Display Port 1.4 KVM Switch - Single Monitor SQ8535421

I have the Display Port 1.4 KVM Switch - Single Monitor SQ8535421

The monitor i hooked up was a Samsung G9, i’m getting weird flickering/jittering where the image seems to bounce a little left/right then it straightens out.

The computers hooked to it:

  • Windows 10 Unraid VM (PCIe passthrough 1080ti)
  • Macbook Pro 16 2016

The problem happens on both but more pronounced on the macbook (i disable automatic video card switching didn’t fix though).

Would love any help anyone could provide.

Video (you can skip the first 30 seconds):

I think the 10xx Series had a DP firmware update,(NVIDIA Graphics Firmware Update Tool for DisplayPort 1.3 and 1.4 Displays) I would also check your cables DP does not always play nice.

Might need a repeater to fix this as mac does not do DP correctly on older ones I believe.

I bumped your TL you should be able to now (let me know if you cant)

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Thanks for the reply! I edited the main post with the video link, much appreciated.

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  • The macbook appears to be caused by the hub I had it running through, fixed it by using a usb-c to mini-displayport adapter then miniDP to DP cable running into the KVM and everything is working excellent I am looking for a replacement hub now.
  • The windows VM running on unraid seems to be fixed by the firmware upgrade you linked…

Thanks!

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