LG V40 screen constantly dims..Auto brightness off - LG V40 Questions & Answers

Hi,
Have had the V40 since release date. Feelings are mixed bag of frustrations.
My screen is constantly dimming and then going bright. Screen brightness is off. Is there anyone else experiencing this? Can anyone help?
I want to add this.... This problem seems to only happen out doors..bright sunny conditions....
Thanks!

I have the same thing, but it's a dimming before the screen goes dark ... it never comes back on brighter unless I touch the screen to keep it active, if I don't touch the screen it soon goes black.
Play with the screen saver settings in display, setting them to different times to see if that's your issue.

SaintlySins said:
I have the same thing, but it's a dimming before the screen goes dark ... it never comes back on brighter unless I touch the screen to keep it active, if I don't touch the screen it soon goes black.
Play with the screen saver settings in display, setting them to different times to see if that's your issue.
Click to expand...
Click to collapse
I see what you're saying. However that's not what I'm taking about. It's almost like a flicker... Almost like the screen is overheating and the screen is dimming to protect it.......

Have you used or are you using package disabler pro?
Sent from my LM-V405 using Tapatalk

What does package disabler pro do?

Related

Rainbow Effect on Screen

After being in my pocket for some time, there is a rainbow effect on the screen. I can change the location of this effect if I push elsewhere on the screen; however, it seems to concentrate itself right in the center. It has no ill-effect on the touch screen but it is visible under certain angles when the screen is on. I am using the screen protector that came with it. After some time being out of my pocket it dissipates and looks normal.
Anyone else experience anything like this?
eskimochaos said:
After being in my pocket for some time, there is a rainbow effect on the screen. I can change the location of this effect if I push elsewhere on the screen; however, it seems to concentrate itself right in the center. It has no ill-effect on the touch screen but it is visible under certain angles when the screen is on. I am using the screen protector that came with it. After some time being out of my pocket it dissipates and looks normal.
Anyone else experience anything like this?
Click to expand...
Click to collapse
Yeah, I have.. I haven't noticed it's touch sensitive, but I've seen the problem while rebooting and also randomly while using the phone.. And it seems like for me the screen gets progressively worse and starts losing all contrast and fades to white. A reboot always fixes it.
My guess is something in the video drivers flips out. But the first time I saw it I thought I had a hardware problem because I found it that way in the morning out of the blue, but I guess it had started doing it 'itself' overnight or something.
khaytsus said:
Yeah, I have.. I haven't noticed it's touch sensitive, but I've seen the problem while rebooting and also randomly while using the phone.. And it seems like for me the screen gets progressively worse and starts losing all contrast and fades to white. A reboot always fixes it.
My guess is something in the video drivers flips out. But the first time I saw it I thought I had a hardware problem because I found it that way in the morning out of the blue, but I guess it had started doing it 'itself' overnight or something.
Click to expand...
Click to collapse
I dont think it has anything to do with the screen itself. But the digitizer and the multiple layers on top of the screen that the digitizer is composed of.
Newton's rings isn't it?
jontelfer said:
Newton's rings isn't it?
Click to expand...
Click to collapse
Yes that is exactly it - the diffraction of light between 2 surfaces, is it normal; however?
Thanks!
eskimochaos said:
I dont think it has anything to do with the screen itself. But the digitizer and the multiple layers on top of the screen that the digitizer is composed of.
Click to expand...
Click to collapse
Nooo, then maybe what I'm talking about is different. I'm talking crazy screen, weird 'rippling' going on, screen slowly turns more and more white. I know what newtons rings are.. It's sorta visible in sunlight.
So perhaps I'm describing a different issue. Mine is definitely something with the phone, not the layers.

