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


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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.




Dell Latitude E6530 with A22 Bios


1366x768 screen


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

System: macOS Big Sur 11.7.9

Clover v5144


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

ioreg.ioreg logs.rar EFI_6530.rar

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