HELP! Broken/Innacurate brightness slider - Samsung Galaxy A7 (2018) Questions & Answers

So I flashed an unofficial PixelExperience 12.1 GSI on my SM-A750FN and everything was working fine. Except the brightness slider. I had to turn the brightness all the way up to see the screen clearly.
Could anyone tell me how to fix this?
Here's a video from last night

This is a GSI, meaning that it doesn't fully support all devices. The slider is unfortunately broken on all GSIs, there's not much you can do about it.

Related

[Q] X10 Mini Pro screen brightness issue

Hi,
I've upgraded lately to MiniCM10-4.1.0 by @nobodyAtall on my X10 Mini Pro. To get everything fixed, I've installed as always @allesand fixset... And here my problem occured. When I install it, HW keyboard works properly, LED works as charm, but I can no longer set brightness of a screen. When I use setting slider keyboard backlight changes just fine, but screen brightness is still the same. Only when I activate "Ultra brightness" it gets brighter. I've tried to install older versions of this fix but nothing works. I'd be grateful if someone would check that.
Riggs93 said:
Hi,
I've upgraded lately to MiniCM10-4.1.0 by @nobodyAtall on my X10 Mini Pro. To get everything fixed, I've installed as always @allesand fixset... And here my problem occured. When I install it, HW keyboard works properly, LED works as charm, but I can no longer set brightness of a screen. When I use setting slider keyboard backlight changes just fine, but screen brightness is still the same. Only when I activate "Ultra brightness" it gets brighter. I've tried to install older versions of this fix but nothing works. I'd be grateful if someone would check that.
Click to expand...
Click to collapse
it is a Problem of minicm10
please install the latest nigthly .. The latest"! It is fixed there
allesand said:
it is a Problem of minicm10
please install the latest nigthly .. The latest"! It is fixed there
Click to expand...
Click to collapse
Thank you very much.
Edit 1:
Nope, latest nightly didn't fix anything. Brightness still stays the same after installation of the fix.

Torch brightness in CM roms

Hi everyone !
I don't know if you remember how we did use the torch in kitkat versions of CM, there was an app called torch, and we were able to enable or not the full brighness of the flashlight.
Since lollipop, the torch function is implemented in AOSP, so the torch app was removed.
In todays versions of cyanogenmod, the torch brightness is limited, and I never found a way to get full brightness again.
The only way was to switch to sultanxda's rom, but I would like to go back to official CM nightlies.
Do you know if there is a way to "fix" this problem ?
Thanks in advance !

[DISCONTINUED - Use LOS official][UNOFFICIAL][20190706] LineageOS 16 Oneplus 7 Pro

