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wake from sleeping, screen freezing on catalina 10.15.4

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i have problem after upgrade catalina to 10.15.4, everything work well, but after sleeping a few seconds and waking up the screen by pressing enter, the screen freezes, but the mouse works fine, and I have to press the power button to make it normal again.

if using catalina 10.15.3 all working fine

any ideas how to fix this?

hardware :

laptop dell vostro 5459 

Intel® Core™ i5-6500U | 8 GB DDR3 | Intel HD 520


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hi maldon,

thank you very much, it worked
I try to close the laptop display until the fan turns off (sleep mode), and open the laptop display, taaadaaaa... everything works normally and doesn't freeze 🤩

I am very very grateful to you 🙏

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  • Administrators
1 hour ago, Chính Phạm said:

Hello Admin. i'm using vostro 5459 core i7 6500U install 10.15.4. can u share EFI + Patch for me? Please help me!

i need dump for check ur files


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