I wonder if FW12 will manage high resolution, high refresh rate screen. Specifically 4K 120Hz. I’d like to connect the laptop to Dell U2725QE, which support DisplayPort over USB-C.
To FW12 users: do you have any experience in that matter? Has someone did that successfully?
According to this KB article by FW all expansion card slots on the FW12 support DP 1.4 HBR3 over USB-C. According to a video bandwidth calculator, that’ll require about twice the bandwidth of what’s available so I don’t think you’ll have any luck running that 120Hz 4K screen. Definitely so if it’s 10 bit.
Edit: I might be wrong. The KB-provided spec sheet says it supports DP1.4, which means it might work. You just have to test it to be sure.
This article also says that all of the ports supports DP 1.4 HBR3. When I asked an LLM for that, it clearly said that the port would easily support 4K 120Hz. But it also said that the graphics card could be limitation.
That’s why I asked actual owners for their personal experience.
Edit: sorry for not reading your edit. But now that’s clear that we need real-life proof to figure it out. Youtube’s Lifting Linux tested successfuly high refresh rate, but only for 1440p.
Okay, it seems the bandwidth calculator site’s UI is just really confusing. FW12’s USB-C ports should support DP 1.4 video out, meaning 4K 120Hz should be achievable if you’re only at 8-bit color depth w/o HDR. It’s just under the bandwidth limit (25.82 Gpbs used / 25.92 Gbps max), but it should work!
Regarding GPU performance concerns, if you’re going to be using it for productivity tasks it’s more than likely it’s going to serve you very well. FW12 is not a gaming or workstation machine.
Thanks for your help!
Has anyone had real-life experience yet?