If your screen doesn't turn on or you think it doesn't charge, look here

I just received my nexus and I thought the battery was dead cause it showed the battery icon briefly. I left it charging for an hour and nothing. I tried the flashlight trick on the screen and I could see the welcome screen. I disable the automatic dimming feature and now my screen turns on. It must be a software issue on the sensor. I don't know yet.
So you shine a flashlight at the ambient light sensor and it turns the screen back up? Like the sensitivity of the sensor is too low? I'll have to make a mental note of this for when mine finally comes in.
Yes if you can't see the screen. If it still doesn't work, shine the light on the screen and you should be able to see the welcome screen. I don't know if you ever had your laptop LCD inverter burn out?
Thanks for this post. I had the exact same problem. I struggled to get up and running, but figure it out with the help of my GNex.
WG
Thanks for the info.
I had this problem and I'm getting mine replaced. This is almost certainly not a software issue, else everybody would be having it (and if it were a misconfiguration, it would go away with a flash of the factory rom).
mewantnexus7 said:
I had this problem and I'm getting mine replaced. This is almost certainly not a software issue, else everybody would be having it (and if it were a misconfiguration, it would go away with a flash of the factory rom).
Click to expand...
Click to collapse
Do a search for light sensor, and you'll find other people with this problem.
WG
True, I can't even see youtube in landscape mode cause the screen will shutoff. I have to have it in portrait mode.
Sounds more like a hardware problem. A light should DIM the screen, not brighten it. The sensor is reversed.
Sent from my Nexus 7 using xda app-developers app
mkiker2089 said:
Sounds more like a hardware problem. A light should DIM the screen, not brighten it. The sensor is reversed.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
So when you walk outside to the bright sun, you would want your tablet's brightness to be at the lowest setting? I doubt it

Screen changing brightness when not on Auto and no power saving...

