Timeline for Displayport KVM switch not passing signal if Adaptive HDMI to Displayport Cable/Adapter and Displayport to DVI cable used
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
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| Mar 19, 2023 at 15:16 | comment | added | yesno | KVM reads EDID and knows 2 DVI monitors are attached. The KVM firmware is programmed to know that some graphics cards support dual mode (DP++) and send HDMI signal through the DP++ port when HDMI monitors are detected. Hence, DP++ -> KVM -> DVI works because KVM passes through incoming HDMI signal to DVI monitor. Exotic case involving a DP->DVI converter is apparently not considered by Depzol KVM. So it probably just blocks the incoming DP signal when a DVI/HDMI monitor is attached as it has no means of knowing that there is a a DP->DVI active converter between it and the DVI monitor. | |
| Apr 13, 2021 at 7:07 | comment | added | Tom Yan | Either way it's still just all theory from me, so don't have too much expectation that it could actually work with such double conversion chain. | |
| Apr 13, 2021 at 7:05 | comment | added | Tom Yan | I don't think so. It's just that because of the kvm in between / the source not being DP from the start, I wonder if you need an adapter that takes dedicated external power from a USB port or whatever. | |
| Apr 12, 2021 at 20:20 | comment | added | edezzie | So I bought an active DP>DVI adapter and its still not working. The adapter is DP male to DVI female. And I then have a standard DVI male to male cable connection between the adapter and monitor. Do I need a specific DVI cable here? | |
| Apr 8, 2021 at 13:27 | comment | added | edezzie | DP > DVI Cable is below. It looks to be passive alright: amazon.co.uk/gp/product/B07FZLGN6S/… Thanks for help. I will buy an active DP>DVI adapter and see if it works and post back | |
| Apr 8, 2021 at 4:59 | history | edited | Tom Yan | CC BY-SA 4.0 |
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| Apr 8, 2021 at 4:54 | history | edited | Tom Yan | CC BY-SA 4.0 |
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| Apr 8, 2021 at 4:46 | history | edited | Tom Yan | CC BY-SA 4.0 |
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| Apr 8, 2021 at 4:41 | history | edited | Tom Yan | CC BY-SA 4.0 |
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| Apr 8, 2021 at 4:35 | history | edited | Tom Yan | CC BY-SA 4.0 |
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| Apr 8, 2021 at 4:29 | history | answered | Tom Yan | CC BY-SA 4.0 |