Dell Inspiron 7370, Intel 8550U i7 und UHD 620 angebunden über embedded DisplayPort eDP

  • Hallo Laptop Experten. :)


    Ich mache mal hier ein Thema für @tikizondo94 auf. tikizondo94 hat mich und @NoirOSX angeschrieben um Hilfe zu seinem Laptop. Ich starte mal für ihn diesen Thread da das Thema sicher auch für andere von Interesse sein kann und weil mir die Ideen ausgehen. Das Thema wird sicher noch öfters kommen im Forum.


    Problem:
    Der Dell Inspiron 7370 hat ein über eDP angebundenes internes Display. Über einen Externen Monitor haben wir es bereits geschafft das die UHD-620 ihren Dienst verrichtet. Jedoch verweigert die UHD-620 jegliche Verbindung zum Laptop Display bei korrektem Framepuffer. > 00001259. Das Display wird nicht mal angezeigt. Hier ein Bild gemacht vom externen Display.



    Angehängt der für dieses Ergebnis verwendete EFI-Ordner und das was ich zuletzt geantwortet habe. @tikizondo94 Please answer here. More readers can help better.


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    Headkaze write in the WhateverGreen guideline: Removing CNConnectorAlwaysConnected flag for eDP laptop screens on < 10.13.6 (framebuffer-con0-flags=0x00000090). To get the screen as an external.
    I think the same works for >= 10.13.6.


    I see you have tested the following:

    Code
    1. <key>framebuffer-patch-enable</key>
    2. <integer>1</integer>
    3. <key>framebuffer-con0-enable</key>
    4. <integer>1</integer>
    5. <key>framebuffer-con0-flags</key>
    6. <integer>0x00000090</integer>


    Have you also tested this with the other connectors?
    framebuffer-con1-flags
    framebuffer-con2-flags


    Did you find out which connector is connected to your display?


    As already written, HD card works. You only have this Connector problem.
    Therefore the Frampuffer 00001259 is the correct one.


    It would be also fine if we switch to the forum. Maybe there is someone who has the right idea. :)

    Files

    • CLOVER.zip

      (3.28 MB, downloaded 41 times, last: )

    Grüße und Good Hack Michael


    :hackintosh:

    Edited 2 times, last by anonymous writer ().

  • I know its been forever since ive replied to this topic. I actually figured out what the problem was. Austere.J over at TM figured out the issue and created a patch. Which now its deprecated into whatevergreen.kext You just have to add the correct properties into Clover/Devices/Properties for your iGPU.The problem is a kernel panic due to divide-by-zero when injecting the correct properties for your iGPU. Mine being the UHD620. I was using 0x59160000 which is the correct platform-ID.

    But until you add the correct properties for "now" dpcd-max-link-rate and enable-dpcd-max-link-rate-fix within your iGPU properties it wont work. Long story short. It works flawless now. Ive attached a copy of my latest Clover with all the properties added.

    Files

    • CLOVER.zip

      (4.79 MB, downloaded 9 times, last: )

    - Dell Inspiron 7559, i7 6700HQ, 16GB 1600RAM, UHD530 / GTX960m, WD 250m.2 Storage / Adata 480SSD 3840x2160 Touch, 10.14.3 / Windows 10 Pro, CloverUEFI

    - Gigabyte Z390 Auros Elite, Intel i7 9700K, Gigabyte Auros RX580 8GB, 16GB 2666Mhz Ram, Corsair NVMe MP500 250GB Storage, 10.14.4 /, CloverUEFI

    - Dell Inspiron 7370, i7 8550u, 16GB 2400Ram, Intel UHD620, Samsung PM961 NVMe 512GB, 13,3" 1920x1080 Touch, CloverUEFI, 10.14.3