Hi guys!
I have a strange thing on my Dell Venue 8 (3830/T02D).
While the auto brightness is off, the brightness is still changing, depending on the type of content. For example, if I scroll o long page with white background in browser, and suddenly some dark object or picture will appear in the window, the brightness of the screen will change. It happens constantly when I use my tab with low brightness settings.
In other words the brightness constantly jumps, when something happens on the screen, so it's really very annoying.
For the first time I thought, that it is hardware issue, but later I google the problem and find out some similar questions, where people say, that it is not a hardware, but Android 4.4 problem/bug or Intel compatibility issue (it was written, that many Asus tabs and even Nexus have the same problem and it is called dynamic contrast, that is stupid function exclusively in Android 4.4).
Is it true?
Will the downgrade to 4.3 help to get rid of this random brightness jumps?
Is there any fix/hack to override this problem without flashing/downgrading?
Yumioki said:
Hi guys!
I have a strange thing on my Dell Venue 8 (3830/T02D).
While the auto brightness is off, the brightness is still changing, depending on the type of content. For example, if I scroll o long page with white background in browser, and suddenly some dark object or picture will appear in the window, the brightness of the screen will change. It happens constantly when I use my tab with low brightness settings.
In other words the brightness constantly jumps, when something happens on the screen, so it's really very annoying.
For the first time I thought, that it is hardware issue, but later I google the problem and find out some similar questions, where people say, that it is not a hardware, but Android 4.4 problem/bug or Intel compatibility issue (it was written, that many Asus tabs and even Nexus have the same problem and it is called dynamic contrast, that is stupid function exclusively in Android 4.4).
Is it true?
Will the downgrade to 4.3 help to get rid of this random brightness jumps?
Is there any fix/hack to override this problem without flashing/downgrading?
Click to expand...
Click to collapse
I never noticed this problem but if other devices have it, and no fix was provided would be no fix for this device either.
Related
I have a couple of "issues" with the phone. Not sure if its software related or hardware related. Maybe you guys can check on yours too see if it happens. This is all on stock ATT rom
It seems the One has "dynamic contrast" enabled by default. When scrolling on webpages, for example, if I come to an area with a dark advertisement, the brightness adjusts very slightly most of the time. Thats all well and good but the annoying thing is that it does it in steps causing quick blinks of the backlight. Its most pronounced at medium brightness. The same "blinking" happen when autobrightness wants to set the brightness to a very low level . It does it in very discrete steps and it takes a long time for the brightness to settle to its minimum.
If i set my brightness to 50% (most prevalent when the slider is under the "t" in brightness) I get a VERY subtle, but constant pulsating of the backlight. Again, Its a very subtle but my eyes pick it up regardless and its distracting as hell. I wouldn't mind it if autobrightness didn't hit this brightness level, but it does sometimes indoors. The effect is best seen on a mixed white and color screen, like a homescreen with a white widget and most websites. If the brightness goes a bit above or below this level, the pulsing goes away . Anyone else seeing this? maybe it happens at a different brightnesses on different screens.
Thanks
I noticed this when watching a video today. Maybe it only happens if you have autobrightness on?
Sent from my HTC One
It happens with autobrightness off for me. I actually tested it a bit more. I happens on a variety of backlight settings depending on what's on the screen.
At approx. 33% brightness (im using an app called screen adjuster to set the system brightness to a specific value), the screen does heavy pulsating on an all white image. For example, if I go to "about:blank" in the web browser. I can be seen on a desktop screen with a white widget or the settings menu.
Same thing at 40. Worst is 33% though. I have a feeling its dynamic contrast going haywire at certain brightnesses. If you turn the screen off then on, it doesnt do it for a second or 2, but then it will start. I haven't been able to find a demo unit anywhere around me to test this out. So if someone can check this on their device, I would appreciate it. Please use Screen Adjuster to get a definitive reading on the brightness. (Use the slider in "system brightness" to set it to a specific brightbess) and go to "about:blank" in the default browser
hi..
i had the widget set on the third setting, the fourth being the brightest. i had the same problem with my first phone and thought at the time it may have been a backlight problem? or power flow problem? i sent that phone back and the next phone did the same? after posting on here.. i removed the widget and manually adjusted the brightness. i like the screen quite bright, manual adjustment cleared the problem for me. i gotta say yep the flicker was more visible on screens with alot of white, google, facebook, texts? and way way annoying! i can only suggest you try the same as i did? perhaps it is just a quirk with the htc? or maybe the os? you never know, when the update to keylime or whatever it is called comes out the flicker may go totally?
