Thunderbolt 4 setup won't support a second monitor?

[enViable]

Hi there,

currently working on my thesis and wanted to get a vertical monitor for better PDF reading. So I went ahead and tested one of my girlfriend's monitors and found out that my setup won't even run a second monitor. This is my setup:

PC:

• Gigabyte Z590I Vision D (comes with Thunderbolt 4)
• Intel i5-11600k
• RTX 2080 Super FE

Razer Thunderbolt 4 Dock connected to:

• via USB-C to DP: AOC G2590PX, 1080p and 144Hz
• via USB-A: Wireless Mouse
• via USB-A: Keyboard
• via Ethernet: LAN
• via USB-C: Audio interface

 

This leaves me with one USB-C port left to produce another video signal. I have a Dell U2515H, 1440p and 60Hz, that I would like to also connect to this TB4 dock but unfortunately I'm not getting a signal. Any idea why or ideas of troubleshooting? I'm posting here because Razer support is garbage and subreddits are pretty dead. Thanks!

[jaslion]

You doing thunderbolt in from the gpu to the board?

 

Either way desktop and laptop thunderbolt are ENTIRELY DIFFERENT for displays and you're lucky it even carries a display signsl

[seanondemand]

AFAIK when you pass through a video output from the gpu to the board, it’s just one video output - what you’re doing is trying to split a single displayport output, it’s just not something that works. As previous poster noted, that’s a limitation of desktop thunderbolt and the way you pass through a single output from the gpu. So, your only option is to plug into the gpu directly for any more displays.