XPS 9360 Graphic : HD620 + QHD Screen without patching the BIOS

[oli.mathieu]

Hello
I've got XPS 9360 with I7 7500U with HD620 and a QHD+ Screen (3200x1800)
The BIOS (ver 2.2.1) GUI information shows an DVMT of 64 MB (not editable)
I run MacOS 10.12.6.

I would like not patching the BIOS but the frameBuffer instead (via clover) to increase (up to 128Mb?) the DVMT-prealloc.
Has-it ever done ?

What I did :
- platform id : 0x59160000
- FakeID IntelGFX : 0x59168086

Result :
I see in the verbose during the boot the iGPU driver is loaded, but unfortunately the screen resolution is shrunk to the lowest quarter of the screen.
But with screen sharing, I have access to OSX ➧ I saved the .ioreg

What I did :
- platform id : 0x123456789
- FakeID IntelGFX : 0x59168086

Result :
I see in the verbose during the boot the iGPU driver is not loaded, Osx starts with no graphic acceleration.

Questions :
Is there any frame buffer Guide for Kabylake-GPU and QHD screen?
Is there any specific .kext I should use this 10.12.6 ?


Thanks for any help

 

[RehabMan]

I would like not patching the BIOS but the frameBuffer instead (via clover) to increase (up to 128Mb?) the DVMT-prealloc.
Has-it ever done ?

You cannot increase DVMT-prealloc by changing the software.
Must be done in BIOS.

What I did :
- platform id : 0x59160000
- FakeID IntelGFX : 0x59168086

Result :
I see in the verbose during the boot the iGPU driver is loaded, but unfortunately the screen resolution is shrunk to the lowest quarter of the screen.
But with screen sharing, I have access to OSX ➧ I saved the .ioreg

What I did :
- platform id : 0x123456789
- FakeID IntelGFX : 0x59168086

Result :
I see in the verbose during the boot the iGPU driver is not loaded, Osx starts with no graphic acceleration.

Questions :
Is there any frame buffer Guide for Kabylake-GPU and QHD screen?
Is there any specific .kext I should use this 10.12.6 ?


Thanks for any help

Keep in mind you need to patch for the pixel clock limitation.
Read FAQ.

And...
Read FAQ, "Problem Reporting"
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/

 

[oli.mathieu]

You cannot increase DVMT-prealloc by changing the software.
Must be done in BIOS.

what about your guide ? There is something I didn't catch I need to read more about it.

here are my files
Thanks
P.S. I still use screen sharing to work on the laptop

 

[RehabMan]

what about your guide ?

That doesn't change DVMT-prealloc.
It patches the framebuffer to match 32mb DVMT-prealloc.

"Problem Reporting" files are incomplete.

 

[fivos1996]

Hello
I've got XPS 9360 with I7 7500U with HD620 and a QHD+ Screen (3200x1800)
The BIOS (ver 2.2.1) GUI information shows an DVMT of 64 MB (not editable)
I run MacOS 10.12.6.

I would like not patching the BIOS but the frameBuffer instead (via clover) to increase (up to 128Mb?) the DVMT-prealloc.
Has-it ever done ?

What I did :
- platform id : 0x59160000
- FakeID IntelGFX : 0x59168086

Result :
I see in the verbose during the boot the iGPU driver is loaded, but unfortunately the screen resolution is shrunk to the lowest quarter of the screen.
But with screen sharing, I have access to OSX ➧ I saved the .ioreg

What I did :
- platform id : 0x123456789
- FakeID IntelGFX : 0x59168086

Result :
I see in the verbose during the boot the iGPU driver is not loaded, Osx starts with no graphic acceleration.

Questions :
Is there any frame buffer Guide for Kabylake-GPU and QHD screen?
Is there any specific .kext I should use this 10.12.6 ?


Thanks for any help

For 4K resolution you have to patch the pixel clock limit. You can change the DVMT pre-alloc using EFI shell.

 

[oli.mathieu]

That doesn't change DVMT-prealloc.
It patches the framebuffer to match 32mb DVMT-prealloc.

Okay I understand, now. thank you to make it clear.

here are the Problem Reporting Files
Thanks

 

[oli.mathieu]

For 4K resolution you have to patch the pixel clock limit.

I've done it, it's a script from dark void isn't it ?

You can change the DVMT pre-alloc using EFI shell

It's hard to find some clear info about that ! I thinks i's a better to try that before patching the Bios
I keep looking for
Thanks for your Help

 

[RehabMan]

Okay I understand, now. thank you to make it clear.

here are the Problem Reporting Files
Thanks

Your ioreg shows internal display detected, EDID looks valid/etc.
You should try other ig-platform-id values.
Make sure you did the pixel clock patch correctly.
Backlight control is not implemented correctly (AppleBacklight patch is disabled).

Note: CPU PM is not implemented.

 

[oli.mathieu]

You should try other ig-platform-id values.

Okay, i'll try
Thanks for your help