JUST had this on facebook? hope it helps?
HTC One
HTC One : Update Available (1.29.401.12)
HTC is currently deploying an update for the new One
Version: 1.29.401.12 - Size: 229.04 MB
It includes :
- System Optimization
... - Updating Service Location
- HTC Zoe: Optimizing sound quality
- Camera: Optimizing Parameters
- Beats Audio: Sound enhancement
- other fixes
coming soon...
shep98 said:
hi..
i had the widget set on the third setting, the fourth being the brightest. i had the same problem with my first phone and thought at the time it may have been a backlight problem? or power flow problem? i sent that phone back and the next phone did the same? after posting on here.. i removed the widget and manually adjusted the brightness. i like the screen quite bright, manual adjustment cleared the problem for me. i gotta say yep the flicker was more visible on screens with alot of white, google, facebook, texts? and way way annoying! i can only suggest you try the same as i did? perhaps it is just a quirk with the htc? or maybe the os? you never know, when the update to keylime or whatever it is called comes out the flicker may go totally?
JUST had this on facebook? hope it helps?
HTC One
HTC One : Update Available (1.29.401.12)
HTC is currently deploying an update for the new One
Version: 1.29.401.12 - Size: 229.04 MB
It includes :
- System Optimization
... - Updating Service Location
- HTC Zoe: Optimizing sound quality
- Camera: Optimizing Parameters
- Beats Audio: Sound enhancement
- other fixes
coming soon...
Click to expand...
Click to collapse
Thanks for the response. I ended up looking at 4 more devices at 2 different stores and they all had the flicker. The sales associates even saw it. I got tired of doing exchanges and I ended up reversing my upgrade. Im going to wait and see what happens with this issue. Hopefully it gets sorted out with a firmware update, because otherwise its an awesome phone. Its a shame that the $100 trade-in offer is going to end by then and I wont be getting a free medialink device, but atleast i'd be able to get it in black, which is what I originally wanted.
Ive noticed this too and its really annoying me. Ive tried multiple roms including the new asop carbon rom and its even on that.
Mr Sliff said:
Ive noticed this too and its really annoying me. Ive tried multiple roms including the new asop carbon rom and its even on that.
Click to expand...
Click to collapse
In addition to the phones I exchanged, every display model that I've come across has had it. I'm was a bit surprised at first that not many people have come across this. I'm starting to think that maybe the One has a PWM backlighting, which some folks are sensitive to and some don't even notice. I'm in the former category and I think you are too. It a shame really that this problem exist. Besides that, I couldn't find any other faults with the phone. It was perfect in every other aspect
I've run Into the same exact behavior using the HTC droid DNA with both sense 4+ and sense 5 ROMs. I smell tomfoolery afoot.
Screen Flicker
I'm glad I'm not the only one that has noticed this. It doesn't stay that way very long for me, but it is quite annoying. Seems to happen when there's a white or light-colored background the most. So I guess there's nothing specifically wrong with my phone and we'll either have to live with it or wait until someone figures out how to fix it?
I guess most people don't notice this.m it's extremely irrational going between this and my tablet and having the black.ighting flashing in my face when I scroll through webpages.
Change the minimum brightness level from usual 10 to 1. It doesn't modify the autobrightness level map so automatic brightness won't be lowered (though it can be easily adjusted on CM11).
This is so far exactly the same as GravityBox offers (modifying 'config_screenBrightnessSettingMinimum').
But Minimum Brightness offers one unique feature - it also modifies the lower brightness levels in MX Player (free/paid). Because no matter whatever you use manual or auto brightness, MX Player always uses minimum brightness of 0.05 (12/255, 19/255, 27/255, 36/255...). To actually lower the brightness, you would have to turn off brightness control in MX Player or use one of many 'overlay filter brightness app'.
So Minimum Brightness module retains the same quadratic function for brightness levels but includes lower values (1/255, 4/255, 9/255, 16/255, 25/255...).
Minimum Brightness uses value 1/255 which might not be suitable for every display (meaning LCD) but it suits perfectly my Super AMOLED screens (Galaxy S5 / Galaxy Tab S 8.4) and watching videos at night is still enjoyable.
There are many excellent auto brightness apps (Lux, Darker etc) that can use overlay filters to lower brightness even more so it's up to everyone to try and decide.
