Laptop's internal display not working, External monitor is working - Dell inspiron 15R SE ( 7520)

I hackintoshed my Dell laptop inpiron 15R SE (7520) with macos Monterey 12.6 from Olarilla's website.
After the installation of Monterey 12.6 , initially my system detected only 4MB of VGA of INTEL HD 4000. https://ibb.co/7WcX3Yk

Therefore i installed the application "https://github.com/chris1111/Patch-HD4000-Monterey " . before the installation i did the below settings.
1. csrutil authenticated-root disable
2. disabled gate keeper
3. enable auto login
4. Using the OC Configurator 0.8.4 csr-active-config ➤ EF0F0000 , SecureBootModel ➤ Disabled , PlatformInfo ➤ MacBookPro13,1
5. Used the boot args " -v alcid=3 watchdog=0 igfxonln=1 -no_compat_check -revsbvmm keepsyms= 1 amfi_get_out_of_my_way=1 "

After the installation of Patch-HD4000-Monterey my laptop has restarted --> After showing the verbose texts for sometime and my laptop display went to Dark gray screen with many thin horizontal lines that will be clearly seen if you look closely. But i understood that my laptop(Hackintosh) still working in background.
Therefore i connected an external Monitor. It worked and got the display working with the graphics acceleration and macOS detected the intel HD4000 1536MB. Minimize animations are working great.

It is strange that, my internal display is not working with the Monterey after the Patch-HD4000-Monterey. External monitor is working.
Please help me to fix this issue of internal laptop screen. I couldn't find any related issues on internet and forums.


Thank you so much Mr. Chris 1111 , you have given me hope of very latest macOS Monterey 12.6 for my 10 year old laptop.
For you information Please refer my EFI folder at "https://github.com/abdulahath/EFI_monterey-12.6.git"

instead of using igfxonln=1 , i used -igfxvesa . Then it booted without the acceleration and Laptop internal screen is worked and now the System is showing 4MB only.

If your laptop is 1366x768 try remove DeviceProperties
Some boot args is not need , use only -v keepsyms=1

chris1111 a écrit:If your laptop is 1366x768 try remove DeviceProperties
Some boot args is not need , use only -v keepsyms=1

Thanks for the reply. i'll try the boot args with only -v keepsyms=1 and keep you posted within some time.

anyway, how to remove the DeviceProperties?

Try only this value
https://i.servimg.com/u/f25/18/50/18/69/scree658.png

i tried with the boot args only with -v keepsyms=1 and also adjusted the device property value as per above reply. MacOS have started without the graphics acceleration , only 4MB VGA is detected.

https://ibb.co/YhwC8M9
https://ibb.co/rxb3QqT
https://ibb.co/C71cpd4

Ok same setup but try add boot args
-wegnoegpu

i tried with the boot args only with -v keepsyms=1 -wegnoegpu . Same grey screen appears and Laptop working in background.

Use your previous DeviceProperty
then use this boot args
-v keepsyms=1 -wegnoegpu