Hello.
Just bought this terminal, D410, and when luminosity is 0% or close there is a little but noticeable flickering on the screen. It's better seen with a white background.
I read some LG phones had this issue, can you confirm it happens with yours, if not I'll just try to replace it.
jesuita said:
Hello.
Just bought this terminal, D410, and when luminosity is 0% or close there is a little but noticeable flickering on the screen. It's better seen with a white background.
I read some LG phones had this issue, can you confirm it happens with yours, if not I'll just try to replace it.
Click to expand...
Click to collapse
looks like that is normal, mine does the same, i was wondering if it was only me, but now i know i am not alone
besides that the phone is great so no complaints
Ahhh and mine is an L90 ( D415)
so looks like that "issue" happens across similar models
Yeah, I thought so. Looks like G2 has the same problems.
The flickering is minimal so I won't bother too much. I can always use screen filter
And yeah, this phone is great!
jesuita said:
Hello.
Just bought this terminal, D410, and when luminosity is 0% or close there is a little but noticeable flickering on the screen. It's better seen with a white background.
I read some LG phones had this issue, can you confirm it happens with yours, if not I'll just try to replace it.
Click to expand...
Click to collapse
That's actually a normal thing to happen, something to do with the frequency at wich the leds pulse to appear "less bright".
Turn brightness up and it will go away.
Hi.
mine also has this problem. For me, it quite annoying, I do not want to use screen filter.
Is there anyone know how to fix it?
Does it happen on non-stock rom (slim, CM...)?
Edit: I have flashed Slim rom. It is great, and I barely see the flicker. In stock 5.0.2, it is annoying, and in Kitkat it is unacceptable for me (I think my eyes are sensitive).
Will anyone try to modify the stock kernel so that the backlight pwm will increase?
nvt992 said:
Hi.
mine also has this problem. For me, it quite annoying, I do not want to use screen filter.
Is there anyone know how to fix it?
Does it happen on non-stock rom (slim, CM...)?
Edit: I have flashed Slim rom. It is great, and I barely see the flicker. In stock 5.0.2, it is annoying, and in Kitkat it is unacceptable for me (I think my eyes are sensitive).
Will anyone try to modify the stock kernel so that the backlight pwm will increase?
Click to expand...
Click to collapse
Which Slim, L or M based? Try using a higher minimum CPU frequency (make sure you pick a governor that allows setting frequencies), I remember reading that it's what made stock Lollipop better regarding screen flickering.
lfom said:
Which Slim, L or M based? Try using a higher minimum CPU frequency (make sure you pick a governor that allows setting frequencies), I remember reading that it's what made stock Lollipop better regarding screen flickering.
Click to expand...
Click to collapse
slim 6.0.1 and cm 12.1. both are almost flicker-free (infact i think i see a little bit, but i dont know if this is just my imagination or not). in both stock 4.4 and 5.0, the flicker is clearly seen.
thank for your information, i will try.
Edit: I have tried with Kitkat v10f. No luck I just dont want stock Lolipop, it is just too laggy compared to Cm 12.1
Related
I played with my NC nearly one week and I like it. But I want to know dose anyone notice the screen of NC is flickering. If you couldn't understand what I mean, please refer to below video,
http://www.youtube.com/watch?v=iDnBSWF44rM
it is not so obvious in real world as in video, but it is noticeable and uncomfortable. I have ipad with IPS LCD but never find this kind of issue. It like some kind of low fresh rate issue in early PC screen, so I want to know whether it is possible to fix it via adjust screen refresh rate in OS level.
Your comments are welcome!
Mine does that but only on the gray background, otherwise I don't see any flickering.
I exchanged my first NC because of this issue. The salespeople thought I was nuts until I demonstrated it for them. My new one still does it but MUCH more faintly and not all the time. I do believe that Barnes & Noble is aware of it (or at least that's something I read in another thread here somewhere..).
It seems to only happen at middling levels of brightness. My first NC exhibited the issue under very specific settings and times, the brightness had to be set between 20%-40% and I had to be displaying a solid area of mid-range colors. I saw it all the time when the screen would dim to display a menu.