This module has been merged into new module http://forum.xda-developers.com/xposed/modules/mod-xposed-tweaks-cm-t3279109. Please check that module for any future updates.
Hello! Thanks for the mod, I will test
Works very nice on Xperia Z2, however minimum brightness is absolute darkness Could you please add an option to define minimum brightness value?
_mysiak_ said:
Works very nice on Xperia Z2, however minimum brightness is absolute darkness Could you please add an option to define minimum brightness value?
Click to expand...
Click to collapse
The situation is the same on my Xperia SP. When I set the brightness to miniumum the screen is totally black, also when the backlight decreases after 10 seconds screen gets black.
Hi! Tried min brightness but when screen is set to the lowest level, I get a white screen after locking the phone.
Sent from my DIAMOND D1 using XDA Free mobile app
Really great tweak!! I'm noobie in Android enviroment with my new Elephone P3000S and the lowest screen brightness is to high for me so your tweak is very usefull.
I also have the issue that the lowest brightness level sets the screen completly black and I have been scared for 1 hour truing to solve a completely black, touching all buttons but the phone didn't "wake up". Finally, pressing power buttom + volumen up + home soft key it has worked :angel:
So it would be very important to prevent black screen by allowing the user to set the minimun level.
Thanks!
Hey, I know making GUI is a pain in the ass so can you please make alternative version with minimum brightness set to 2? That will satisfy most of people complaining here. Your app is currently the only dimmer working on lollipop.
Dri0m said:
Hey, I know making GUI is a pain in the ass so can you please make alternative version with minimum brightness set to 2? That will satisfy most of people complaining here. Your app is currently the only dimmer working on lollipop.
Click to expand...
Click to collapse
I will have a new device soon so that could make me change my mind about lowest value and UI.
@Dri0m
In the first post you can find archive containing multiple versions of module with different low values.
How to disable this module...?
I installed this module last night, enabled it in Xposed Framework, but did nothing with it. Then this afternoon I opened the Settings menu, went to Display, and before I could do anything else I received a phone call. As I terminated the call, the screen flashed, the phone rebooted--and after restarting it is completely, or almost completely blank. If I repeatedly tap the power button I get a fraction-of-a-second glimpse of the SIM PIN screen at normal brightness. This leads me to the suspicion that, by some weird combination of bad luck and an accidental touch of a finger after terminating the phone call, that the Minimum Brightness somehow got set--although why the phone then rebooted I don't know.
Anyway, by luck and good judgement I finally managed to enter the correct SIM PIN and then the phone unlock PIN. However, I can do nothing else. The screen is still blank, and as the phone is currently unlocked I don't want to touch the power button. Before sending the phone back to the manufacturer or anything drastic like that, I would like to try disabling the Xposed Framework. Whilst trying to find something useful in Windows Explorer I found Xposed-Disabler-Recovery.zip in the Internal storage\Android\data\de.robv.android.xposed.installer\files folder on my phone. I assume that this should be what I need. However, as I cannot see anything on the screen I would need to know the exact buttons to press, in which order and how many times etc, in order to enter the Recovery menu and do what is needed. According to the phone manufacturer the OS is unmodified Android 4.4.2., although strangely they will not even tell me which keys to press to enter the Recovery menu (long story, the upshot is, they flat out refuse to help apart from suggesting returning the phone).
Note that I only suspect it is the Minimum Brightness module that is causing the problem, however the problem did not exist before yesterday (when I installed the module), and as I was about to do something with the brightness when the phone rebooted itself, it seems too much of a coincidence to be anything else. If I cannot disable the module/framework, the only other thing I can think of is a factory reset--but again I would need to know exactly which buttons to press, in which order etc. Unfortunately at the moment USB debugging is not enabled, and again without the screen I cannot access it to turn it on.
Any help or suggestions hugely appreciated.
PL
@Papalazzzaru
Xposed now sports a safemode which allows you to disable Xposed during bootloops. To disable Xposed, you'll have to repeatedly tap one of the hardware buttons (Power, Volume, or Home) on your device during startup.
During boot, your device will vibrate twice when it detects the first key press. You'll then have five seconds to press that same button four more times, with each keystroke producing a short single vibration. After ending with a long vibration, your device will disable and prevent most of Xposed's actions, allowing you to easily troubleshoot problematic modules.
Sorted
Outstanding, thanks.
