[Q] Im curious to see... - AT&T Samsung Galaxy S II SGH-I777

It seems like I have seen multiple threads about physical defects with the phone, i just thought i would throw up a poll to see which side weighs more because I feel sorry for all those with physical defects since I feel like my phone has been great.
Before I end this post im going to suggest that the viewing the phone from a 90 degree angle and seeing the blueish/greenish tint is not a defect. to me it seems more of a effect from samsungs amoled screen (please correct me if im clearly wrong)

n1nj4dude said:
It seems like I have seen multiple threads about physical defects with the phone, i just thought i would throw up a poll to see which side weighs more because I feel sorry for all those with physical defects since I feel like my phone has been great.
Before I end this post im going to suggest that the viewing the phone from a 90 degree angle and seeing the blueish/greenish tint is not a defect. to me it seems more of a effect from samsungs amoled screen (please correct me if im clearly wrong)
Click to expand...
Click to collapse
So far, I have no complaints or defects, but I do have the weird greenish tint.

The only thing i've noticed so far is I get a green tint only if I don't have the phone perfectly straight to my eyes. If you turn it any way it starts to turn green. I can just barely turn it and it starts turning colors.

Related

Screen problem: slightly visible moire-effect like pattern

I bought this phone 2 days ago, new, sealed, free from contract, and so far I love everything about it, except for this problem which I have found only today. I guess It was all the first excitement keeping me to notice earlier.
Like the thread's title says, it's like a perfect pattern across the screen, from edge to edge, consisting in perfect parallel 10-degrees-from-horizontal-oblique stripes. They are very very subtle and only visible on light backgrounds and more from looking from the upper part of the screen down.
Do not confuse them with the pixels matrix, whose density, by the way, is great. They are all right, and the effect described above seems to appear on a layer which is on top of those pixels.
To make an almost perfect comparison, this effect looks almost like the striped background from market.android.com (as seen on a computer), but with more subtle greish on white stripes inclined from right to left, and only like 10 degrees oblique from the horizontal. That is what's making me curious, why is that pattern oblique? If it were straight horizontals or verticals I would have confused them with the pixels arrays, and it would have been bearable. But like they are I can't stop but notice this pattern every time and it annoys me a lot! In GMail, Browser etc... all the apps with plain backgrounds...
It wouldn't appear on any close picture I tried to take, and I guess filming for you to see it isn't a good idea either, because you won't notice it. It's only visible with the naked eye, at a distance closer than 30 cm from the screen. It isn't also a problem of my eyes, because my wife is noticing it too.
Thank for any shared thought.
stnel said:
I bought this phone 2 days ago, new, sealed, free from contract, and so far I love everything about it, except for this problem which I have found only today. I guess It was all the first excitement keeping me to notice earlier.
Like the thread's title says, it's like a perfect pattern across the screen, from edge to edge, consisting in perfect parallel 10-degrees-from-horizontal-oblique stripes. They are very very subtle and only visible on light backgrounds and more from looking from the upper part of the screen down.
Do not confuse them with the pixels matrix, whose density, by the way, is great. They are all right, and the effect described above seems to appear on a layer which is on top of those pixels.
To make an almost perfect comparison, this effect looks almost like the striped background from market.android.com (as seen on a computer), but with more subtle greish on white stripes inclined from right to left, and only like 10 degrees oblique from the horizontal. That is what's making me curious, why is that pattern oblique? If it were straight horizontals or verticals I would have confused them with the pixels arrays, and it would have been bearable. But like they are I can't stop but notice this pattern every time and it annoys me a lot! In GMail, Browser etc... all the apps with plain backgrounds...
It wouldn't appear on any close picture I tried to take, and I guess filming for you to see it isn't a good idea either, because you won't notice it. It's only visible with the naked eye, at a distance closer than 30 cm from the screen. It isn't also a problem of my eyes, because my wife is noticing it too.
Thank for any shared thought.
Click to expand...
Click to collapse
Much better to send you're mobile to the store were you bought it. because as what i have know the problem is the LCD. that is what they called wire stripe or ribbon.... maybe that is the problem. Try it, there is noting to lose.....
I see that too, only on light (white) backgrounds. I thinks it's normal, you may ask your local Sony Ericsson customer service or a phone shop, but I don't think this is a production fault.
On a dark blackground it is purely invisible.
Try it with and without the Bravia engine enabled.
kirbygonzalo said:
