Huawei Mate 10 Pro Display dimming - Huawei Mate 10 Questions & Answers

Hey guys,
Just got my Mate 10 pro (BLA-29) Dual sim a few days ago and I am loving it!
Have updated it to the latest Android 8.0 and EMUI 8.0.
However instantly within the first hour of using the phone I noticed a strange issue or bug? Where you can be on the homescreen and the screen will be nice and bright, jump into any app it can be Chrome, whats app, Firefox even Youtube or Google Maps and instantly within 2 seconds or so the screen will dim a little, go back to homescreen or switch between apps and the screen will brighten, but then dim again after 2 or so seconds.
Have looked all over for any adaptive brightness, turned off auto brightness and any battery saver and nada, still dims.
The only difference is it doesn't happen if you whack the brightness up full, then the brightness level doesn't dim. So what gives??
Also while I have your attention, will Huawei ever allow us to Lock the phone to 4G/LTE only mode? Or do we need root for this?
Thanks for reading, I hope someone has an answer for me as I love this phone!

Crombi said:
Hey guys,
Just got my Mate 10 pro (BLA-29) Dual sim a few days ago and I am loving it!
Have updated it to the latest Android 8.0 and EMUI 8.0.
However instantly within the first hour of using the phone I noticed a strange issue or bug? Where you can be on the homescreen and the screen will be nice and bright, jump into any app it can be Chrome, whats app, Firefox even Youtube or Google Maps and instantly within 2 seconds or so the screen will dim a little, go back to homescreen or switch between apps and the screen will brighten, but then dim again after 2 or so seconds.
Have looked all over for any adaptive brightness, turned off auto brightness and any battery saver and nada, still dims.
The only difference is it doesn't happen if you whack the brightness up full, then the brightness level doesn't dim. So what gives??
Also while I have your attention, will Huawei ever allow us to Lock the phone to 4G/LTE only mode? Or do we need root for this?
Thanks for reading, I hope someone has an answer for me as I love this phone!
Click to expand...
Click to collapse
Known issue with brightness auto.
It's an IA thing which change brightness depending on your environment

I agree... I posted a topic about this a while ago... dims slightly with chrome, facebook etc.. isn't much that can be done about it.
I'm guessing it's to prolong the screen life (?), because these apps use predominantly white backgrounds ... but don't really know for sure...

Huawei claims this is a bug affecting every device running EMUI 5.1 and above. The standard Mate 10 also does this and so does the Honor View 10. Highly annoying. I actually sold my Mate 10 after three days largely due to this issue.
I was really excited for the Honor View 10 until I saw it also suffers from it. A fix should be simple but clearly isn't a priority.

Looks like i'll be switching to the Galaxy S9+ because of this - it's super annoying especially in sunlight - very noticeable then.

My screen does not change brightness level when using Chrome...I do not use Facebook. Non-pro version here with LCD.

mine also doing this as well for me its fine but some games it also does this not only my screen dim a little fps also drops!! and its very annoying

I confirm this behaviour on my Mate 10 Pro. Very annoying.

I have a P20 Pro and it does the same (all Huawei with Amoled does this I belive). If I enable auto brightness it seems to stop doing it. Only at manual brightness it keept doing it in certain apps.

I lurked around different sites about this problem and found this to work for me on my Mate 10 Pro. You can test it out yourself and see if it helps
1. Turn-off Power Saving Mode
2. Go to System > Developer Options > Increase Readability Under Sunlight> Toggle Off
3. Then make sure to restart your phone and open your apps (like Chrome) to see if it's still auto-dimming

Hi,
I returned my mate 10 pro because of the dimming issues as was very annoying.
I am planning to get p20 pro instead. Does p20 pro have the exact same issue despite EMUI 8.1?

Fara2018 said:
Hi,
I returned my mate 10 pro because of the dimming issues as was very annoying.
I am planning to get p20 pro instead. Does p20 pro have the exact same issue despite EMUI 8.1?
Click to expand...
Click to collapse
I have heard of it on youtube.
this is no bug though. this "feature" has been around for years and huawei does not admit it. they alwas say its a bug and they gonna fix it but the p9 had this issure already.
Some argue that this is some sneaky way to cheat better battery life and less heating. We all know that the Kirin processor lags behind the others, it can only provide high performance for a short period after 5 min it overheats and gets thermothrottled

Fara2018 said:
Hi,
I returned my mate 10 pro because of the dimming issues as was very annoying.
I am planning to get p20 pro instead. Does p20 pro have the exact same issue despite EMUI 8.1?
Click to expand...
Click to collapse
Yes it has the issue.
Sent from my ASUS_Z01RD using Tapatalk

dannejanne said:
I have a P20 Pro and it does the same (all Huawei with Amoled does this I belive). If I enable auto brightness it seems to stop doing it. Only at manual brightness it keept doing it in certain apps.
Click to expand...
Click to collapse
Can confirm my Huawei Mate 10 Pro, with BLA-L29 8.0.0.145 (C432) also dims the display when using different apps, among them the SMS/MMS app, WhatsApp, Chrome Browser and the built in Notepad app.
As well as dimming the display when »Auto Brightness« is disabled, »Auto Brightness« is automaticly enabled every time the phone is turned on and off, so not possible to permanently disable »Auto Brightness«.
Sent my phone to be repaired or fixed, and was told that the automatic enabling of »Auto Brightness« is a battery saving feature ...
Regarding the problem with dimming in certain apps, it's supposed to be fixed in a later update ... Just wonder when will that actually be ...
/ Alex / Norway /

Previous owner of P9 with this screen-dimming feature. I own Mate 10 right now (C636 134noxloader build) and Mate 10 doesn't have this screen dimming at all, I tried chrome, youtube, and all my other apps, it never dims.

