I have a solution that worked for me earlier. Spoke with one of the calmest intelligent guys from Dell Tech called Robert and this is what we did: First, you would need to download the VBIOS and NVidia driver. They can be found here , under the video category. Please note that this link is for the Alienware m15 R6 product line. The VBIOS is the same for all M15 R6, you may, however, need to find a specific driver for the graphics card. This can be done by toggling "Show only drivers for this PC" and entering your service tag if prompted. Please note this is only applicable if you have BIOS version 1.4.3 or above for AW m15 R6 or 1.4.2 for Dell G15 5511 and for systems with an NVidia RTX 3060/3070/3080 card.Drivers for Dell G15 5511 can be found here and the process is exactly the same.  This should resolve the issue at hand.Credit to Robert PTechnical Support Engineer 1, Consumer Support Services
Hello, I just purchased an Alienware m15 R6 with the RTX 3060. The laptop has a Thunderbolt 4 port on the backside which I have plugged into my USB-C dock (purchased by my company, a HP USB-C Dock G5). Everything else connected to the dock works (USB keyboard/mouse, webcam), but my external monitors (27" Samsung Odyssey G5) will not detect on the laptop. The monitors are connected to the dock through DisplayPort cables, but I also tried using the HDMI port on the dock with one of the monitors and that didn't work either. My old laptop, a Dell Precision 3510 (about 5 years old) worked well with this same dock.  Thanks in advance for helping me out!
m15 R6, no connect to external monitors through dock