On laptop lid close/reopen drivers loose color settings and extra EDID custom screens

[hexaae]

I have a laptop ASUS ROG Scar GL703GS (details in signature) and I've found that closing/reopening the lid (= Sleep and resume) causes the NVidia driver to loose all custom color settings and extra EDID custom screens I created with CRU (Custom Resolution Utility).
To restore colors and EDID customized settings I can run CRU's 'restart64.exe' and everything goes back to normal.

I already tried with DDU to clean up and reinstall drivers from safe mode but didn't solve the issue, which seems to me a Windows 10 or NVidia driver issue, or maybe a BIOS/ASUS issue.
If I manually enter Sleep mode (no lid closing or I close the lid after) and resume there is no issue.
I also tried to assign Hibernation to lid closing action instead of Sleep, but there was the same issue.

Win 10 21H1 (19043.1055)
NVidia driver 466.77
Gaming Laptop ASUS GL703GS (BIOS 310)32GB (dual channel) DDR4 2666MHz
CPU i7-8750H (iGPU unavailable)
GTX 1070 8GB (Max-P, 10DE 1BE1 - 1043 1011, GP104 A1, vbios 86.04.7c.00.24, Samsung VRAM)
Screen: 144Hz g-sync AUO B173HAN03.2 [AUO329D] 1080p (1920x1080)
2nd Screen through DisplayPort: 144Hz adaptive-sync Mi UWQHD [XMI3444] 3440x1440
Audio: Realtek HD Audio (ALC295 chipset)
Hard disks: NVMe Samsung, SSD Crucial
USB Blu-Ray 4K drive: Archgon Star MD-8102P-U3YC-UHDB (Pioneer BDR-UD04)

[hexaae]

It seems after closing/reopening the lid, internal laptop monitor changes to a different HW ID. The clue is in some ghost and inactive devices that pops-up from nowhere!!!



DISPLAY\AUO329D\5&1217B8D&4&UID0 not present after EDID reset, before I close/reopen the lid
DISPLAY\AUO329D\5&1217B8D&4&UID4352 this is how is always displayed once fully resumed

WORKAROUND
My current workaround has been to re-create NVidia custom monitor resolutions + color settings for BOTH screens* (!?), this grants not to loose my customizations when closing the lid to put laptop in Sleep/Hibernation.

*i.e. make my customizations, close and reopen the lid and re-create the same settings also on this "new" screen

[hexaae]

Useful links (didn't help me solve the issue but they could still be useful):

https://community.spiceworks.com/top...ctual-monitors
https://endurtech.com/second-monitor...s-after-sleep/