From personal experience, you MIGHT be able to get a unit that's better if you exchange. It does seem to be a very common issue, though. Rumor has it that it might be fixable through a firmware update.. we shall see.
I had a pocket pc with this problem many moons ago...The fix was to adjust a trim pot on the display...
No idea if anything like that would apply here, but just wanted to mention it.
I do have similar problem, could any people advise on how to check the refresh rate and increase it?
Many thanks.
Are you planning on rooting or installing another ROM on your Nook? The overclock kernels fix this issue.
from what I see there in the video, if that is what you are seeing...not refresh rate. Rather it looks like a cycling in the backligt control. Almost looks like the PWM duty cycle is out of wack...would explain why it happens at mid range of the brightness.
My first nook color had this problem, I solved it by leaving the brightness up all the time which seemed to prevent it. I got it replaced for other display issues, and my new one doesn't flicker at any brightness, so yeah it sounds like a defect.
Not a defect. It's a problem with stupid coding in the backlight driver.
They set the PWM (pulse width modulation) rate too low, at 40Hz if I remember right. It's easy to fix by setting it up to 60Hz in the driver, which I did in my old Quickie kernel. Totally gets rid of the flicker, and I've seen no side-effects, nor have any been reported to me.
I don't have the time to keep up with the kernel anymore, and for some reason no other kernel dev has pulled my driver fix into theirs. You might talk to Dalingrin or one of the other devs if you really want it, and put them in contact with me at [email protected] and I can help them get it integrated into their kernel.
Can you link to the github commit?
Tx
Sent from my HTC Vision using XDA App
Hmmmm.... my Nook definitely had the flicker issue on most gray colors, especially at dimmer brightness settings. I'm not using your kernel, but I am using Dalingrin's. I haven't seen flicker in months. Could this issue be limited to the stock ROM only?
911jason said:
Hmmmm.... my Nook definitely had the flicker issue on most gray colors, especially at dimmer brightness settings. I'm not using your kernel, but I am using Dalingrin's. I haven't seen flicker in months. Could this issue be limited to the stock ROM only?
Click to expand...
Click to collapse
It appears that way from my experience. I was running the dual boot package with stock and CM7 nightly.
The stock rom flickered very noticeably on greyish type backgrounds. Using CM7 and now Phiremod, the flickering has totally gone away.
Actually the fix is already in init.encore.rc:
Code:
write /sys/devices/omapdss/display0/timings 68000,1024/70/200/40,600/10/11/10
That said, it's going into the driver too.
I have this weird brightness problem where I have it at 50% and it would randomly dim and brighten like crazy. I tested at 100% brightness and it also dims and brightens. Obviously, I don't have it on auto brightness but it sure acts like it.
Anyone with the same issue? Is it a defect? I just got the phone today and I'm afraid to exchange it to have the same problem again. I really like this phone. There's always a friggin issue on a new phone. It's ridiculous.
neotoky said:
I have this weird brightness problem where I have it at 50% and it would randomly dim and brighten like crazy. I tested at 100% brightness and it also dims and brightens. Obviously, I don't have it on auto brightness but it sure acts like it.
Anyone with the same issue? Is it a defect? I just got the phone today and I'm afraid to exchange it to have the same problem again. I really like this phone. There's always a friggin issue on a new phone. It's ridiculous.
Click to expand...
Click to collapse
I think is a software problem. Lollipop still have lot to fix. Mines look the same. Can be a display minor isue. Not sure, but for me this phone doesn't have the best brighness at all. But I love this phone better than others for now. If you came from samsung phone, there is a big diferent in brightness. Post some screen shoot. One in a white background, and the other in a grey one. I will post the same and you tell me if something is diferent. Sorry for my grammar. Is not the best !!!!?
---------- Post added at 09:22 AM ---------- Previous post was at 09:20 AM ----------
jfernandezv said:
I think is a software problem. Lollipop still have lot to fix. Mines look the same. Can be a display minor isue. Not sure, but for me this phone doesn't have the best brighness at all. But I love this phone better than others for now. If you came from samsung phone, there is a big diferent in brightness. Post some screen shoot. One in a white background, and the other in a grey one. I will post the same and you tell me if something is diferent. Sorry for my grammar. Is not the best !!!!?