Much better to send you're mobile to the store were you bought it. because as what i have know the problem is the LCD. that is what they called wire stripe or ribbon.... maybe that is the problem. Try it, there is noting to lose.....
Click to expand...
Click to collapse
kirbygonzalo, thanks but even googling it I couldn't find anything about wire stripe or ribbon.
sdk16420 said:
I see that too, only on light (white) backgrounds. I thinks it's normal, you may ask your local Sony Ericsson customer service or a phone shop, but I don't think this is a production fault.
On a dark blackground it is purely invisible.
Click to expand...
Click to collapse
sdk16420, thanks for sharing this, It is somehow a relief for me to know I'm not alone in this. Yet, I'll wait until next week to see if I can find more explanations, and then maybe I'll return it for a replace. It's especially bad for me, as I waited a lot to receive the silver one (a week or so), and I don't know if I can find another.
LenAsh said:
Try it with and without the Bravia engine enabled.
Click to expand...
Click to collapse
It doesn't depend on Bravia Engine, unfortunately. It was also the first thing that came into my mind, tried it several times, even with deactivating and rebooting, but the effect is persistent.
Again, it's only visible on light backgrounds, especially white and large ones (browser, gmail, etc). If you read this, please check yours also find some time to post a reply with the result. I would be very grateful.
Thanks!
I have the blue model but i can barely see that pattern with a screen flashlight (on full white) and i don't find it annoying at all in daily use of the phone.
You can check the screen from a new phone in a shop, to see if it looks like yours ... or you have a eagle eye
PS
check softpedia also
I think I can see what you're talking about on my Red Neo but only if I max the screen brightness and look really closesly (like practically inserting the Neo into my eye). 99.99% of the time I don't notice a thing.
I just followed your description and found the same with my neo, so I think it the LCD design. Not an issue to me indeed.
Does anyone have another phone model (e.g. Samsung, HTC) with a LCD touchscreen? Is it also visible on other phones?
sdk16420 said:
Does anyone have another phone model (e.g. Samsung, HTC) with a LCD touchscreen? Is it also visible on other phones?
Click to expand...
Click to collapse
I have a Samsung Galaxy S with SAMOLED, a HTC Desire with S-LCD and an Asus Transformer with IPS LCD, and they all have better screens. The Desire's is the most problem free, whereas the Galaxy S has problems with screen burn-in (or image retention, like some are identifying it, but for me it's still like the old good plasma screen burn-in ), and the Transformer's has light bleeding. But, like I said, when put aside, the Neo's looks the worst.
I don't know if you noticed it already, but it comes with another "feature" that is so annoying: it stays always on auto brightness regardless of the custom level set, maxing that automation on that custom level. It's so annoying, cause it's always too dark for me, and being a "feature" it doesn't have also a switch for that. At least it has for Bravia....
stnel said:
I have a Samsung Galaxy S with SAMOLED, a HTC Desire with S-LCD and an Asus Transformer with IPS LCD, and they all have better screens. The Desire's is the most problem free, whereas the Galaxy S has problems with screen burn-in (or image retention, like some are identifying it, but for me it's still like the old good plasma screen burn-in ), and the Transformer's has light bleeding. But, like I said, when put aside, the Neo's looks the worst.
I don't know if you noticed it already, but it comes with another "feature" that is so annoying: it stays always on auto brightness regardless of the custom level set, maxing that automation on that custom level. It's so annoying, cause it's always too dark for me, and being a "feature" it doesn't have also a switch for that. At least it has for Bravia....
Click to expand...
Click to collapse
When I put brightness on 100%, and hold my finger on the light sensor, I don't see the screen getting darker. What does annoy me is that you can't make the brightness less than about 30%. I use widgetsoid for brightness adjustment, and the screen will only become darker than 30% if I hold my finger on top of the sensor. That sucks. I I want to sacve energy, I have to hold my hand there, while using the phone.
I don't see why people need the brightness that high anyways, aside from in some games with small hard to see details I'm perfectly fine with my brightness set at just 30% or even just 20%...heck I can still use the phone when the brightness is completely off though that does get a little hard to see everything.
SCHUMI_4EVER said:
I don't see why people need the brightness that high anyways, aside from in some games with small hard to see details I'm perfectly fine with my brightness set at just 30% or even just 20%...heck I can still use the phone when the brightness is completely off though that does get a little hard to see everything.
Click to expand...
Click to collapse
I use it a lot outside, and its sunlight legibility isn't as good as SAMOLEDs or others, but that I knew from reviews before the buy. If it wasn't for the problem in this thread, I wouldn't be so harsh on it.
LE I se new posters here. Do you noticed the problem described in the first post? Does it bother you?

