I am having the EXACT same issue, I had none of these issues with the first doc (which I sold). The frequency of both monitors are set to 60 hz. I actually have 2x 24 inch Dell with two different resolutions, because one is actually a touchscreen so I also tried to lower the resolution to match the touchscreen, but that also did not help.Ĥ. I first tried it with usb-c to DisplayPort, and I'm now using usb-c to HDMI, but still out of luck.ģ. Clearing cache made me reset the settings over and over again, but did not resolve the issue.Ģ. If I plug the first one back into the dock, the first one gets preference and the second one will stop working again.ġ. The strange thing is that when I disconnect the first one, the second starts working. Also tried everything that I could find on the subject. I have the exact same issue connecting my two Dell monitors to the Surface Dock 2. I then manually updated the firmware on one of the surface pro 7 devices.
Windows update showed no updates available. I then connected the LG to the other surface pro 7 device through the surface dock 2. Using the "detect monitor" feature came back with "no monitor detected". Never showed up in windows, although you would get the sound like a monitor was recognized and the displayport message. A messages was displayed to the effect that the monitor should be connected through a displayport. To be clear, I first connected the surface dock 2 to one of the surface pro 7 devices and connected the Dell to the surface dock 2 through the usb-c. The other two are connected using the dock’s DisplayPort ports. One of the monitors is connected via the dock’s HDMI port. The LG monitor previously worked connecting to a macbook pro through the usb-c port. Equipment- Laptop: Macbook Pro 16' 2019 OS: Big Sur (11.6) Dock: Plugable UD-ULTC4K Monitors: Asus VG27AQ (3 of these) Setup Description- I’m connecting from the laptop to the dock using the provided USB-C cable. Neither of the monitors would connect through the usb-c ports. I purchased two new surface dock2 to connect our surface pro 7 to our widescreen monitors using usb-c cables.