Click to expand...
Click to collapse
Do it at 50%....
neotoky said:
I have this weird brightness problem where I have it at 50% and it would randomly dim and brighten like crazy. I tested at 100% brightness and it also dims and brightens. Obviously, I don't have it on auto brightness but it sure acts like it.
Anyone with the same issue? Is it a defect? I just got the phone today and I'm afraid to exchange it to have the same problem again. I really like this phone. There's always a friggin issue on a new phone. It's ridiculous.
Click to expand...
Click to collapse
My screen shoot!!!
neotoky said:
I have this weird brightness problem where I have it at 50% and it would randomly dim and brighten like crazy. I tested at 100% brightness and it also dims and brightens. Obviously, I don't have it on auto brightness but it sure acts like it.
Anyone with the same issue? Is it a defect? I just got the phone today and I'm afraid to exchange it to have the same problem again. I really like this phone. There's always a friggin issue on a new phone. It's ridiculous.
Click to expand...
Click to collapse
In Q&A is a thred call DPI Change. Try that, but reed carfully. you'll need root for that.
I appreciate your input but I don't know how the things you mentioned would help me in my case. I would need to do a video in order to see the problem instead of screen shots. Dpi change will do nothing in this case as well. You may be confused with the issue I have.
Well I try my best. As I sed could be a software problem. DPI is a resolution thing, can help a little. Also you can link a video to see exactly what you talking about. The reson I ask for the screen shoot is becaus I can probably see a differences between your brightness and mines. Hope somebody can help you on that.
hello to all,
So I've recently noticed this happening on my mi5 32GB variant. Whenever I close an app, after using it for sometime, a diminished part of that app remain even after closing it.
for example, if I use FB app for sometime and when I close it and go to homescreen, near the upper part of the screen I can see the diminished part of the FB app ( the upper part of FB app) even after closing it.
This can be viewed better if I go to recent apps screen. Since it has a greyish background the image can be viewed better. This is more prominent in the upper corners of the screen, but it also visible on the lower corners as well.
This happens when the phone becomes hot after working for sometime. If I leave it locked and idle for sometime, that image fades away and everything becomes normal. But if I start using the phone again for sometime, the problem comes back.
I kind of think this is something wrong with the lcd panel because if I take a screenshot (of the homescreen/recent apps menu when the problem persists) and view it through the PC it looks fine.
I've flashed both lineage OS and xiaomi.eu ROMs and this happens in both of them.
My phone has a LGD panel.
If anyone here has previously encountered this problem or if anybody have any idea about why this is happening and/or whether there are any solutions for this, I would really appreciate your help
I think its called a screen burn issue. Dont have a solution though
Sent from my MI 5 using Tapatalk
SilverMarcs said:
I think its called a screen burn issue. Dont have a solution though
Sent from my MI 5 using Tapatalk
Click to expand...
Click to collapse
right ... I suspected something like this coz it happens only when the phone is hot. I didn't knew the correct term for that ....
thanks for the reply buddy. appreciate it
It's image retention. Which happen quite frequently on ips display made by LG. Many LG's flagship also suffer this symptom. The only way you can reduce it is by reducing the amount of RGB(Red green blue) colour profile by 5-7% though only doable in LOS.
theVANGUARD Official said:
hello to all,
So I've recently noticed this happening on my mi5 32GB variant. Whenever I close an app, after using it for sometime, a diminished part of that app remain even after closing it.
for example, if I use FB app for sometime and when I close it and go to homescreen, near the upper part of the screen I can see the diminished part of the FB app ( the upper part of FB app) even after closing it.
This can be viewed better if I go to recent apps screen. Since it has a greyish background the image can be viewed better. This is more prominent in the upper corners of the screen, but it also visible on the lower corners as well.
This happens when the phone becomes hot after working for sometime. If I leave it locked and idle for sometime, that image fades away and everything becomes normal. But if I start using the phone again for sometime, the problem comes back.
I kind of think this is something wrong with the lcd panel because if I take a screenshot (of the homescreen/recent apps menu when the problem persists) and view it through the PC it looks fine.
I've flashed both lineage OS and xiaomi.eu ROMs and this happens in both of them.
