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vanquybn

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Posts posted by vanquybn

  1. I have just add rename to OC and SSDT-PNLF, the devices appear as your laptop (you can see in IOReg attached below), but Brightness control still not working.

    About EFI folder question:

    Yes, I made it myself but the SSDT I copied from Dell Precision 7650, it almost same as 7550 except the cpu.

    I also tried a clean EFI with all SSDT and config option described in Dortania guide, and Brightness does not work: https://dortania.github.io/OpenCore-Install-Guide/config-laptop.plist/coffee-lake-plus.html#acpi

    IOReg20230529.zip

  2. Hello,

    My internal LCD: 15.6", UHD 3840x2160, 60Hz, Anti-Glare, Non-Touch, 500 Nits.

     

    What I have tried: 
    - with or without SSDT PNLF 
    - with or without OC boot arguments
    - all the ig-platform-id for CometLake/IceLake for each SMBIOS MBP16.3 and MBP16.4

     

    The brightness bar appears but brightness cannot be adjusted. Can you advise?

     

    Please see my images attached.

    image.png.cb2e11044cb379d54a0909c5923e5b88.png

    image.thumb.png.0921017e3693e59d240bdadaa85fdf35.png

    image.thumb.png.2f81532bb564fae42993f12616e75471.png

    image.thumb.png.e19cb559daf700cba2efbf43454792ae.png

    EFI.zip 7550-ACPI-FROM-LINUX.zip MacBookPro.ioreg.zip

  3. Use Ubuntu Live USB to boot into your laptop then dump codec by the command:

    cat /proc/asound/card0/codec#0 > ~/Desktop/codec_dump.txt
    (or)
    cat /proc/asound/card0/codec#1 > ~/Desktop/codec_dump.txt
    (or)
    cat /proc/asound/card0/codec#2 > ~/Desktop/codec_dump.txt

     

    Then attache the codec dump to this post. let me see i can create new patch for u

  4. Hi guy. The brightness control doesn't work as sierra right?. I have a question. Does your trackpad crash in System Preferences on 10.12.6 ?.

    Brightness control working fine. Trackpad does not crash

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