Note: Since the patches essential for making this device work has been merged into LineageOS main repo, there is no need to maintain a separate unofficial build anymore. All fixes go to the official repository and you can expect the official LOS nightly builds to contain the most updated code. You can still use this thread for bug reports though. But bear in mind that some bugs that only appear on specific batches and cannot be reproduced on our devices are harder to fix.
Introduction
This is an UNOFFICIAL build of LineageOS for OnePlus 7 Pro (5G version NOT TESTED, probably won't work). While most features should be working, remember that this is a very early version and things could break, especially for a device as new as this one. I have literally just got hands on it last weekend and spent a few days fixing issues like the fingerprint scanner and motorized front camera. Please always flash with caution.
What's working
- All basic stuff like telephone, bluetooth, nfc, camera, volte, etc.
- Fingerprint scanner (works but with a few minor issues that doesn't affect using it)
- Front camera motor
- Light sensor (sort of, read below for information)
- 90hz screen (with some bugs described below)
Known Issues + TO-DOs
- When booting, the system will alert you of an "internal problem". This is completely fine, just ignore it for now no more internal problems since 20190629 because it comes with its own vendor image.
- Bluetooth audio not working sometimes. Fixed in 20190622
- Auto brightness doesn't work. Partially fixed in 20190622
- In some cases the phone will crash when playing audio. Seems to be problem of AudioFX. I'm looking into it. If you get stuck in recovery after the phone crashes, you can fix it by simply re-flashing anything. Even re-flashing Magisk will work. Fixed in 20190624
- Light sensor doesn't work exactly as it is in official ROM, causing some issues with auto brightness. This is due to the fact that the light sensor is located under the screen, and OnePlus seem to have some magic in their frameworks code to cancel the effect of the screen. For now, I did a very very dirty hack to make it at least work, but no magic is implemented. Expect some issues with this thing. If you find it annoying, I'd suggest disabling it at least for now.
- I have tried to implement an algorithm to correct the readings of the in-display ambient light sensor, but it is still very very funky especially in low-light environment. Fixed since 20190706
- Fingerprint scanning has some quirks here and there. Sometimes the screen goes entirely black except for the scanning area, sometimes the screen may flash a little bit while scanning (tried to reduce it since 20190629). On landscape mode it appears at the wrong place. (fixed since 20190629) But it at least works. I am working to figure out exactly how to make it perfect but it would take some time. (These were also bugs present on the OnePlus 6T / Xiaomi 9 implementation. I have tried to clean them up and fixed some of the issues that were present. At least the screen now doesn't dim like crazy as on OnePlus 6T / Xiaomi 9 implementation, because it dims the correct amount to make screen area other than the scanner circle to appear as bright or dark as it was before increasing the brightness for scanning. Also it works around the somewhat eye-straining Android brightness-changing animation by using a kernel interface provided by OnePlus, exactly as how they did this in their official ROM.)
(Note: if your fingerprint icon gets stuck on home screen, try the following steps: lock your phone, turn on the screen, swipe up for password/pattern unlock, then immediately press the back button, then use fingerprint to unlock. I'll try to get this fixed in the future.)
- Screen colors and refresh rate is a bit messed up when booting. If you find your screen laggy or strange, just turn it off and turn it back on. Fixed by a hack since 20190629, but expect a slight short blink when booting.
- No 48MP for camera. Kind of what you'd expect for these imx586 devices.
- This ROM doesn't come with its own vendor image yet. It needs to be flashed over OxygenOS to function properly. Comes with full vendor image since 20190629
- Importing keys to TEE does not work. Do not even try it, you may lose access to your data.
- SELinux is permissive.
How to flash
Use the TWRP recovery here https://forum.xda-developers.com/oneplus-7-pro/development/recovery-unofficial-twrp-recovery-t3931322
Since 20190629, you DO NOT need to flash OxygenOS before flashing this ROM anymore.
Note: this rom is only tested with firmware images from oxygen 9.5.5 for now. If you encounter any problem for things like mobile data, please try using firmware from 9.5.5 first.
This procedure is a bit tedious, but it's only because we are on an A/B system device.
1. Restart to bootloader, use `fastboot boot` to boot into the TWRP image
2. In TWRP, wipe data (better: format data)
3. Flash this LineageOS image (this installs it to the other slot)
4. Go to Reboot -> Bootloader (this will reboot to the other slot)
5. Again, use `fastboot boot` to boot into the TWRP image
6. Install OpenGAPPS / Magisk etc. (this installs to the current slot)
7. Reboot system
Downloads
20190706-1: https://mega.nz/#!LQxRhawQ!23i11FlIsO6LY35P1K3F1W0KRHGw8ozkUM66C3icdio
A lot of development has been going on this week due to luk1337, maintainer of official LineageOS for multiple devices, joining the party. Most of changes this week are either directly done by luk1337 or inspired by him.
- Corrected the calibration algorithm of the ambient light sensor. It works mostly fine now.
- Fixed support for in-display fingerprint sensor in Always-on Display mode.
- Fixed support for Wi-Fi Display
- Fixed LiveDisplay calibration / reading mode.
- Revamped the icon of in-display fingerprint scanner
- Fixed GNSS (GPS) support. Before this release, all the location information was network-based.
