My comet pro kvm has an issue where it is intermittently blacking out the display that is plugged into it. I ordered it through the kickstarter so I am not sure if this is a problem of early hardware revision.
Troubleshooting steps taken:
-Switching cables out for others
-Switching the output ports on my pc, trying both my graphics card and mobo hdmi ports and using a DP adapter to try there as well.
-connecting display directly to the ports without the kvm. This resolved the issue so I am inclined to believe the issue is with the kvm.
Thank you for your patience. After reviewing the log files from your device, I noticed that the video change interrupt flag is being triggered very frequently. This indicates that the HDMI input signal is highly unstable — it keeps disconnecting and reconnecting. I believe this is the primary reason for the intermittent black screens you're seeing.
If you don't mind, I'd like to ask a few questions about your current setup to help us narrow this down:
1.Are both the KVM and the controlled computer using their original power adapters?
2.What is the configuration of the controlled computer? Does it use a discrete graphics card? In some cases, an underpowered PSU can cause video signal instability.
If you have access to another computer, I recommend testing the KVM with a different video source to see if the black screen issue still occurs.
Let me know your findings. We'll continue from there.
Yes they are using original power supplies. I also tried swapping between CPU and GPU outputs for the KVM as well.
System specs here:
AMD 9950x3d
Asus B650E-F gaming
64gb of Ram
MSI ventus 4070ti super
EVGA 1000w Power Supply
Avermedia internal Capture Card
Other Monitor is a Samsung 49” G9 Odyssey Which I have run as a split monitor configuration and unsplit with the same intermittent blacking out results. I have another monitor I can test out when I get home tonight in place of the Wacom monitor.
Should I try swapping out the HDMI cable that connects the KVM to the PC? I had originally thought the problem might be from the KVM to the monitor so I do not believe I have tried swapping the other cable. I am using the cable that the KVM came with for that connection.
Quick update here, I plugged in a 1440p monitor to the kvm and left it plugged in for a few hours with a similar workload to what I typically have going on. In that time I had no intermittent blackouts. Afterwards I swapped back to my Wacom as it is part of my workflow. In the time since plugging it back in I have not had a screen blackout problem. This weekend I will attempt to do a live stream as that was one of the workloads in which I noticed the issue the most due to using the screen to monitor my stream and chat and will post another update afterwards.
Since my last post I deployed the 1440 monitor fully into my setup and all was good for a few days but I am now back to having the intermittent blackouts on the KVM connected monitor. I have a new GPU coming in a few days and can see if my GPU is the issue but again going back to my first posting, this issue cannot be replicated when the KVM is removed from the workflow. “The monitors do not lose signal under any load when the KVM is excluded.
I am back with an update. Since my last post I have installed a new GPU and still have intermittent black outs on the monitor BUT I think I might have figured something out. Firstly, I am on 1.9.1 so any fixes there have not remedied this issue. Second, I noticed back in the video I posted in the replies that I had wowhead open. A couple of nights ago I was having the black outs happen while I had the Terrarira wiki open. I think that the “video change interrupt flag” is being triggered by Advertisement delivery systems and part of the reason I am looking in that direction is that closing those wiki windows seems to stop the blackouts. I plan on keeping an eye on this and have added a pihole into my network to use as a quick ad kill switch to do some more testing.