[Q] White Glow on Dark Screen

I just got my refurbed Tab yesterday. I've owned many tablets over the last year, but I've never experienced a soft kind of glowing effect on dark parts of the screen (like in a dark scene in a video, or even the bottom control bar) when viewed at any angle at all. The image almost becomes difficult to see unless you're looking straight ahead. I only notice this when there's little to no ambient light in the room (which is when 90% of my tablet usage is- reading or watching a movie in bed).
I compared with my touchpad in the same scenario and while there was a *very* slight glow, it wasn't nearly as bad as on the gt 10.1.
I found next to nothing on Google about this. Does anyone else get this, or do I possibly have a bad refurb? It's a shame because I'm completely in love with it otherwise...
neags23 said:
I just got my refurbed Tab yesterday. I've owned many tablets over the last year, but I've never experienced a soft kind of glowing effect on dark parts of the screen (like in a dark scene in a video, or even the bottom control bar) when viewed at any angle at all. The image almost becomes difficult to see unless you're looking straight ahead. I only notice this when there's little to no ambient light in the room (which is when 90% of my tablet usage is- reading or watching a movie in bed).
I compared with my touchpad in the same scenario and while there was a *very* slight glow, it wasn't nearly as bad as on the gt 10.1.
I found next to nothing on Google about this. Does anyone else get this, or do I possibly have a bad refurb? It's a shame because I'm completely in love with it otherwise...
Click to expand...
Click to collapse
Is it coming from the sides? If so, it's LCD screen bleed. It unfortunately happens with backlit LCD panels. It doesn't appear to be too common with the Tab as I haven't seen it mentioned before. I'd send it in for repair while it's under warranty. They changed the screen design in October and you'll get it back with a better display then it has currently.
Please use the Q&A Forum for questions Thanks
Moving to Q&A
No, it's not from the sides. There's no bleeding. It's on the screen itself. It's almost like kind of a ghostly white glow on top of the dark colors on the screen. A shimmering effect, maybe? I'm not sure how else to describe it.
neags23 said:
No, it's not from the sides. There's no bleeding. It's on the screen itself. It's almost like kind of a ghostly white glow on top of the dark colors on the screen. A shimmering effect, maybe? I'm not sure how else to describe it.
Click to expand...
Click to collapse
if possbile post the screenshot.
Hm. I guess i'm not explaining it well.
While it is on the screen itself, it's only when you tilt the device to the viewing angle isn't straight on.
Here's a thread from a different forum discussing it:
http://hardforum.com/showthread.php?t=1546595
There are also youtube videos showing it, like this one:
http://youtu.be/-eA2IjlotJU
I just compared my G-Tab with an ASUS Transformer, and it was still there on the Transformer, but not as bad as the G-Tab.

Weird spots underneath the screen?

