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LG Gram 14 (14Z90N) hackintosh

<details> <summary><strong>Specs</strong></summary> </br>

Model	14Z90N-V.AR5DK
CPU	Intel Core i5-1035G4
GPU	Intel Iris Plus Graphics
RAM	M471A1G44AB0-CWE * 2
SSD	~~HFS256GD9TNG-L2A0A~~ (Disabled) <br> MTFDHBA512TDV-1AZ1AABYY
LCD	LP140WFA-SPY1
WLAN	AX201D2W
Audio	Conexant CX8200
BIOS	C2ZE0200 X64 (20200812)

</details>

Reported Issues

CPU could be overheated.
Unless lid is closed, RTC/Maintenance triggers FullWake instead of DarkWake.
USB-C (DP Alt) has no sound.
HDMI output is unsupported.
Thunderbolt: "No drivers are loaded."
Power button does not work.
Internal speaker cannot play power chime.

<details> <summary>"Timeout powering ON the panel" (a few seconds delay when internal display turned on)</summary>

2022-03-20 13:06:24.032687+0900 0x5fe Default 0x0 0 0 kernel: (AppleIntelICLLPGraphicsFramebuffer) [IGFB][ERROR][AUX ] WR address = 0x004e0, data size = 2, cmd = 0x8004e001, ddi = 0 AUX received a NACK. Reply: 0x10

2022-03-20 13:06:24.032924+0900 0x5fe Default 0x0 0 0 kernel: (AppleIntelICLLPGraphicsFramebuffer) [IGFB][ERROR][AUX ] WR address = 0x004e0, data size = 2, cmd = 0x8004e001, ddi = 0 AUX received a NACK. Reply: 0x10

2022-03-20 13:06:24.033157+0900 0x5fe Default 0x0 0 0 kernel: (AppleIntelICLLPGraphicsFramebuffer) [IGFB][ERROR][AUX ] WR address = 0x004e0, data size = 2, cmd = 0x8004e001, ddi = 0 AUX received a NACK. Reply: 0x10

2022-03-20 13:06:24.033391+0900 0x5fe Default 0x0 0 0 kernel: (AppleIntelICLLPGraphicsFramebuffer) [IGFB][ERROR][AUX ] WR address = 0x004e0, data size = 2, cmd = 0x8004e001, ddi = 0 AUX received a NACK. Reply: 0x10

2022-03-20 13:06:24.033627+0900 0x5fe Default 0x0 0 0 kernel: (AppleIntelICLLPGraphicsFramebuffer) [IGFB][ERROR][AUX ] WR address = 0x004e0, data size = 2, cmd = 0x8004e001, ddi = 0 AUX received a NACK. Reply: 0x10

2022-03-20 13:06:24.033863+0900 0x5fe Default 0x0 0 0 kernel: (AppleIntelICLLPGraphicsFramebuffer) [IGFB][ERROR][AUX ] WR address = 0x004e0, data size = 2, cmd = 0x8004e001, ddi = 0 AUX received a NACK. Reply: 0x10

2022-03-20 13:06:24.034097+0900 0x5fe Default 0x0 0 0 kernel: (AppleIntelICLLPGraphicsFramebuffer) [IGFB][ERROR][AUX ] WR address = 0x004e0, data size = 2, cmd = 0x8004e001, ddi = 0 AUX received a NACK. Reply: 0x10

2022-03-20 13:06:24.034099+0900 0x5fe Default 0x0 0 0 kernel: (AppleIntelICLLPGraphicsFramebuffer) [IGFB][ERROR][AUX ] writeAUX for address 0x4e0 failed with error 0xe00002f0

... (repeated many times)

2022-03-20 13:06:26.126927+0900 0x5fe Default 0x0 0 0 kernel: (AppleIntelICLLPGraphicsFramebuffer) [IGFB][ERROR][PANEL ] Timeout powering ON the panel

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