I just got my Asus tf701t and, while first using it, the home and back buttons did not work in portrait mode and the screen would change brightness at varying time intervals (usually a few seconds) when the brightness was set very low. an update to 4.3 cured the back and home button issue but the screen still can't stay at one brightness level when I set it to very dim. It's not changing dramatically, more like a few percent, but enough to be distracting.
The odd part is that the dimming/brightening issue almost seems application dependent. It occurs far more often in the home screen or skout but almost never when playing shadowgun dead zone or when using naked browser.
Does anyone else have similar issues?
The only posts about flickering on other people's tf701t seem to be related to power saving and I need to know if this needs to be exchanged or if this is a common problem.
dbozam said:
I just got my Asus tf701t and, while first using it, the home and back buttons did not work in portrait mode and the screen would change brightness at varying time intervals (usually a few seconds) when the brightness was set very low. an update to 4.3 cured the back and home button issue but the screen still can't stay at one brightness level when I set it to very dim. It's not changing dramatically, more like a few percent, but enough to be distracting.
The odd part is that the dimming/brightening issue almost seems application dependent. It occurs far more often in the home screen or skout but almost never when playing shadowgun dead zone or when using naked browser.
Does anyone else have similar issues?
The only posts about flickering on other people's tf701t seem to be related to power saving and I need to know if this needs to be exchanged or if this is a common problem.
Click to expand...
Click to collapse
I don't have the flickering when not on auto and lowest setting.
However some apps can dimm the screen while loading.
On the TF700 the stock browser did that when loading a page but on the TF701 the brightness doesn't do that.
You have an ambient light sensor built into the device. It adjusts the brightness based on the lighting in your environment. It can't be turned off either.
Sent from my Transformer Infinity TF701T using Tapatalk HD
xRevilatioNx said:
You have an ambient light sensor built into the device. It adjusts the brightness based on the lighting in your environment. It can't be turned off either.
Click to expand...
Click to collapse
It can't be turned off? So when you turn on automatic brightness it just changes the brightness more drastically? This doesn't sound right.
Based on the other poster's response, I think I need to return this unit. The screen dimming/brightening happens to often and randomly to be part of my apps and I even noticed, in some apps, that just touching the screen causes a brightness change.
Even if this is by design, it is far too distracting.
dbozam said:
It can't be turned off? So when you turn on automatic brightness it just changes the brightness more drastically? This doesn't sound right.
Based on the other poster's response, I think I need to return this unit. The screen dimming/brightening happens to often and randomly to be part of my apps and I even noticed, in some apps, that just touching the screen causes a brightness change.
Even if this is by design, it is far too distracting.
Click to expand...
Click to collapse
Read it and weep my friend. Proof is in the pudding..
Sent from my Transformer Infinity TF701T using Tapatalk HD
dbozam said:
I just got my Asus tf701t and, while first using it, the home and back buttons did not work in portrait mode and the screen would change brightness at varying time intervals (usually a few seconds) when the brightness was set very low. an update to 4.3 cured the back and home button issue but the screen still can't stay at one brightness level when I set it to very dim. It's not changing dramatically, more like a few percent, but enough to be distracting.
The odd part is that the dimming/brightening issue almost seems application dependent. It occurs far more often in the home screen or skout but almost never when playing shadowgun dead zone or when using naked browser.
Does anyone else have similar issues?
The only posts about flickering on other people's tf701t seem to be related to power saving and I need to know if this needs to be exchanged or if this is a common problem.
Click to expand...
Click to collapse
My 701 is doing this as well. Turned off auto brightness, turned off power saver, rebooted. When it comes back up the device acts like auto brightness is on, with screen brightness fluctuaating randomly. Turning power saver on and off again seems to solve it, but that behavior is very annoying - it's why I turn auto brightness off in the first place.
US SKU running 4.3 installed via ota, no root or unlock or anything - straight stock. Its also my second device, my original had a bad cable and wouldn't charge. Serial number ends in 072259.
Sent from my K00C using Tapatalk 4
Aaroneious said:
My 701 is doing this as well. Turned off auto brightness, turned off power saver, rebooted. When it comes back up the device acts like auto brightness is on, with screen brightness fluctuaating randomly. Turning power saver on and off again seems to solve it, but that behavior is very annoying - it's why I turn auto brightness off in the first place.
US SKU running 4.3 installed via ota, no root or unlock or anything - straight stock. Its also my second device, my original had a bad cable and wouldn't charge. Serial number ends in 072259.
Sent from my K00C using Tapatalk 4
Click to expand...
Click to collapse
I also tried turning power saver mode on and off and for me it seemed to improve the situation but not eliminate it. I am going to return the tablet and wait for the nexus 10.
Ugh, mine has been doing this, too. Can't believe there isn't a setting somewhere...
Mine is doing the same thing... glad that it's not just me, but this flickering is very annoying
Driving me nuts
I'm having the same problem and it's driving me nuts!
I'm quite convinced it's a software "feature" but currently there seems to be no way to turn it off?
It's one of those "Adjust brightness of the screen based on content" or "Changing LCD refresh rate and colors for power saving" but sadly it does it the wrong way around (This has been going on for a while now, manufacturers don't really get it). When there is a lot of bright content the brightness will rise and when there is mostly a dark screen it will fall.
Of course, this should happen exactly the other way around. When there is a lot of bright/white on my screen it should lower and when there is mostly black it should become brighter thus giving you more contrast but keeping the overall lux that comes off your screen the same...... My Intel graphics notebook does this too and it's very irritating. There they do it by manipulating the LCD screen and lowering the refresh rate and other tricks to save battery. First thing I turned off.
However way it goes though, you should be able to turn it off!
Quindor said:
I'm having the same problem and it's driving me nuts!
I'm quite convinced it's a software "feature" but currently there seems to be no way to turn it off?
