I have the “1.4 Display Port KVM Switch - Single Monitor - Four Computer” (SQ8002072). I’m running Fedora Linux or NetBSD on the source systems. I’m using a curved Monoprice monitor (product 38035 since links aren’t allowed in posts).
The computer plugged into PC1 works without issue. If I switch to another input, say PC2, and boot my NetBSD system, the monitor sees a signal and I can interact with the system. If I switch back to PC1, which has always worked (so far), then switch back to PC2, the monitor doesn’t seem to be able to detect a source. If I reboot the machine, then the monitor detects a source again and everything seems fine.
I’m getting green and red indicators for each system I have connected. Hotkeys work. PC1 works.
I’ve tried swapping cables around between PCs and ports; the cables certainly seem to work, but I’m really getting frustrated.
I’ve looked for other folks having similar issues. I found this thread (I
'd link to it, but, well, no links in posts) which seemed similar, but there’s no resolution.
I’d welcome any suggestions or help troubleshooting this.
This is my second KVM; neither have worked as expected and if I can't get either to work reliably, I'm just going to give up on trying to use them. They're not cheap and it feels like I'm playing an expensive lottery at this point.