Some time ago I noticed that, in some very special situations, like under direct and strong artificial/sun light and a particular angle, I'm able to see a couple of small, very faint spots, kinda similar to those left by dried moisture (like a drop of water) underneath the screen. At first I though it was my bad for putting on a wet screen protector, but just the other day I had a look at the device of a friend of mine (no protector wahtsoever), and looking closely I found similar spots, just not two but a single and bigger one. This got me a bit puzzled, so I decided to take a look at a third device, this time a demo unit in a shop, and guess what? Also that one had a similar mark right in the middle of the screen.
Now, not that this bothers me much, since you can't actually see it unless you really try (I can't even catch it with a camera), but I'd love to know from you guys if this is a common "flaw" or I just happened to grab a "flawed" handful of devices...
Yup, I have these dark patches. You can see them sometimes if you look at a particular angle when the phone is booting up. I can't see them any other time though
I can see dark patches when the screen is dimmed, especially at night, I can't see it any other times, Nokia returned it to me because they couldn't see it. So they asked to send it in again, it took them ten days to just flash a ROM....I was pissed as it is.
When the Display is off I can sometimes see some "blacker" areas on the screen. According to Nokia These are splices where the glass is somehow glued to the display.
Thank you guys, at least I feel a little better about it now...anyway it still puzzles me how this is the first device I own in years with this kind of issue, and I really had many, both resistive and capacitive, with or without gorilla and even made of plastic. I mean this isn't really a flaw, but knowing it's there annoys me. Damn, maybe I should really just stop being so OCD with my devices, it hurts
vnvman said:
Thank you guys, at least I feel a little better about it now...anyway it still puzzles me how this is the first device I own in years with this kind of issue, and I really had many, both resistive and capacitive, with or without gorilla and even made of plastic. I mean this isn't really a flaw, but knowing it's there annoys me. Damn, maybe I should really just stop being so OCD with my devices, it hurts
Click to expand...
Click to collapse
I still would class it as a fault, it makes my eyes burn.
Are you speaking about the spots which are visible in the dark if the screen is black?
I saw them when I did my screen black in diagnostics app - lcd test.
So I took a picture of "black" screen with long exposure (iso 400, 30 seconds exposure) and show it in nokia care service. Week after I got new display
load"" said:
Are you speaking about the spots which are visible in the dark if the screen is black?
I saw them when I did my screen black in diagnostics app - lcd test.
So I took a picture of "black" screen with long exposure (iso 400, 30 seconds exposure) and show it in nokia care service. Week after I got new display
Click to expand...
Click to collapse
Actually those aren't really "spots", it's some sort of light leak that all amoled devices have when displaying plain black: even if all the leds are supposed to be off there's still some electricity going through them. I had that on all of my amoled devices, on my Desire, on my SGS2 and on my Omnia W as well, it doesn't look that great but it's fine I guess. Weird that you still managed to get the screen replaced, maybe your unit actually had some excessive light leak.
Here I'm talking about a different thing, given that you have them you should be able to see those spots I described even with the device completely off if you keep it under a strong light and at the right angle.
vnvman said:
Actually those aren't really "spots", it's some sort of light leak that all amoled devices have when displaying plain black: even if all the leds are supposed to be off there's still some electricity going through them. I had that on all of my amoled devices, on my Desire, on my SGS2 and on my Omnia W as well, it doesn't look that great but it's fine I guess. Weird that you still managed to get the screen replaced, maybe your unit actually had some excessive light leak.
Here I'm talking about a different thing, given that you have them you should be able to see those spots I described even with the device completely off if you keep it under a strong light and at the right angle.
Click to expand...
Click to collapse
Can't reproduce that. I look closely but see nothing special.
Though, as Russian proverb says - the less you know the stronger you sleep
Here is a picture of screen with the spots I was posting about.
So, if anyone have scratched screen as I had, it is a good reason to get repair
PS note that picture was taken with long exposure. Actually my eyes need to get used to darkness to see glow.
load"" said:
Can't reproduce that. I look closely but see nothing special.
Though, as Russian proverb says - the less you know the stronger you sleep
Here is a picture of screen with the spots I was posting about.
So, if anyone have scratched screen as I had, it is a good reason to get repair
PS note that picture was taken with long exposure. Actually my eyes need to get used to darkness to see glow.
Click to expand...
Click to collapse
Yeah that's it, the good old light leak
Anyway the picture you took being overexposed gives the impression of a huge issue, so I guess they replaced the screen right after looking at that, even tho in normal darkness conditions it's definitely not so annoying. Good for you that you managed to get it replaced anyway
lol a 30 second exposure will bring out the worst of the display. I can understand they replaced it after showing that image that sort of tricks them because it will never be even close to that visible to the naked eye.
Completely normal for AMOLED displays.