My phone has a LGD panel.
If anyone here has previously encountered this problem or if anybody have any idea about why this is happening and/or whether there are any solutions for this, I would really appreciate your help
Click to expand...
Click to collapse
Look under display calibration and change your RGB values accordingly: R: 93% G:93% B93% . It works like a charm :highfive: I use LineageOS although not all ROMs have this feature.
Mr.201 said:
It's image retention. Which happen quite frequently on ips display made by LG. Many LG's flagship also suffer this symptom. The only way you can reduce it is by reducing the amount of RGB(Red green blue) colour profile by 5-7% though only doable in LOS.
Click to expand...
Click to collapse
xdadevet said:
Look under display calibration and change your RGB values accordingly: R: 93% G:93% B93% . It works like a charm :highfive: I use LineageOS although not all ROMs have this feature.
Click to expand...
Click to collapse
thank you both for the help :good:
I flashed the LOS latest build and adjusted the RGB according to what you've said. Let's hope it does the trick. :victory:
theVANGUARD Official said:
thank you both for the help :good:
I flashed the LOS latest build and adjusted the RGB according to what you've said. Let's hope it does the trick. :victory:
Click to expand...
Click to collapse
yeah use the LOS 14.1 and adjust the RGB to 90. I suppose it hides the retention effect. To fix the problem completely, I think the only option is the replace the screen.
some people are using KCAL which essentially provides the same options( and more) but keep in mind that it needs root access and kernel modifications.
Hi there,
There is a green tint in the right part of the screen, it's more noticeable in low light and grey colors. Using PA Rom, but I think is not related to it. I use 66 hz screen oc, but the problem persists in 60 hz too.
Searching in the web I've found that may be burned due to oc, but in the forums people have been using it for a long time without issues at higher hz. I found a forum with a man with the same issue in miui stock without screen oc, but it got fixed, so maybe it's software related.
I think I'm going to flash stock miui and see if it happens again.
Anyone with the same issue?
Your screen is fried bro
Dovahpig said:
Your screen is fried bro
Click to expand...
Click to collapse
Yep, that's what I think. :crying::crying::crying:
I'm thinking about flashing stock and use the garanty. But in daylight or light theme is not visible. Probably I'll wait to see if it get worse to contact the seller.
Hi, sorry if this was posted before, but with XDA moving to XenForo, search seems messed up, i did several searches and nothing comes up for "flicker" in this whole Pixel 4 XL Forum...
Has anyone else dealt with the low brightness screen flicker? I know it can't be just a bad phone, since i just bought three pixel 4 XL phones and they all exhibit this same behavior.
They are all running LineageOS (Official builds) so I don't know if this just affects the ROM or stock as well (although I've read it might affect stock phones too elsewhere).
It makes the phone pretty difficult to use in very low light situations, the screen will constantly flicker (more noticeable on darker backgrounds).
At first I thought it was just the Opera browser (as that's what I prefer), but it's operating system wide... Apps like "Darker" help.... because you can crank up the phone brightness and use a filter to dim the screen.... but it doesn't get the top & bottom menu/buttons, so those remain like spotlights in your eyes with that workaround.
Just curious if anyone knows whats up with this... it's the only phone I've ever seen this behavior on (and i've used Pixel 1,2,3 XL phones all with Lineage, and a myriad of other devices back in the Cyanogenmod days.... I've never seen a screen flicker issue like this).
Thanks for any help
edit / update-
the pro version of "darker" app works to fix this.... you crank the phones brightness to 100% and with the pro version you can dim the rest of the interface.
hopefully this helps anyone else suffering from this HUGE flaw (again i don't know if its just LineageOS or not, i didn't run stock on these except to unlock bootloader etc)
Hi,
I've seen it once and solved it by switching off smooth display. Not a real solution of course, but I never really noticed the difference between 90Hz and 60Hz anyway.
edwinek said:
Hi,
I've seen it once and solved it by switching off smooth display. Not a real solution of course, but I never really noticed the difference between 90Hz and 60Hz anyway.
Click to expand...
Click to collapse
hmm.... you running stock i guess? i don't see smooth display option in lineage