KiwiAKT said:
Can confirm my Huawei Mate 10 Pro, with BLA-L29 8.0.0.145 (C432) also dims the display when using different apps, among them the SMS/MMS app, WhatsApp, Chrome Browser and the built in Notepad app.
Click to expand...
Click to collapse
Just an update.
Wrote to Huawei Norway, and yesterday got an email telling me that Huawai is aware of the issue and it's on their list, and is to be fixed, as far as they know, in late July or August.
/ Alex / Norway /

No, its november and nothing changed, now a huawei mate 20 pro have that bug too.

This is common amongst all EMUI devices (I think) and it is fixed by freezing or otherwise disabling the Power Genius app. If rooted, you can use Titanium Backup or Service Disabler to do this. If you're not rooted, you might or might not be able to do it via adb.
This is a battery optimization feature, and not an auto brightness bug.

nmack58
rvhuynh01 said:
I lurked around different sites about this problem and found this to work for me on my Mate 10 Pro. You can test it out yourself and see if it helps
1. Turn-off Power Saving Mode
2. Go to System > Developer Options > Increase Readability Under Sunlight> Toggle Off
3. Then make sure to restart your phone and open your apps (like Chrome) to see if it's still auto-dimming
Click to expand...
Click to collapse
Thanks for the info solved my p20 dimming problem.

I got a mate 20 pro
rvhuynh01 said:
I lurked around different sites about this problem and found this to work for me on my Mate 10 Pro. You can test it out yourself and see if it helps
1. Turn-off Power Saving Mode
2. Go to System > Developer Options > Increase Readability Under Sunlight> Toggle Off
3. Then make sure to restart your phone and open your apps (like Chrome) to see if it's still auto-dimming
Click to expand...
Click to collapse
got the mate 20 pro and also noticed screen dimming issues, but after trying your fix, it seemed to magically fixed itseld.. still testing it but even i toggle on the Increase Readability under sunlight, it just went away

Related

Auto-brightness issues and screen dimming in apps

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

brightness is automatically reduced for certain apps

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!!!

Keep Mate 10 Screen on by Motion?

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....

Mate 10 Pro: stock ROM problems

Hi.
I have had a Mate 10 Pro (stock ROM, latest update) since the beginning of December and I gradually hate it more and more.
Yes, it is fast, has great screen and battery life etc.
But the software...
My problems are:
- running-in-background-applications watching for notifications (Mi Fit, LightFlow, Pushbullet etc.) are put to sleep (?) when screen is off regardless of the settings in 'Battery' menu. Yes, I have them all on 'manual' control and still they sleep a LOT. That's really annoying.
- AOD (Always-On Display) is a joke. Nothing but sms/call notifications. That's pretty useless. And no 3rd party app can solve it.
- LightFlow has another problem, too: is unable to control the LED at all.
Would (any of) these problems be solved with different ROM? I used to be CyanogenMod user back on Nexus 5, but I don't know the current state of this project.
Yeah, same here.
I have a BLA-L09 and i have the same issue with notifications.
Only calls and sms are in "real time" all other notifications are almost always delayed, or doesn't work at all.
I'm on BLA-L09 8.0.0.137 (C432), i'm hopping next build solve those issues....

Adaptive Brightness Fix?

Did Huawei ever fix the adaptive brightness bug which dims the screen when using certain apps, such as Facebook?
I sold my Huawei Mate 10 a few months ago due to this issue. I've been thinking about giving it another try.
Sammae7 said:
Did Huawei ever fix the adaptive brightness bug which dims the screen when using certain apps, such as Facebook?
I sold my Huawei Mate 10 a few months ago due to this issue. I've been thinking about giving it another try.
Click to expand...
Click to collapse
Not yet, tried to get an answer from Huawei support, but they seem to be not very interested in their customers.
I have a Mate 10 Pro with the latest May update.
Their simple answer was that they are sorry that I was not satisfied with the features of their phones and case closed.
So is it a bug or a battery saving feature to ignore brightness settings when you put auto off.
Explained them that it is little bit stupid to still adjust brightness when you put auto brightness off, it is my decision to use more battery and not Huawei,
The answer of them made the decision to buy never again Huawei stuff.
I lurked around different sites about this problem and found this to work for me on my Mate 10 Pro. You can test it out yourself and see if it helps
1. Turn-off Power Saving Mode
2. Go to System > Developer Options > Increase Readability Under Sunlight> Toggle Off
3. Then make sure to restart your phone and open your apps (like Chrome) to see if it's still auto-dimming
Have a look on Google Play for the Settings Database Editor app and hunt in there. I recall seeing a few entries for the brightness which you could probably tweak. No root needed.
Unfortunately no change for me screen still dims on most apps, chrome etc.
I downloaded the settings editor app mentioned above, deleted the line regarding autobrightness and the problem seems fixed!
helder_gz said:
I downloaded the settings editor app mentioned above, deleted the line regarding autobrightness and the problem seems fixed!
Click to expand...
Click to collapse
Could you post a screen shot of what you deleted please?
helder_gz said:
I downloaded the settings editor app mentioned above, deleted the line regarding autobrightness and the problem seems fixed!
Click to expand...
Click to collapse
Any hint? Thanks a lot

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