Severity of lightbleed

On the seperate one tick whether or not you have it. Personally I can spot mine in normal usage at some auto brightness levels. I know that a lot of this will fall under personal opinion, but I would like to hear what people think.
This thread is pretty pointless. The severity is going to be everyone's opinion. There is no set way to measure it without comparing all the devices. And taking pictures of the device is a bad way to measure it because light bleed is amplified horrendously on a camera. Personally, I don't think the light bleed on my N10 is bad at ALL, possibly because I'm somewhat used to it due to my monitor having it.
Nitemare3219 said:
This thread is pretty pointless. The severity is going to be everyone's opinion. There is no set way to measure it without comparing all the devices. And taking pictures of the device is a bad way to measure it because light bleed is amplified horrendously on a camera. Personally, I don't think the light bleed on my N10 is bad at ALL, possibly because I'm somewhat used to it due to my monitor having it.
Click to expand...
Click to collapse
Perhaps, but I would like to see how bad people think their light bleed is. Personally I have compared it to several other of my devices (galaxy tab 2 7.0, ipad 2, galaxy player 5.0) and none of them have it this bad.
If I stare at the bottom right corner, on a completely black screen, with max brightness, I can notice slight bleed. Looking at the same corner under any other conditions and I can't make out any bleed lol.
If I stare at the bottom right corner, on a completely black screen, with max brightness, I can notice slight bleed. Looking at the same corner under any other conditions and I can't make out any bleed lol.
Click to expand...
Click to collapse
Idk, this makes we want to send mine back and try for another, but I don't want to do that and get a worse one back. I can see mine at 100 percent brightness and if I stare at it I can pretty easily see it under normal conditions. My friend couldn't see it for like 20 minutes though, so maybe I am just crazy. With that said he can spot it pretty easily now.
tcb4 said:
Idk, this makes we want to send mine back and try for another, but I don't want to do that and get a worse one back. I can see mine at 100 percent brightness and if I stare at it I can pretty easily see it under normal conditions. My friend couldn't see it for like 20 minutes though, so maybe I am just crazy. With that said he can spot it pretty easily now.
Click to expand...
Click to collapse
If it's going to be a concern in the long run, I might suggest just returning it.
Currently, I have a multi-touch issue with my screen that doesn't seem to like when I use more then 3 fingers at random times. Although the chances of me using more then 3 fingers is... extremely rare; it does sort of bother me a bit lol. But then again, aside from that, and the very minor bleed I have, everything else seems fine... hmm
espionage724 said:
If it's going to be a concern in the long run, I might suggest just returning it.
Currently, I have a multi-touch issue with my screen that doesn't seem to like when I use more then 3 fingers at random times. Although the chances of me using more then 3 fingers is... extremely rare; it does sort of bother me a bit lol. But then again, aside from that, and the very minor bleed I have, everything else seems fine... hmm
Click to expand...
Click to collapse
Ha ha, almost seems like a best of the worst sort of thing. If it doesn't have one issue it has another. Also the cable they sent me doesn't charge the tablet, I have to use the one that came with my sgs3.
Good to see that the majority has none. Just ordered a new unit. We shall see how this turns out.
