Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Screen brightness broken (Sierra 10.12.4 beta 3)

metatext said:
Thanks to @MisutaaUrufu there is a solution! Replace AppleBacklight.kext and AppleBacklightExpert.kext in /System/Library/Extensions, and DisplayServices.framework in /System/Library/PrivateFrameworks with ones from 10.12.3 and we're good!
Click to expand...


Thank you MisutaaUrufu! It's working now :):):)

Step 1.
Download the combo: https://support.apple.com/kb/DL1905?locale=en_US

Step 2.
Download Pacifist: https://www.charlessoft.com/

Step 3.
Use pacifist to open the combo go to the folder /System/Library/Extensions right click on it and install AppleBacklight.kext and AppleBacklightExpert.kext to their default location.

Also go to /System/Library/PrivateFrameworks and install to the default location DisplayServices.framework

Step 4.
Restart and voila!
 
Warrior_ny said:
Thank you MisutaaUrufu! It's working now :):):)

Step 1.
Download the combo: https://support.apple.com/kb/DL1905?locale=en_US

Step 2.
Download Pacifist: https://www.charlessoft.com/

Step 3.
Use pacifist to open the combo go to the folder /System/Library/Extensions right click on it and install AppleBacklight.kext and AppleBacklightExpert.kext to their default location.

Also go to /System/Library/PrivateFrameworks and install to the default location DisplayServices.framework

Step 4.
Restart and voila!
Click to expand...

OMG you guys are a life saver!! Gonna try it soon! Been waiting for this fix for quite sometime.

Btw, since high Sierra is coming out soon, anyone can confirm if the fix will also work fine on high Sierra?
 
Warrior_ny said:
Thank you MisutaaUrufu! It's working now :):):)

Step 1.
Download the combo: https://support.apple.com/kb/DL1905?locale=en_US

Step 2.
Download Pacifist: https://www.charlessoft.com/

Step 3.
Use pacifist to open the combo go to the folder /System/Library/Extensions right click on it and install AppleBacklight.kext and AppleBacklightExpert.kext to their default location.

Also go to /System/Library/PrivateFrameworks and install to the default location DisplayServices.framework

Step 4.
Restart and voila!
Click to expand...
i heard this kills NightShift, do you no anything about this?
 
Warrior_ny said:
Thank you MisutaaUrufu! It's working now :):):)

Step 1.
Download the combo: https://support.apple.com/kb/DL1905?locale=en_US

Step 2.
Download Pacifist: https://www.charlessoft.com/

Step 3.
Use pacifist to open the combo go to the folder /System/Library/Extensions right click on it and install AppleBacklight.kext and AppleBacklightExpert.kext to their default location.

Also go to /System/Library/PrivateFrameworks and install to the default location DisplayServices.framework

Step 4.
Restart and voila!
Click to expand...

Hello,

I`ve found this thread after encountering the brightness issue myself. So this method seems to be working but i can`t try it out that easily because of my bad internet connection (DSL2000... What year is it?).
Because of that I wanted to ask if somebody could provide me the needed kext files. This would help me out so much!

Thanks in advance :)
 
nabilzhafri said:
OMG you guys are a life saver!! Gonna try it soon! Been waiting for this fix for quite sometime.

Btw, since high Sierra is coming out soon, anyone can confirm if the fix will also work fine on high Sierra?
Click to expand...

Yeah everything works on High Sierra 10.13. Thanks guys!
 
son_bananana said:
stopped working after 'macOS High Sierra 10.13 Supplemental Update' though
Click to expand...
Also, now every time I close my MacBook and open it again, the screen is pitch black and I can't turn the brightness on, so I have to manually shut down and restart the laptop. Does anyone else have this problem?
 
  • Like
Reactions: frazras
Pet2k said:
Hello,

I`ve found this thread after encountering the brightness issue myself. So this method seems to be working but i can`t try it out that easily because of my bad internet connection (DSL2000... What year is it?).
Because of that I wanted to ask if somebody could provide me the needed kext files. This would help me out so much!

Thanks in advance :)
Click to expand...

I have zipped the relevant files here. Just drop them in their respective paths:
Zip File: http://bit.ly/MacScreenFix

/System/Library/Extensions for AppleBacklight.kext and AppleBacklightExpert.kext
and
/System/Library/PrivateFrameworks for DisplayServices.framework

You may not have access to replace them, so you may have to restart, and while rebooting, press the command button and R. Then from the utilities menu, choose terminal. then type
csrutil disable

restart and install these files in their location, restart again, while pressing command R, open terminal again and type in

csrutil enable

then restart into regular mode and hopefully you should be fine.
 
Last edited:
son_bananana said:
Also, now every time I close my MacBook and open it again, the screen is pitch black and I can't turn the brightness on, so I have to manually shut down and restart the laptop. Does anyone else have this problem?
Click to expand...
Same problem after updating to 10.13.1. God ****ing damit.

