My GPU is an RTX 3090 FE. When I use my PC monitor (LG 38WN95C) and my LG CX OLED and I turn off both displays, I cannot regain my video signal to either display when I turn either one of them back on. This does not happen when Deep Color/Game Response are disabled on the LG CX. It happens 100% of the time when these settings are enabled (meaning when [email protected] 10 bit + Gsync is in use). The only solution is to restart the PC. I suspect it is a problem with the GPU/driver. Things I've tried:
Disable QuickStart+ on the LG CX
Different HDMI port on the LG CX
Disable all power saving settings on LG CX and PC
Enable all power saving settings on LG CX and PC
Turn off PCI-E link state power management in Windows 10
Unplug HDMI from the GPU
Unplug DP cable from the GPU
Unplug power cables from the displays
Hammering Windows Key + P
Updating to 03.11.26 firmware on the LG CX
None of this resolved the issue.
EDIT: I resolved this issue by doing a clean Windows 10 install. I believe the issue lies with DisplayCal and how Windows 10 handles ICC profiles. I have no issues since and stopped using DisplayCal.
Disable QuickStart+ on the LG CX
Different HDMI port on the LG CX
Disable all power saving settings on LG CX and PC
Enable all power saving settings on LG CX and PC
Turn off PCI-E link state power management in Windows 10
Unplug HDMI from the GPU
Unplug DP cable from the GPU
Unplug power cables from the displays
Hammering Windows Key + P
Updating to 03.11.26 firmware on the LG CX
None of this resolved the issue.
EDIT: I resolved this issue by doing a clean Windows 10 install. I believe the issue lies with DisplayCal and how Windows 10 handles ICC profiles. I have no issues since and stopped using DisplayCal.