My option is not there. Only visible on the start up screen and only when the auto brightness adjusts. They could probably just fix mine by disabling auto brightness on boot up and there would be no way I can see it. Lol
For the people that said they don't have any:
When did you order and is this your first unit?
I'm not sure if mine really counts as light bleed. Since playing with it for a couple of hours I've only noticed two small spots on the very bottom about the width of my small finger. I need to have brightness set to about 60% and a completely dark background to really see it. During normal use with auto brightness on I don't notice it. Is it really possible to get zero light spots in all conditions with these screens?
Jadefalkon said:
I'm not sure if mine really counts as light bleed. Since playing with it for a couple of hours I've only noticed two small spots on the very bottom about the width of my small finger. I need to have brightness set to about 60% and a completely dark background to really see it. During normal use with auto brightness on I don't notice it. Is it really possible to get zero light spots in all conditions with these screens?
Click to expand...
Click to collapse
That's still light bleed, but I can see mine all the time. It sounds minor.
So far not so good. 14 people don't have light bleed and 15 people do.
I ordered mine 5 minutes after they went on sale. No light bleed.
Well I called for an RMA. Before the csr put it through, I got assurance that should the replacement have worse problems that I could RMA the replacement and keep the original. My problem is a little annoying but I have no desire to go through 6 or more replacements to find that perfect device. Other than the dim strip this thing is flawless so I'd rather not risk warped backs, reboots, or a worse panel. Here's to hoping the one replacement is defect free.
Sent from my Nexus 10 using xda premium
Jayrod1980 said:
Well I called for an RMA. Before the csr put it through, I got assurance that should the replacement have worse problems that I could RMA the replacement and keep the original. My problem is a little annoying but I have no desire to go through 6 or more replacements to find that perfect device. Other than the dim strip this thing is flawless so I'd rather not risk warped backs, reboots, or a worse panel. Here's to hoping the one replacement is defect free.
Sent from my Nexus 10 using xda premium
Click to expand...
Click to collapse
You and me both lol, I really hope my replacement doesn't have worse light bleed.
Before returning your Nexus 10...
Call Google and speak to TECH SUPPORT AND NOT CUSTOMER SUPPORT!
I complained about light bleed in my first one, and later came to find out that the idiot in CS put down that I was returning it due to remorse, which means I'd have to pay the restocking fee. Tech will put your return reason as defective or DOA so you don't get charged the fee.
No light bleed on mine. I was surprised since my last two Android tablets (transformer and toshiba excite 10) both had some light bleed noticeable on the black boot screen.
Hi,
order Thursday 22 and Friday 23 received. I also have the problem of "light leakage" on the bottom right corner.
How is the replacement? Should your return the product for exchange or google you refer another product? and then send the product deffect .
tcb4 said:
So far not so good. 14 people don't have light bleed and 15 people do.
Click to expand...
Click to collapse
Worth bearing in mind that the numbers are skewed somewhat toward people who are concerned about this topic, with a good chance that they have a light bleed problem -- these are generally the folks who will open this thread and vote in the poll. If you could be confident that all XDA readers in the N10 forum would vote, the percentage would be scarier. Not sure how meaningful the stats will really be that are collected in this thread.