EDIT: Installing the 10.13.1 combo Update and applying the patch again worked.
 
Last edited:
  • Like
Reactions: frazras
I have a similar issue on 10.13.4 with an old Apple Cinema HD Display and an early 2013 rMBP in clamshell mode via an external keyboard. Sometimes when I wake the Mac the brightness keys have no effect. Brightness buttons on monitor work but on screen feedback always shows 50% brightness.

My workaround is to go into activity monitor and force quit corebrightnessd a few seconds later the system will relaunch it automatically and brightness keys work once again.
 
  • Like
Reactions: Axeros
son_bananana said:
Also, now every time I close my MacBook and open it again, the screen is pitch black and I can't turn the brightness on, so I have to manually shut down and restart the laptop. Does anyone else have this problem?
Click to expand...

after i updated to High Sierra, my iMac display stopped working, only black screen. i did all kinds of reset, then i had to replace my display hardware i thought it it blew up, or maybe did. after that when i fixed it the brightness adjustment doesnt function. the monitor has the same brightness even when the slider/dots go up and down. it happened the after few hours from using the new software.

i dont know what to do, i jsut hopw my iMac doest break down, yestersay i saw a blue line in my screen and only went away after another rest

looking for an answer to fix the issue, i cant work on a dark screen like this!
 
Warrior_ny said:
Thank you MisutaaUrufu! It's working now :):):)

Step 1.
Download the combo: https://support.apple.com/kb/DL1905?locale=en_US

Step 2.
Download Pacifist: https://www.charlessoft.com/

Step 3.
Use pacifist to open the combo go to the folder /System/Library/Extensions right click on it and install AppleBacklight.kext and AppleBacklightExpert.kext to their default location.

Also go to /System/Library/PrivateFrameworks and install to the default location DisplayServices.framework

Step 4.
Restart and voila!
Click to expand...

Hi, I already have these files and still brightness is not working.
 
idoo said:
Sad to hear it :(

I found temporary solution for 10.12.4 — Brightness Slider from app store works for me
Click to expand...

Thank you!!! I literally just created an account to thank you. Mojave beta on my MBP 2018 15" seemed to of broken the brightness slider on my touchbar and your solution is working for now.
 
metatext said:
@idoo if you click on the link and read what it is referencing it will become clear. Hint: the bug seems to center around the Ambient Light Sensor and its settings.
Click to expand...
It seems that this new update was to force Old Computer Users into updating their old models. Apple knows exactly what they are doing, these are no longer glitches. It's 2018, time to wake up, look up and verify.
[doublepost=1532920129][/doublepost]Which systems are safe these days?
 
The patch of @dosdude1 for the screen brightness worked perfectly until "High Sierra 10.13.6" :) but in "Mojave 10.14" Kernel error :(.

Does anyone have any solution for Mojave?

0x756e6b6e
 

Attachments

  • System Preferences under Display.png
    System Preferences under Display.png
    3.2 MB · Views: 486
  • System Preferences under Display 2.png
    System Preferences under Display 2.png
    1.3 MB · Views: 561
  • EDID.png
    EDID.png
    465.1 KB · Views: 443
msephton said:
I have a similar issue on 10.13.4 with an old Apple Cinema HD Display and an early 2013 rMBP in clamshell mode via an external keyboard. Sometimes when I wake the Mac the brightness keys have no effect. Brightness buttons on monitor work but on screen feedback always shows 50% brightness.

My workaround is to go into activity monitor and force quit corebrightnessd a few seconds later the system will relaunch it automatically and brightness keys work once again.
Click to expand...

Thanks for this workaround - it solved a similar problem I was having on a 2012 Mac Mini with Apple TB Display in High Sierra 10.13.6.
 
  • Like
Reactions: msephton
I installed Mac os mojave on a 20011 MacBook pro but no option for screen brightness... The sound keys work but not the brightness keys or in settings is no option
 
Pet2k said:
Thank you for pointing it out and providing a link! It worked like a charm!
Click to expand...
Thanks for the script, but I got some error when I run this script:

Copying "DisplayServices.framework"...
cp: cannot overwrite directory /System/Library/PrivateFrameworks/DisplayServices.framework/Resources with non-directory /Users/lijc/BacklightPatch/DisplayServices.framework/Resources
cp: /System/Library/PrivateFrameworks/DisplayServices.framework/Versions/A/_CodeSignature/CodeResources: Operation not permitted
cp: /System/Library/PrivateFrameworks/DisplayServices.framework/Versions/A/Resources/framework.sb: Operation not permitted
cp: /System/Library/PrivateFrameworks/DisplayServices.framework/Versions/A/Resources/Info.plist: Operation not permitted
cp: /System/Library/PrivateFrameworks/DisplayServices.framework/Versions/A/Resources/version.plist: Operation not permitted

seems it report some permission issue, any idea? Thanks.
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back