Papalazzzaru said:
I installed thi............. gely appreciated.
PL
Click to expand...
Click to collapse
Device model please?
Caterpillar S50, on Android 4.4.2, baseband version LTE_S0201121.0_S50_0.017.00.
it is compatible with lollipop?
imam88 said:
it is compatible with lollipop?
Click to expand...
Click to collapse
The MX Player part still works. I don't know about the lowest value of brightness in general but at least with CM12 & Samsung the brightness goes to the hardware minimum by default.
Thanks, this is exactly what I want.
Could you make it for LP ?
I want my phone be absolute zero brightness for driving navigation.
Tested it on CM12.1 Nightly on the Nexus 6. It works here, but on 0 the screen is a bit purple. However, I guess this is the screen's fault
Gesendet von meinem Nexus 6 mit Tapatalk
moneytoo said:
The MX Player part still works. I don't know about the lowest value of brightness in general but at least with CM12 & Samsung the brightness goes to the hardware minimum by default.
Click to expand...
Click to collapse
Yes it works
This module seems to be working well on the Moto X Pure Edition (Motorola xt1095) running Lollipop 5.1. It's an AMOLED screen, and I personally find the minimum brightness on 5.1 too bright, so this has helped solve that.
Hi guys,
I'm in love with my Honor 9 (and with my girlfirend obviously, she's standing right there when I'm writing this post ) BUT there are some issues.
1) The auto-brightness isn't working as it should. Previously I had G3 and the auto-brightness was amazing but with Honor 9 it seems to do whatever the phone wants or what. I'm outside on the sunny day, want to take some photos but the screen is on it's minimal brightness and reacts very slowly or not at all and when I move the slider to the point of max brightness the screen is still darker than it should be (I got the max brightness when I turn off the auto-brightness only). Overall the auto-regulation is sh*t. Do you have the same issue?
2) From what I found this is a well known bug with auto-brightness. The screen is dimming when I open some apps like GMail, Chrome etc. and it's really annoying. Overall the brightness is wierd and even with the auto-regulation off and display on max brightness is dimming sometimes. This should be problem with the EMUI 5.x so I have three questions. Do you have the the same issue? Does B130 solve this (I wasn't lucky to install it and now I can't find it, phone says B100 is the most recent version - they stopped the update?)? Does any of custom ROM's solve this?
Thanks a lot.
I'm on stock ROM B100, EU version, CZE.
That happens with almost any Honor device with nougat (EMUI 5)
In other words, they don't give a fu*k right?
It seems so
Thought so. Can it be solved with other ROM?
I don't know, I've never tested a custom ROM on honor 9
Hi all,
This is my first Huawei phone. I noticed that brightness of the screen will reduce (darken) for some apps, eg fb, chrome, dialer, even the auto brightness is unchecked. Do you experience the same?
It's a feature to prolong battery, all Huawei phones has it.
gm007 said:
It's a feature to prolong battery, all Huawei phones has it.
Click to expand...
Click to collapse
Yeah ok, thanks.
How do I get rid of the "feature"?
It's making the phone completely rubbish to use.
If I turn "Auto brightness" ON, the phone adjusts the brightness according to the lighting conditions around it (the screen does NOT go dim when launching apps).
If I turn "Auto brightness" OFF, the phone DIMS the screen when launching apps.
Come on HUAWEI!!! If I want the screen to auto adjust, I will set it to auto adjust.
I turned off auto brightness, toggled brightness to max and used the chrome browser. The brightness remains constant. No issues for me.
ssang8888 said:
Hi all,
This is my first Huawei phone. I noticed that brightness of the screen will reduce (darken) for some apps, eg fb, chrome, dialer, even the auto brightness is unchecked. Do you experience the same?
Click to expand...
Click to collapse
After update today to Oreo:
Same Problem with Huawei Mate 9 Update MHA-L29 8.0.0.361(C431)
It's A BUG not a feature.
After rebooting it`s okay and after standby and on again same problem again!
With Android 7 no problem!!!
Hi,
I had the same problem. In developer options I had "Force GPU rendering" enabled and that caused the issue.
Just disable it. Reboot the phone and it should be ok. When it does not help, "Restore default settings" in the developer options and reboot again.
gabmac said:
Hi,
I had the same problem. In developer options I had "Force GPU rendering" enabled and that caused the issue.
Just disable it. Reboot the phone and it should be ok. When it does not help, "Restore default settings" in the developer options and reboot again.
