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4090 TUF - Using both HDMI's not working on boot/restart

chad711
Level 7
My setup is this: LG C2 for main monitor via HDMI, LG C1 for couch gaming connected via HDMI. Then a 3rd monitor connected via DP. The sole purpose of buying this gpu is that is has two HDMI ports. Here is my problem. I have my main monitor (LG C2) connected to bottom HDMI on gpu as that has priority from my understanding. When I power up/restart if my LG C1 is turned off my LG C2 (main monitor) will not detect/turn on. I either have to turn on the LG C1 and then they both show up or I have to disconnect the LG C1 from gpu to get my LG C2 to come on.

I have updated my vbios and I'm on the current nvidia driver and using W11, up to date.

How do I fix this?
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1 REPLY 1

Jiaszzz_ROG
Customer Service Agent
Hello, chad711.

According to your description, you have connected two LG C2 displays to separate HDMI ports and a third monitor using DP.
May I ask if you have tried swapping the HDMI ports for the two LG TVs?

Could you share the following information to help us better understand the scenario of your problem?
- the main motherboard in currently build and the BIOS version
- the content of the setting in BIOS (or whether it is the default)
- the brand and model name of the CPU, DRAM, GPU, and PSU currently installed

Thank you.
Due to the ongoing regional holidays, my responses may be slightly delayed.
Thank you in advance for your patience.‌‌‌‌ 🙂