Jump to content
  • Pinned
    Sign in to follow this  

    macOS Catalina 10.15.4 is out

    Released March 24th, 2020.


    Watch out folks as this update can be problematic on Sky Lake and later platforms. Update Lilu + WEG kexts to latest available versions and Clover to r5107 before initiating the update. If you cache your kexts from /L/E (or /S/L/E), remember to also update the kexts in the E/C/k/O of your EFI partition as the temporary update partition boots only with kexts injection. Faking a different CPUID should no longer be required but boot parameters -lilubetaall and/or -disablegfxfirmware may be so until the update has fully completed.


    I've also noticed that 10.15.4 no longer supports XCPM on my Ivy Bridge laptop (Latitude E6230) so it's back to generated CPU power management SSDT + AICPUPM patch.









    At the same time Safari 13.1 + Security Update 2020-002 were released for Mojave 10.14.6 and HIgh Sierra 10.13.6.


    :excl: Warning to all those who run Catalina on officially unsupported graphics platforms (eg: 1st gen Intel HD, Intel HD3000, nVidia Tesla), the patches/tricks previously used to gain OpenGL-only graphics acceleration no longer work in 10.15.4. As such, stick to 10.15.3 for the time being!

    Edited by Hervé

    Sign in to follow this  

    User Feedback

    Recommended Comments

    There are no comments to display.

  • 587 OSXL Poll (feedback in topic)

    1. 1. Do you like our site design ?

      • Yes
      • Yes, but still need some improvements
      • No, I hate it
      • Prefer old site template

  • Recent Posts

    • try this, replace Config file and add the SSDT* to clover patched folder 5480_Kormoran.zip
    • @Jake Lo i have a question, which one i should buy? E5470 or Dell Latitude E7450?
    • @oli121 It's 2 posts up. All you need to do is install Clover loader and then replace the Clover folder with the one above.
    • Hey @Owen Delaney can you upload the efi folder again of the E5470?   Thank you
    • Using those same drivers on my Lat 7490 and I've not experienced any trouble with Sleep/Wake since upgrading to 10.15.4. I guess this issue was indeed specific to your own build.
    • Hi all! I found the solution to my problem. Albeit being very specific to my case, I'm putting the information there in case it's useful to someone else.   So, my 'wake to black screen' issue on Catalina 10.15.4 was related to the modified version of acidanthera's BrcmPatchRAM I was using to make my DW1820A work. These problematic drivers on 10.15.4 were https://osxlatitude.com/forums/topic/12392-solved-7490-catalina-dw1820a-bluetooth-problem/   Since they are the only drivers that work correctly with DW1820A today, there is no more readily available / fully-working solution for this particular card on 10.15.4. AFAIK, this modified version of the drivers was loading a more recent FW to the DW1820A than the one still used by the official BrcmPatchRAM.   I switched to a new DW1830 card and used the latest official release of acidanthera's BrcmPatchRAM. And now everything is working mostly smoothly: sleep/wake, wifi and bt.   So, even if you don't have a DW1820A card, if you have this wake to black screen issue on 10.15.4, it may well be related to your wifi card + driver combo. Make sure to update to the latest version of acidanthera's BrcmPatchRAM.    
    • It's called a "no entry" sign...   .  
  • Create New...