Sounds like my problem form last year with the 8950 and internal graphics, tried multiple cables, this is the one that worked for Display port to HDMI monitor [URL]
Hi, I recently bought the new dell XPS desktop (8960), and since purchasing I've had an issue with a black screen. The PC starts up with the dell logo, and then after the logo it stops sending signals to the monitor.I've had support work on me with this, it was first perceived to be a problem with the OS. An engineer came to install a fresh windows 11. When we got into the desktop, and started manually updating the drivers..it happened again. Then it was hypothesized as a graphics card problem with how it responds to the latest drivers, so they were planning on replacing the motherboard for my PC. I ended up having the whole PC replaced. Got my new PC yesterday and the exact same problem.I'm waiting for a response from support, but meanwhile I was wondering if anyone has had this happen, what the problem was, and how they fixed it?
XPS 8960, black screen