It's one of those "Adjust brightness of the screen based on content" or "Changing LCD refresh rate and colors for power saving" but sadly it does it the wrong way around (This has been going on for a while now, manufacturers don't really get it). When there is a lot of bright content the brightness will rise and when there is mostly a dark screen it will fall.
Of course, this should happen exactly the other way around. When there is a lot of bright/white on my screen it should lower and when there is mostly black it should become brighter thus giving you more contrast but keeping the overall lux that comes off your screen the same...... My Intel graphics notebook does this too and it's very irritating. There they do it by manipulating the LCD screen and lowering the refresh rate and other tricks to save battery. First thing I turned off.
However way it goes though, you should be able to turn it off!
Click to expand...
Click to collapse
I'm having the same issue. I think it's the smart dimmer option Asus have used before but they forgot to include it in the Asus customised options. I'll have a dig through the ROM to see where it is stored.
I'm having this problem as well.
I have my brightness set to about 80%, Auto-Brightness Off, Power Save Off.
It is very annoying when reading magazines that have a lot of white background. My screen will be stable for minutes then, often on a touch, will change the screen brightness, seemingly by 5-20%.
I was just getting ready to return it, and thought I would check here to see of anyone else has this problem. Has any actually called Asus with this complaint? I would be interested to know if they see this as a hardware defect, software bug, or working as designed.
PS - I just placed a technical support request about this on the Asus Website. Here is my problem description:
Even with automatic brightness & power saving turned off, the brightness of the screen will change over time, often seemingly in response to a touch. (Reading Mode is Off as well.)
The period between changes can vary from several minutes to 30 seconds. It happens both while docked and undocked. It happens with apps and just at the launcher.
The amount of brightness change is 5-20% and it will often seem to step through some values before it stops at a particular one.
Given how fantastic looking the screen is, this unwanted fluctuation is particularly annoying.
I also own a TF201 and have not experienced this problem on that product.
Click to expand...
Click to collapse
sschlosnagle said:
I'm having this problem as well.
I have my brightness set to about 80%, Auto-Brightness Off, Power Save Off.
It is very annoying when reading magazines that have a lot of white background. My screen will be stable for minutes then, often on a touch, will change the screen brightness, seemingly by 5-20%.
I was just getting ready to return it, and thought I would check here to see of anyone else has this problem. Has any actually called Asus with this complaint? I would be interested to know if they see this as a hardware defect, software bug, or working as designed.
PS - I just placed a technical support request about this on the Asus Website. Here is my problem description:
Click to expand...
Click to collapse
I have this issue too but not a real biggie as the connection problems between dock and tablet.
Same problem!
dbozam said:
I just got my Asus tf701t and, while first using it, the home and back buttons did not work in portrait mode and the screen would change brightness at varying time intervals (usually a few seconds) when the brightness was set very low. an update to 4.3 cured the back and home button issue but the screen still can't stay at one brightness level when I set it to very dim. It's not changing dramatically, more like a few percent, but enough to be distracting.
The odd part is that the dimming/brightening issue almost seems application dependent. It occurs far more often in the home screen or skout but almost never when playing shadowgun dead zone or when using naked browser.
Does anyone else have similar issues?
The only posts about flickering on other people's tf701t seem to be related to power saving and I need to know if this needs to be exchanged or if this is a common problem.
Click to expand...
Click to collapse
Thank you very much for creating this topic, because I was worried for my tablet too!
---------- Post added at 11:55 AM ---------- Previous post was at 11:52 AM ----------
Snah001 said:
I have this issue too but not a real biggie as the connection problems between dock and tablet.
Click to expand...
Click to collapse
I heared a lot of people say I about this, but happily I seem to don't have it or I don't detect it. What is this dock problem about?
I suspect this is the same "smart dimming" feature that the 700 had.
improvius said:
I suspect this is the same "smart dimming" feature that the 700 had.
Click to expand...
Click to collapse
Yep me too and as soon as I root I'm going to see if the same fix will turn it off
There seems to be no way to disable this. Some believe it's the light sensor, but I've taped over mine with black electrical tape and tested and I don't see any difference in the behavior. Check our my Youtube video if you are a user who doesn't see the issue (look for threads in this same XDA forum).
I've finally been able to get someone at Asus to look into this and it's been sent to TW for review. I haven't heard anything back yet. I strongly recommend that other people who are annoyed by this (I find it tremendously distracting) to search on "asus escalation" which will bring up a special mailbox. Here is the link (although I do not know if the link will work for you). This should get looked at by someone with at least some ability beyond reading a script. If enough people do this, I think that they will fix it. Since you can temporarily override it by toggling smart saver on/off, it has to be fixable by software.
http://www.service.asus.com/#!escalation-mailbox/c1scx
derekk1 said:
There seems to be no way to disable this. Some believe it's the light sensor, but I've taped over mine with black electrical tape and tested and I don't see any difference in the behavior. Check our my Youtube video if you are a user who doesn't see the issue (look for threads in this same XDA forum).
I've finally been able to get someone at Asus to look into this and it's been sent to TW for review. I haven't heard anything back yet. I strongly recommend that other people who are annoyed by this (I find it tremendously distracting) to search on "asus escalation" which will bring up a special mailbox. Here is the link (although I do not know if the link will work for you). This should get looked at by someone with at least some ability beyond reading a script. If enough people do this, I think that they will fix it. Since you can temporarily override it by toggling smart saver on/off, it has to be fixable by software.
http://www.service.asus.com/#!escalation-mailbox/c1scx
Click to expand...
Click to collapse
I returned my tf701, waited for cyber Monday, and bought the Samsung note 2014 since the nexus 10 2 is so elusive. I put in an escalation request anyway and included a link to this thread in my complaint.
improvius said:
I suspect this is the same "smart dimming" feature that the 700 had.
Click to expand...
Click to collapse
I also saw this issue on my TF701. This seems a "feature" of Tegra SoC

