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[Solved] E6530: sometimes boots to black screen & goes to sleep


Soterlll

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The laptop almost perfectly runs Big Sur, but i experienced this annoying issue:

 

From time to time display goes dark following the apple logo on boot, and then the machine goes to sleep.

After i wake it from sleep by pressing the power button, everything works fine.

 

I used Herve's E6230 EFI folder( attached it), also used my own patched DSDT and SSDTs. Nothing helps to solve this problem.

 

Specs:

 

Dell Latitude E6530 with A22 Bios

i7-3740QM

1366x768 screen

16GB RAM

HD 4000 + NVS 5200M(disabled in SSDT-DGPU)

System: macOS Big Sur 11.7.9

Clover v5144

EFI.rar

Here my Ioreg and logs files with Patched DSDT(E6530).

ioreg.ioreg logs.rar EFI_6530.rar

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