PWM or backlight failure?

I'm experiencing either a defect or an unfortunate feature on this tablet. I just took delivery of a new one, and while viewing any solid colors besides grey on the screen everything is fine (also no dead pixels), but I'm noticing what appears to be slight backlight flickering/pulsing whenever grey or light blue is shown on the screen. It seems to be PWM (pulse width modulation) of the leds, but I can't be certain it's a defect or just the unfortunate way these tablets' led screens are designed. It's a very subtle but consistent and annoying pulse, but it's definitely there. Can anyone confirm that PWM is what's going on with these tablets or if this is a defective screen. The screen doesn't pulse at all on any other colors solid or only partially filling the screen or otherwise.
I haven't noticed anything on mine, though I tend to keep the backlight fairly low (17%).
One thought though which is why I'm saying anything, I remember on the nexus 7 there was an issue with one of the friction pins not connecting to the back of the case's antenna fully sometimes, which would cause the radio/wifi to suck extra power resulting in backlight pulses... have you tried turning on airplane mode (disable the cellular) with wifi off to see if that makes a difference? Though it would be odd if it only affected the one colour... I suppose it could be your ambient light source too, does it do it in sunlight?
joeblowma said:
I haven't noticed anything on mine, though I tend to keep the backlight fairly low (17%).
One thought though which is why I'm saying anything, I remember on the nexus 7 there was an issue with one of the friction pins not connecting to the back of the case's antenna fully sometimes, which would cause the radio/wifi to suck extra power resulting in backlight pulses... have you tried turning on airplane mode (disable the cellular) with wifi off to see if that makes a difference? Though it would be odd if it only affected the one colour... I suppose it could be your ambient light source too, does it do it in sunlight?
Click to expand...
Click to collapse
Good idea! Unfortunately, killing the antennas doesn't affect it. And there's no ambient light sensor on the g pad x, so that's out as well I'm so disappointed because there are not dead pixels and only very little light bleed in the corners too.
I didn't mean ambient light sensor would be the cause, more that perhaps you have bulb/s that cycle at a specific rate at a certain colour range that would cause a subtle flicker, I always found those big long roof fixture fluorescent tube lights bad for this sort of thing... I notice some "out of the corner of my eye" subtle flickering on my PC LCD when I have the one CFL on, but not when I have the other LED lamp going instead for example. I just tried a LCD screen tester with various solid colours (cyan, blue) and the only 'flickering' I'm seeing is if I actually move the screen, this panel has some waviness in it that is visible when the screen is off and you angle it just right under a light which seems to pop out on these blues with the backlight turned up - but only when the screen is physically moving. Definitely not a perfect panel, but for me nothing like what you are talking about.
I'm outta ideas though, unless you are running a custom firmware and it does something different than what my stock does.
GL
edit:/ just read that RFD post from the other thread, and I definitely notice a flicker when in nova's app drawer. It seems to occur only right after I move the tablet and only noticeable at higher backlight settings, if I set it down flat and don't move it, it doesn't do it. Perhaps related to the gyro sensor? Something not isolated fully/properly would be my guess. With the wifi turned on, it also does it along with the activity up/down arrows on the logo... now that I've seen it I wonder if its going to bother me on lower brightness levels now :silly:
joeblowma said:
edit:/ just read that RFD post from the other thread, and I definitely notice a flicker when in nova's app drawer. It seems to occur only right after I move the tablet and only noticeable at higher backlight settings, if I set it down flat and don't move it, it doesn't do it. Perhaps related to the gyro sensor? Something not isolated fully/properly would be my guess. With the wifi turned on, it also does it along with the activity up/down arrows on the logo... now that I've seen it I wonder if its going to bother me on lower brightness levels now :silly:
Click to expand...
Click to collapse
Thanks for checking. I tried the airplane mode setting, and I swear that fixed it. But then it came back after a few more toggles of data/wifi. Given that you're seeing it too and that others have reported seeing it as well in the RFD thread, I'm thinking it isn't a defect but rather poor design. There's little chance it would be this widespread and only on the exact same color combo for everyone. I think most people just never notice it since you're rarely just looking at a solid or mostly solid grey screen. I wonder if there's a way to disable the gyro on a stock/non-rooted gpad like mine? For me, it does it regardless of brightness level.
I've seen this on different devices too, so it's not just a G Pad X thing. I wanna say I've seen it on my Nexus 5 back in the day, but I've had many devices so it's hard to remember. But yep, noticed it happens on "grey" colors. It's much less noticeable with the brightness lowered. Never really bothered me so never posted about it.
emilyrugburn said:
I've seen this on different devices too, so it's not just a G Pad X thing. I wanna say I've seen it on my Nexus 5 back in the day, but I've had many devices so it's hard to remember. But yep, noticed it happens on "grey" colors. It's much less noticeable with the brightness lowered. Never really bothered me so never posted about it.
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My guess is it's the led pulse width modulation. It affects some screens more than others, but is an issue with led implementation on lcd screens in general. I'm leaning towards keeping the tablet as I'm 99% convinced that another unit would exhibit the exact same behavior. Glad to hear it isn't a defect, but sad that they did not manufacturer a better screen.
Jottle said:
My guess is it's the led pulse width modulation. It affects some screens more than others, but is an issue with led implementation on lcd screens in general. I'm leaning towards keeping the tablet as I'm 99% convinced that another unit would exhibit the exact same behavior. Glad to hear it isn't a defect, but sad that they did not manufacturer a better screen.
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I don't want to clutter this thread any further, but I'm going into a B&M t-mo store to see if I can test this out on a display device to confirm how widespread this issue is.
Quick update on the flicker issue. It's a problem with all the units, or perhaps just poor design. I did a warranty exchange, and the replacement unit had the exact same issue. Oh well. Just time wasted I guess.
I have the same exact issue with the one i got my mom. Fortunately it doesn't bother her too much but it definitely seems to be a design flaw as we also returned it with the return unit having the same issue
Welcome to the world of flicker.
What you are seeing is very common and an unfortunate side effect of cheap reference designs and a don't care attitude.
There are many new standards for flicker but I doubt they'll be implemented. Flicker pwm needs to be in the 10khz range to be indistinguishable to constant current drives.

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