Has anybody seen light bleed like this?

Looks as if I'm going to have to join the return game on this device. I've been a very happy TF700 owner on CROMi-X for the last year and still had that WOW effect when I started playing with this tablet.
Until it got dark.... I mean - the attached picture is with the tablet in sleep mode!!!!! That's gotta suck the battery dry like nothing.....
Opened a ticket with Asus for what it's worth...
I'm going to update to 4.3 manually, but don't expect that'll do much.
Does anybody have something similar?
Edit: After about an hour of reading the screen dimmed and had dark shadows on both sides. I flashed the 4.3 update manually since the System Update wouldn't - now everything seems to be fine.
Light bleed gone when in sleep mode and no shadows either... ?????????
Weird, glad you got it sorted out.
Sent from my HTC One using Tapatalk
Wow - good outcome - never seen anything like that - keep your eyes on it obviously
sbdags said:
Wow - good outcome - never seen anything like that - keep your eyes on it obviously
Click to expand...
Click to collapse
Unfortunately it's not resolved to the point that I feel confident to unlock.
I still have have weird and uneven dimming of the screen. Sometimes just part of the screen dims and shows a dark, uneven shadow across it (in reading mode). What I don't understand is, taking a screen shot in that situation shows nothing of the shadow....??
What I consistently see is when the screen times out, it dims just before it turns off, but only on part of the screen (more or less the left half, but fading out from left to right).
Smart Saving is off.. Can't think of anything else to try...
I'd hate to return it, but I think I'll have to - this does not inspire confidence....
berndblb said:
Unfortunately it's not resolved to the point that I feel confident to unlock.
I still have have weird and uneven dimming of the screen. Sometimes just part of the screen dims and shows a dark, uneven shadow across it (in reading mode). What I don't understand is, taking a screen shot in that situation shows nothing of the shadow....??
What I consistently see is when the screen times out, it dims just before it turns off, but only on part of the screen (more or less the left half, but fading out from left to right).
Smart Saving is off.. Can't think of anything else to try...
I'd hate to return it, but I think I'll have to - this does not inspire confidence....
Click to expand...
Click to collapse
Smart saving has nothing to do with smart dimming unfortunately. You can only turn smart dimming off if you are rooted. I'd take it back and get a replacement as what you are seeing is not normal.
berndblb said:
Unfortunately it's not resolved to the point that I feel confident to unlock.
I still have have weird and uneven dimming of the screen. Sometimes just part of the screen dims and shows a dark, uneven shadow across it (in reading mode). What I don't understand is, taking a screen shot in that situation shows nothing of the shadow....??
What I consistently see is when the screen times out, it dims just before it turns off, but only on part of the screen (more or less the left half, but fading out from left to right).
Smart Saving is off.. Can't think of anything else to try...
I'd hate to return it, but I think I'll have to - this does not inspire confidence....
Click to expand...
Click to collapse
Never seen this on any tablet.
To me it seems that some parts of the Led backlight are not working correct or totally not.
Better try to get it swapped or Rma'd ASAP.
R.I.P
I was filling out the Amazon return form and picked it up 'cause I got a notification about new mail - and that's when the digitizer gave up completely.
I was able to wipe my data by hooking it up to the TV and got it to reset with a lot of huntin' and pecking.
A replacement is on it's way. You gotta love Amazon :cyclops:

