Custom Resolution Utility (CRU)

[chef_pooh]

(01-06-2023 03:37 AM)ToastyX Wrote:  

(01-05-2023 06:04 PM)chef_pooh Wrote:  I have recently upgraded to the Pro Art X670E, where the JHL8540 Controller lets me get full 6k60@10bit over a TB3 cable using the iGPU. However, when I connect the DisplayPort passthrough from the GPU to the Motherboard, I get a black screen. After Chrome Remote Desktoping to the computer, I see it's connected at 6k60 6bpc, which I don't think the display supports. Is there a way I can set a custom resolution to force the correct settings since it looks like Intel's TB4 controller is doing odd things? Of note, I'm unable to set a custom detailed resolution at 6k -- the text is red. I think CRU doesn't account for DSC since those resolutions are possible over DisplayPort 1.4, right?

No, that's not correct. Read the first post for detailed resolution limitations, but there's no point in adding a custom 6k resolution anyway because the monitor already defines the correct 6k resolutions. DisplayPort only drops down to 6 bpc if there's a bandwidth limitation, so something is wrong with this setup.

Yes, something is indeed funky -- I'm pretty sure the JHL8540 is negotiating the wrong protocol, which should be HBR2+DSC, to connect to the display, so I've told Asus about the bug.

For anyone in a similar boat, everything works with the Belkin Cable + CalDigit TS4 dock. You can find my solution here. Hopefully Intel pushes out changes that make this more streamlined.