Click to expand...
Click to collapse
No it's not working. I hqven't this option enabled, and if I open chrome it will dim a little.
I enabled GPU rendering and that sorted it thanks
Scrap that it's still doing it
Automatic Brightness Issues..
I have similar issue with the one wrote here in xda - https://forum.xda-developers.com/mate-10/help/brightness-automatically-reduced-apps-t3697589
That is even with the auto brightness ticked-off and smart screen feature also off, the screen will automatically dim after few seconds I opened the Facebook app for example.
I tried opening the Hi-Care app but it doesn't has this problem.
Can Huawei fix this very annoying bug soon?
I believe majority of users would not affected by this because they set their brightness less than 50%. But for those who prefer bright screen like me, this is extremely annoying feature even it said to help prolong battery life!
Thank you.
Would a custom ROM fix this issue ? Only reason I would root this phone ! Hopefully get one soon now that we have a custom recovery.
Can you try exempting from battery optimization? Search for "Configure Apps" in settings, go to special access, and then "Exempt from battery optimization"
I personally don't notice this issue, so I can't test it.
Try to disable "Increase Readability in Sunlight" at developer options
Same exact problem here on my Mate 10 Pro - first noticed it a couple days ago, after i had the phone for a day or two. It's a very slight change - I mainly notice it in Chrome and Facebook. Some apps do it, but not all. Basically, when you launch the app, the whites are normal brightness according to your set brightness, then within half a second, it dims just slightly - like 10-20%. Then if you press the home button, you can see a slight change again to normal brightness as the app fades out. Not the end of the world but still a bit annoying. I never noticed this with my Mate 9 (which didn't get Oreo yet). Would be nice to have a fix for this.
hrn85 said:
Try to disable "Increase Readability in Sunlight" at developer options
Click to expand...
Click to collapse
That's solved it :good:
marra2 said:
That's solved it :good:
Click to expand...
Click to collapse
Did you restart your phone or do anything after? i changed the setting and don't see a difference - seems like it still does it.
Just compared to my son's mate 10 Pro and his screen is actually brighter on the Facebook app and all our settings are the same so must be different panel.
ssang8888 said:
Hi all,
This is my first Huawei phone. I noticed that brightness of the screen will reduce (darken) for some apps, eg fb, chrome, dialer, even the auto brightness is unchecked. Do you experience the same?
Click to expand...
Click to collapse
Bro, Switch off everything in Setting>>Smart Assistance.
Make everything to off, surely it will help you.
The "adaptive brightness" is bugged and dims the screen on certain applications, regardless of what options you have turned on or off. Huawei confirmed it is an EMUI issue. Who knows if they'll actually resolve it as they don't see it as a major issue.
It was major enough for me that I sold my Huawei Mate 10 after a few days.
i dont have it in 8.0.0.137. bug was present in 8.0.0.128. atleast for me. there is maybe sligt dim for like 5% in music sometimes and thats it as far as i can tell
Same issue here, tried many different fixes and attempts to disable it, still happens in all apps/games. It is noticeable immediately once the app/game has been launched.
It feels like a 10-15% decrease in brightness. Hopefully this is fixed in the next update.
Ps. I previously had the Mate 9, had the very same problem!!!
I'm used to having my Android phones use apps like KinScreen or Gravity Screen to keep my screen on by motion. On my new Mate 10 (ALP-L29 8.0.0.119 (C636) I'm finding that no matter what I do, the phone's setting for display on time always control, even though I've excepted out both apps from battery optimization and from automatic control of their launch (manually set to run in the background). Anyone experience the same issue or have any thoughts? I don't know if this is an Oreo problem or a Miui one. Thx.
I am having the same issues, no matter what, with persistent notification active, the screen does not stay awake with kinscreen. Installed Wakey, seems to be working at least sometimes... Should be based on your eyes watching the screen...
According to TecTiq, the maker of KinScreen, it's a Miui problem. I'm not the only one to report it. Oh well....
One other possibility is to set your default screen timeout to something long, and then install Proximity Service, which seems to work well on the Mate 10 and turns on and off your screen by covering the proximity sensor. Creates a permanent notification, but installing AutoNotification cures that (as well as the other running notifications, like background Android processes, that you don't want).
EDIT: Nope, belay that! Once the phone sleeps, Proximity Service is still killed (even if excepted from Launch and Battery Optimization). Back to the drawing board....