Black screen doesn't turn off pixels

Hi everyone, as you should know the Asus Zenwatch 3 has an AMOLED display. From my understanding this should mean when displaying the colour black, the pixels should be turned off completely (like on my S7 Edge).
I was looking at my watch in a pitch black room with an ambient watch face displaying a black background and it appeared slightly reddish. Compared with my LG G Watch R sporting the exact same watch face it was clear the LG had the black pixels turned off but not on my Zenwatch 3.
I've attached a couple of pictures taken with my phone of the Zenwatch 3 in a pitch black room, one with normal shutter speed and the other with a 2 second shutter speed. Evidently the 2 second shutter speed shows that the display is in fact not turning off the pixels. The pics were taken when the watch was charging and in ambient mode with a watch face set to true black only.
Can anyone else confirm that this is the case and maybe a reason why? I'm worried that battery life may be affected by this with always on display enabled.
Lastly on a side note, are the black lines that aren't illuminated something to worry about?
Mine is the same, including a similar set of dark lines. I've seen others on Reddit report identical concerns.
frelnik said:
Mine is the same, including a similar set of dark lines. I've seen others on Reddit report identical concerns.
Click to expand...
Click to collapse
Noticed this too, thought I was crazy lol...kinda waste of an AMOLED screen.
Hmmm ok at least I'm not the only one. Hopefully Asus is able to change it in a future update.
Yeah it is weird, black watch faces aren't truly black. I think they did it so watch faces can blend into the color scheme of the watch, if you notice the color overlay on the app launcher
That's because of auto Brightness. Turn it off. This impacts battery life. I observed this on very first day after the purchase. Using manual Brightness since then.
deathgame said:
That's because of auto Brightness. Turn it off. This impacts battery life. I observed this on very first day after the purchase. Using manual Brightness since then.
Click to expand...
Click to collapse
I just tried disabling Auto Brightness but the red tinge of the black background still exists.
blackhand64 said:
I just tried disabling Auto Brightness but the red tinge of the black background still exists.
Click to expand...
Click to collapse
It doesn't happen with me. If I turn off auto Brightness the blacks go complete black. Do you have live display turned on your phones? If so try disabling it. May be this setting depends on your phone. All I can confirm is if I turned auto Brightness off amoled works perfectly.
deathgame said:
It doesn't happen with me. If I turn off auto Brightness the blacks go complete black. Do you have live display turned on your phones? If so try disabling it. May be this setting depends on your phone. All I can confirm is if I turned auto Brightness off amoled works perfectly.
Click to expand...
Click to collapse
Not sure what you mean by live display but I just have a stock S7 Edge. I prefer keeping the auto brightness on for my watch so I guess I'll have to live with it.
blackhand64 said:
Not sure what you mean by live display but I just have a stock S7 Edge. I prefer keeping the auto brightness on for my watch so I guess I'll have to live with it.
Click to expand...
Click to collapse
Live display is when some ROMs allow the screen to have a tint at night time so the blue light from the screen won't affect your eyes at night
Me too have similar display and black line like that.
Glad I'm not the only one with this condition.
I also have those black lines, was about to get a replacement but since I'm not the only one and it doesn't affect overall performance or aesthetics its fine.
Yeah I have also black lines and screen is not completely dark with totally black watch faces
Turning off the auto brightness is not a solution. Its a pain if you had to adjust the brightness all the time

Categories

Resources