- Fixed NFC HCE.
- Added support for free-fall protection and manual-press warning for front-facing motorized camera.
- Fixed battery usage data.
History versions:
20190629-1: https://mega.nz/#!rRYRmIRY!4WW0FXYkWvu39t0LF-2RbRkl0aDfSbz_kjgZPotdLMQ
- Now comes with full vendor image, no need to flash OxygenOS vendor anymore.
- No more "internal problems" on boot anymore.
- Rebased the kernel
- Reduced screen blinking when fingerprint scanner is active (due to the rebased kernel)
- Hacked to make the screen work at 90Hz right after booting. No need to lock & unlock anymore (but expect a short blink while booting)
- Fixed double-tap-to-wake. Now the option in settings should be working.
- Fixed the position of fingerprint scanning circle when the screen is rotated.
- Tried to fix the ambient light sensor, but its behavior in an extremely low-light environment is still pretty funky. I hope maybe OnePlus can open-source their official algorithm to correct this thing...
20190624-1: https://mega.nz/#!nF4DwADT!xZ8tbrkCGtWL3A7DYIV_e6GfiprqGJXHEZLqufPCmmg
- Fixed crashes caused by playing audio
20190622-1: https://mega.nz/#!OMASTCZK!wXH7WdvVdAxqv7VjGzPwHy40Pk6cfghTGao-7u-PJQk
- Fixed bluetooth audio
- Added dash charging daemon
- Hacked to make the light sensor ( + auto brightness) at least work
20190621-1: https://mega.nz/#!rEglBKxS!OpA3tNSzlnpJ5pL8PW-x9Ax8Ee695GeIaDi4c-qcrw0
Stock Camera App
I have a modified version of the OxygenOS camera app here for use with LineageOS. It mostly works after a simple hack, however:
- No 48MP available. There must be some magic in official ROM on the frameworks side, and I doubt there is much to do about it
- Gallery integration does not work. Clicking on the gallery shortcut in camera will always say "no photos". You need to go to gallery app manually.
- Slow motion works but it will show a black screen when first started. Switching to another app and then back will fix it.
Remeber that I am not a professional camera modder at all. I have little knowledge in this field, and this is only a fallback solution given that nobody else has worked on modding the official camera of this device yet.
OnePlusCamera-guacamole-20190623: https://mega.nz/#!3YRWSKBR!lrRlslmenLXIBoUQQZnqydogKG4GZxmylX6rVHprHQs
Thanks
- LineageOS (obviously) and especially luk1337 (who maintains LOS for oneplus 6t also)
- OmniROM & phhusson (for their fingerprint scanner implementation as a basis, I cleaned it up a bit and abstracted device-specific logic from the somewhat messy frameworks implementation out to HAL. I think their original implementation for Xiaomi 9 / OnePlus 6T should have been done this way also.)
- All contributors to OnePlus 6T device tree of LOS & OmniROM (I took a good amount of code from there)
- HolyDragon guys (for their early work on the kernel)
- aviraxp
- Guaiyihu
XDA:DevDB Information
LineageOS for Oneplus 7 Pro, ROM for the OnePlus 7 Pro
Contributors
PeterCxy, ashwin4rc, holydragon
Source Code: https://github.com/PeterCxy/android_device_oneplus_guacamole
Kernel Code: https://github.com/PeterCxy/android_kernel_oneplus_sm8150
ROM OS Version: 9.x Pie
ROM Kernel: Linux 4.x
Based On: LineageOS
Version Information
Status: Beta
Created 2019-06-21
Last Updated 2019-06-21
Woohoo! Let the custom ROMs begin...
Let's begin the voyage.
+1 [emoji106]
Thank god for more rom development. I was starting to lose hope on this.
Thanks for this see piece of work.
My only question is atm why 9.5.5 if we have 9.5.8 already?
Thanks in advance #kudos
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Flashaholic said:
Thanks for this see piece of work.
My only question is atm why 9.5.5 if we have 9.5.8 already?
Thanks in advance #kudos
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Click to expand...
Click to collapse
+1
mcn1970 said:
+1
Click to expand...
Click to collapse
Flashed over 9.5.8 just fine. You will get vendor internal problem error tho
Any chance of it working on 1901 aka OnePlus 7? Should be working If the model check doesn't hardcode it to use on pro
Looks like on fps test I'm getting 90 although earlier I was getting 60 weird it bounces around like that lol also can't seem to get my Galaxy bids to connect or even get seen.
Edit. Also faceunlock seems to work pretty well also.
Flashaholic said:
Thanks for this see piece of work.
My only question is atm why 9.5.5 if we have 9.5.8 already?
Thanks in advance #kudos
Gesendet von meinem GM1913 mit Tapatalk
Click to expand...
Click to collapse
Simply because when I started it I didn't get 9.5.8. Didn't bother to update the blobs. But the rom should work ok on 9.5.8.
joemossjr said:
Looks like on fps test I'm getting 90 although earlier I was getting 60 weird it bounces around like that lol also can't seem to get my Galaxy bids to connect or even get seen.
Edit. Also faceunlock seems to work pretty well also.
Click to expand...
Click to collapse
Looks like there might be some problems with Bluetooth audio. Will look into it later.
PeterCxy said:
Looks like there might be some problems with Bluetooth audio. Will look into it later.
Click to expand...
Click to collapse
Also auto brightness seems to not work
Very nice! I hope in future build we might be able to choose between fhd+ and QHD resolution
Hopefully the Muppets repo will fork some, thanks for your work
Thanks for your work,I have already flash the img, and hope to find some bugs for you
How would it work if you don't have the EU version since 9.5.5 image is not the global version ?
xdamember143 said:
How would it work if you don't have the EU version since 9.5.5 image is not the global version ?
Click to expand...
Click to collapse
Use any one it doesn't matter
Nice to see here! Kudos
Running this baby
Only bugs
1. Bluetooth earphones won't connect to music but works with calls.
Really miss that 90ghz option, waiting for that to be added.

