Custom Resolution Utility (CRU)

[XmaX]

(11-08-2021 04:30 PM)ToastyX Wrote:  

(11-08-2021 01:41 PM)XmaX Wrote:  Hi all,
I have a Dell XPS 9310 with Intel Xe graphics, and I'm trying to connect an external display via HDMI at 4k 60Hz. Despite Intel Graphics Command Centre reporting 4k 60Hz as a valid mode, 60Hz is not present as an option for 4k. Adding 60Hz with CRU doesn't seem to work either - and CRU itself works, because I successfully added 75Hz for 1080p.

My initial thought was of course that there's something wrong with the dock, or the HDMI cable - however, the same screen works beautifully at 4k 60Hz under Ubuntu. Is there any way to fix it? I hear that an older version of Intel Graphics Command had an option to add custom refresh rates, but I can't seem to find it.

Adding a resolution that should already exist won't solve the problem. Does the dock support HDMI 2.0? What about connecting the monitor directly to the computer?

Dock is indeed dual HDMI 2.0, and allegedly supports 2x4k@60Hz. Connecting via USB-C to HDMI cable has the same result (didn't test on Ubuntu though). I just ordered a USB-C to DP cable to see if that works.

The Ubuntu thing working flawlessly throws me off though. It'd be easy to put blame on the hub, but clearly there's something else going on. I've also managed to add a few frequencies between 30 and 50Hz (at 4k) but those don't work at all.