Gigabyte Z77X-UD5H & GTX 1050: black screen after sleep

I recently set up my hackintosh. Everything else works fine, the only issue is my monitor cannot come back from sleep.

Symptom:

  1. If I click the "sleep" menu manually, the system goes to sleep fine. After the system sleeps for a while (more than a few mins, I guess it's called "deep sleep"), when I try to wake it up, the monitor wakes up but stays black screen. The machine is on.
  2. If I leave the system to time out and sleep by itself, only the monitor goes off; when I try to wake it up, same symptom as above.

What I have tried (but none worked):

  1. additional boot flag: ngfxpatch=pikera
  2. additional boot flag: darkwake = 0
  3. Customize EDID

Specs:

  • Motherboard: Gigabyte Z77x-UD5H
  • BIOS: F16j
  • CPU: Ivy Bridge i5-3570K CPU @ 3.40GHz (quad core)
  • Graphics: Nvidia GTX 1050
  • Monitor: Dell P2715Q @ 4k / 60Hz, Display Port
  • Wifi / Bluetooth: BCM94360CS with PCIE
  • Onboard GPU: disabled
  • OS: High Sierra 10.13.3

Please see attached for following files:

  1. EFI zip file: https://www.dropbox.com/s/8nun37msu9b1bva/EFI.zip?dl=0 (I generated my own SSDT.aml using ssdtPRGen.sh; other SSDT patches are copied from this repository: https://github.com/VoiletDragon/Z77X-UD5H-Clover-Hotpatch-Patches)

  2. ioreg dump: https://www.dropbox.com/s/5a10k82guczaaws/macchiato.ioreg.zip?dl=0

  3. result from following command: https://www.dropbox.com/s/0b22qcw79ovnjdg/kext-touch.txt.zip?dl=0

  • kextstat|grep -y acpiplat
  • kextstat|grep -y appleintelcpu
  • kextstat|grep -y applelpc
  • kextstat|grep -y applehda
  • sudo touch /System/Library/Extensions && sudo kextcache -u /

I am looking forward to your suggestions. Thanks.

submitted by /u/ychw
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