kali2000 Posted February 8, 2021 Share Posted February 8, 2021 Hi my friends...!!! My laptop is a MSI with HD 4600. I have two SSD disks, one with High Sierra a other with Catalina. I boot both systems from the same EFI partition on Catalina SSD. On High Sierra all work fine, but on Catalina my HDMI don't work. I send my sendme files from the two system with HDMI connected. I can't see what is the problem. Can anyone see my files and tell me how I can fix my issue? Thanks in advance. First sed from Catalina. Send me MacBook-Pro-de-Kali-Catalina.zip Second send from High Sierra. Send me MacBook-Pro-de-Produccion-High Sierra.zip Link to comment Share on other sites More sharing options...
kali2000 Posted February 9, 2021 Author Share Posted February 9, 2021 Thanks for reply... test it and tell you... Link to comment Share on other sites More sharing options...
kali2000 Posted February 9, 2021 Author Share Posted February 9, 2021 12 hours ago, Hervé said: Could be related to the SMBIOS and/or AGDP. I would suggest you try the following: 1) switch SMBIOS to MacBookPro11,1 2) if switching SMBIOS does not fix this, add WEG boot arg agdpmod=pikera Neither option has worked. @Hervé in your guide how to patch HD 4600 posted here, in post #5, you do reference to a change in AppleGraphicsDevicePolicy kext. Is it possible that my problem lies there too? Send me MacBook-Pro-de-Kali.zip Link to comment Share on other sites More sharing options...
niknod Posted February 9, 2021 Share Posted February 9, 2021 Try using boot argument agdpmod=vit9696 Link to comment Share on other sites More sharing options...
kali2000 Posted February 9, 2021 Author Share Posted February 9, 2021 1 hour ago, niknod said: Try using boot argument agdpmod=vit9696 Thanks for reply, but my screen don't turns black after finishing booting. In fact, if you take a look at my files from High Sierra, the patch is correct and my HDMI is working. Link to comment Share on other sites More sharing options...
kali2000 Posted February 16, 2021 Author Share Posted February 16, 2021 Any more suggestions? Link to comment Share on other sites More sharing options...
Allan Posted July 11, 2021 Share Posted July 11, 2021 Hello 😃 All your kexts are updated to the last version? Also your topic was moved to the Notebook Section 😉 Link to comment Share on other sites More sharing options...
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