
Good luck.
Rgrds,
Ged.
This happens on _all_ parts of the screen, it's not just that side, and, like I said, this only happens in certain parts, like say if the jellybean wallpaper had jellybeans falling from the top, I would only see those ripples _on_ the jelly beans, and the ripples move along with the jellybeans if they were in any other postion, and no where else. And I should probably mention this: This was not apparent when I had 4.1 on this. This only started happening when I installed Kitkat.
And this is probably me being uninformed, but if this a hardware problem, then how come you are able to see the problems from a screenshot it took from the device itself?
I don't think there is anything wrong with your screen. You are seeing quantization artifacts due to the "dimming". The degree to which you observe this depends on the original image.
For instance, look at your screen on Settings...Display.
All those subtle horizontal bands at the bottom of the screen are not intentional, but due to the fact that a "gradient" painted with a limited number of values will show intensity steps at each value transition, so long as your eyes can resolve that intensity difference. And this effect is always most pronounced at low intensity values.
For instance, "grey" values always have equal R,G, and B intensities, e.g.:
RGB
000 = black
111 = grey1
222 = grey2
...
254,254,254 = grey254
255,255,255 = white
So for instance the "intensity" difference between grey3 and grey4 is
I(grey3) = sqrt(3^2 + 3^2 + 3^2) = 5.196
I(grey4) = sqrt(4^2 + 4^2 + 4^2) = 6.928
(6.928 - 5.196)/5.196 * 100 = 33%
whereas the difference in observed intensity between grey240 and grey 241 is only 0.42%
You won't notice quantization effects in bright images, but you will when the same image is dim.
@Duskye Is this a live wallpaper we are talking about? There are lots of (ahem) "optimizations" that can be made (for instance sub-sampling) which sacrifice image quality for speed, so it is reasonable to believe that a software update could change things. Did you fool with any of the rendering or live wallpaper options in Settings... Developer Options?
PS Ged: When someone takes a "screenshot", they are not literally taking a picture of the screen, but dumping color values from a framebuffer. So it is not possible to capture "bleed" with a screenshot; you would have to use an actual camera for that.
Nope, that's just the regular default jellybean wallpaper, though it does this with any wallpaper.
And the only dev options I touched were USB Debugging, nothing else.
EDIT: I installed Carbon, which latest release is Jelly Bean, and the lines are not as apparent, in fact they're all gone from settings, there isn't even any ripples anymore.
EDIT2: I took a photo with Carbon as well, and made a side by side of the Rastakat and Carbon pictures: http://i.imgur.com/bk6ElGq.png
Duskye said:
Nope, that's just the regular default jellybean wallpaper, though it does this with any wallpaper.
And the only dev options I touched were USB Debugging, nothing else.
EDIT: I installed Carbon, which latest release is Jelly Bean, and the lines are not as apparent, in fact they're all gone from settings, there isn't even any ripples anymore.
EDIT2: I took a photo with Carbon as well, and made a side by side of the Rastakat and Carbon pictures: http://i.imgur.com/bk6ElGq.png
Click to expand...
Click to collapse
Well, there you have it - it's not hardware.
There are other possibilities as well - .JPG image files are partial DCTs (Discrete Cosine Transformations) on 8x8 pixel blocks. They are "partial" in the sense that compression is achieved by dropping high-frequency coefficients of the transform in each block. While all of this is standardized in the JPG format, there is no reason why a rendering method needs to compute the full image for display using all the coefficients - in the name of rendering speed. Similarly, when you "assign" the wallpaper, I believe the source file is copied to a standard location. It is possible that it is also down-sampled at that point in time, esp. if the original image was stored as a high-quality JPG image file (little to no compression).
Anyway, you get the idea - any or all of this can be affected by the ROM build.

Graphics Artifacting

I've got a D801 (T-Mobile) and over the past month or so, I've been experiencing pretty severe graphical artifacts. It usually consists of multiple purple and green horizontal lines, about a pixel wide, all over the screen (on both the image and any accompanying text content). It is often accompanied by flickering and occasionally by screen smearing. The artifacts occur only when viewing static image content - photos, web pages with photos, apps that include pictures, background images on the lock screen - I've had no problems when playing games. It's not consistent - it only occurs maybe 30% of the time - and it's not limited to specific apps. The artifacting will also disappear if I'm on a web page and scroll past the image. I doubt this is fixable - my gut instinct is that it's a hardware problem - but I figured I'd ask here to see if anyone has a solution. I really like my G2 and am not a big fan of any of the options currently available to replace it.

Video , Photos and media quality looks washed out.

I came from an S7 EDGE and I just got my OP5 and there's something I hate about my new phone. Every photos videos on YouTube, Reddit , internet in general looks washed out. The colors are good but when you pay attention, you can see the same artefacts you see on a highly compressed video/photo. In other words, the screen looks like it's not even a 8 bit color panel. Do you guys know a solution about this? I never saw this problem on any phone ( I'm a cellphone seller in Canada ), not even on my S7 EDGE, Alcatel IDOL 3, Nexus 5
Maybe it's because it's pentile or something
You might want to change the screen calibration method under settings / display and see if that helps at all.
Unfortunately the problem is still existent. Look at the uploaded screenshot with your phone The colors on the dialer supposed to be gradient but it's not. That my problem .
yungboss22 said:
Unfortunately the problem is still existent. Look at the uploaded screenshot with your phone The colors on the dialer supposed to be gradient but it's not. That my problem .
Click to expand...
Click to collapse
The dialer looks lighter at the top and darker at the bottom--are you saying there isn't enough transition between the two or that the colors in the screenshot are inaccurate? You might want to do a search for gradient android dialers (which should have screenshots) to verify the problem is with the phone rather than with the specific app you are using. All of the gradient screenshots I pulled up looked fine on my phone but the color changes were a lot more subtle than the one you provided. It's possible you have a bad display or that it's calibrated incorrectly for some reason. I've never noticed any problems with the colors on my OP5 and never read a complaint similar to yours.
You might want to make sure Night Mode or Reading Mode aren't on in settings because both would affect the colors.
Also make sure ambient display is off to verify that isn't doing anything screwy.
Have you rooted your phone or installed a custom kernel or anything like that? Do the colors look exactly the same when you boot into safe mode?
I see the banding in the dialer (the background where the dialpad is). Given that it's a screenshot though, that part is likely to be how OnePlus designed the dialer app (screen issues wouldn't show up in a screenshot).
Sent from my ONEPLUS A5000 using Tapatalk

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