Screen mode switching to saturated randomly.

Did you guys ever noticed phone randomly switching screen to saturated mode?... Happens randomly, kind of often.
While in settings it will still show you're on sRGB or natural, but actual calibration jumps to what looks is AMOLED white gamut. Switching it back to your preferred mode fixes things for some time until the next random switch.
I'm not sure if this is rom related or not, seems like I had this problem on multiple OBs and stables on Android 10, with different kernels.
Currently on OB12 + xXx + arter kernel and this issue is present.
I guess I'm the only one having this problem... one every OOS beta and latest stable with stock kernel, screen calibration literally jumps to wide gamut after locking/unlocking the screen.

			
				
Ice Bear has experienced this issue ever since upgrading to OOS 10 and it's been this way since the first version of OOS 10. Screen calibration was fine on OOS 9.
I noticed the switch happens when you receive a call almost 90% of the time. I had this problem since 10.0.0 and on beta as well. I provided system logs to help OnePlus teams to track this bug down and since then, I switched to vivid and did not bother much. Currently I don't know if it still exists, what's your build?

How to fix ambient light sensor on a Treble GSI ROM?

Hi!
I have installed Resurrection Remix 8.6.4 GSI on my SM-T590.
After a few hours of testing, seems like all the functions I need are working except one, the automatic brightness setting. The sensor (CM3323E) is detected in sensor testing apps, also they can read the light value. Automatic brightness icon shows up next to the brightness slider, but it doesn't do anything, no new logcat messages are produced when I tap the icon.
Also, I have issues with WiFi and Bluetooth quick setting toggles. If the status bar icon shape is set to circular, and I tap one of them, SystemUI crashes because of a Resources$NotFound exception. I think this isn't related to the brightness sensor, more like a ROM bug, but who knows.
Where should I start debugging? I'm relatively new to Android development.
UDPSendToFailed said:
Hi!
I have installed Resurrection Remix 8.6.4 GSI on my SM-T590.
After a few hours of testing, seems like all the functions I need are working except one, the automatic brightness setting. The sensor (CM3323E) is detected in sensor testing apps, also they can read the light value. Automatic brightness icon shows up next to the brightness slider, but it doesn't do anything, no new logcat messages are produced when I tap the icon.
Also, I have issues with WiFi and Bluetooth quick setting toggles. If the status bar icon shape is set to circular, and I tap one of them, SystemUI crashes because of a Resources$NotFound exception. I think this isn't related to the brightness sensor, more like a ROM bug, but who knows.
Where should I start debugging? I'm relatively new to Android development.
Click to expand...
Click to collapse
How dit u get gsi's to work on the sm-t590?
Tab a 10.5 right?
Mikxx said:
How dit u get gsi's to work on the sm-t590?
Tab a 10.5 right?
Click to expand...
Click to collapse
Yea, I have Tab A 10.5 (2018), SM-T590.
Basically I installed TWRP from here: [RECOVERY][ROM][ROOT][UNOFFICAL] TWRP 3.3.1-0 + Lineage [SM-T590/SM-T595/SM-T597] | XDA Developers Forums (xda-developers.com)
Then I just downloaded some GSIs and flashed them to see which one works, with some changes to the original post. I may create an updated guide for installing GSI ROMs using MrHomebrew's TWRP without having to mess with SD cards, etc, but you can follow the original guide to have a mostly working system.
You can download ROMs from here: Generic System Image (GSI) list · phhusson/treble_experimentations Wiki · GitHub
I'm still not sure about how that A-only / AB thing works, if you have updated to Android 10 on stock system, AB ROMs with A64 binder will run.

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