Kernel panic ok KBL Graphic drivers after trying to boot after upgrade to catalina

[kadhem]

I just updated to Catalina from Mojave and after upgrading clover as well as the kexts I was not able to boot again into my system.
I am running on a Dell latitude 7480 with 7thGen i7 and 620UHD Graphics

The error is a kernel panic in the Kabylake graphic driver and no matter what I did, I couldn't get over it. I tried -disablegfxfirmware and - igfxvesa boot arguments to no success. I tried adding a fake platformID (0x12345678) but still errored anyways (not a KP but boot stuck too).

I linked the clover folder I am using right now and a screenshot of the KP.

 

[Feartech]

I just updated to Catalina from Mojave and after upgrading clover as well as the kexts I was not able to boot again into my system.
I am running on a Dell latitude 7480 with 7thGen i7 and 620UHD Graphics

The error is a kernel panic in the Kabylake graphic driver and no matter what I did, I couldn't get over it. I tried -disablegfxfirmware and - igfxvesa boot arguments to no success. I tried adding a fake platformID (0x12345678) but still errored anyways (not a KP but boot stuck too).

I linked the clover folder I am using right now and a screenshot of the KP.

what happens with using an un edited config.plist from the laptop guide:

[Guide] Booting the OS X installer on LAPTOPS with Clover

Overview One of the first challenges you'll face in installing OS X to your laptop will involve getting the OS X installer to boot from USB. This guide is for those wishing to use Clover (and in fact the only bootloader supported here). Both installing using Clover UEFI and Clover legacy are...

www.tonymacx86.com

 

[kadhem]

what happens with using an un edited config.plist from the laptop guide:

[Guide] Booting the OS X installer on LAPTOPS with Clover

Overview One of the first challenges you'll face in installing OS X to your laptop will involve getting the OS X installer to boot from USB. This guide is for those wishing to use Clover (and in fact the only bootloader supported here). Both installing using Clover UEFI and Clover legacy are...

www.tonymacx86.com

i don't get that, is it about the DVMT-prealloc part? I don't think I have a problem with it since I was using the same Config.plist file from my clover when I was running Mojave. unless there was an instant need for more size when it comes to upgrading to Catalina.
And I didn't find where to change that variable in my bios anyways and I don't know what is it set to by default.

 

[kadhem]

what happens with using an un edited config.plist from the laptop guide:

[Guide] Booting the OS X installer on LAPTOPS with Clover

Overview One of the first challenges you'll face in installing OS X to your laptop will involve getting the OS X installer to boot from USB. This guide is for those wishing to use Clover (and in fact the only bootloader supported here). Both installing using Clover UEFI and Clover legacy are...

www.tonymacx86.com

I have gone and tried the unedited version of the config from rehabman's list, by replacing my original config.plist with that one but it didn't work and I got stuck somewhere else when booting.
I used the config.lplist for the HD620 graphics. I attached a photo of where it got stuck

 

[Feartech]

I have gone and tried the unedited version of the config from rehabman's list, by replacing my original config.plist with that one but it didn't work and I got stuck somewhere else when booting.
I used the config.lplist for the HD620 graphics. I attached a photo of where it got stuck

search for APFS 1689

 

[kadhem]

search for APFS 1689

I did fix that by adding the SSDT-EC file, but i ended up in the same KBLGraphics KP as before.

 

[Feartech]

I did fix that by adding the SSDT-EC file, but i ended up in the same KBLGraphics KP as before.

please read the faq for proper hardware profile setup:

[FAQ] READ FIRST! Laptop Frequent Questions

Before asking a question, many common questions are already commonly asked and answered, and many answers exist in the sticky threads in this forum. Read this post before and any relevant guide before asking a question... If you ask a question that is answered by this FAQ, you'll likely be...

www.tonymacx86.com

also read up on DVMT

 

[kadhem]

please read the faq for proper hardware profile setup:

[FAQ] READ FIRST! Laptop Frequent Questions

Before asking a question, many common questions are already commonly asked and answered, and many answers exist in the sticky threads in this forum. Read this post before and any relevant guide before asking a question... If you ask a question that is answered by this FAQ, you'll likely be...

www.tonymacx86.com

also read up on DVMT

Does Catalina 10.15.5 need more DVMT-prealloc than Mojave does? I didn't see that upgrading to Catalina needs resetting that, or would it be the kext upgrade that inserted issue?

 

[Feartech]

Does Catalina 10.15.5 need more DVMT-prealloc than Mojave does? I didn't see that upgrading to Catalina needs resetting that, or would it be the kext upgrade that inserted issue?

64 or 128 should be fine

 

[kadhem]

64 or 128 should be fine

My bios don't have where I can set the DVMT value so will changing it on the config.plist suffice to increase it? because I can see that it needs to align with the bios assigned Value ( so that we don't trick the system into having more memory than what he actually does ), So do I assume the system set it to 64MB and change it accordingly in the config.plist file?