What type of camera? Just a hunch, but check if ROI is enabled on the camera. I've seen where "X" stream is cropped to a Region Of Interest on some cameras...I think it was Speco.
I saw something similar once before where I had a VMS UI open for weeks. It was running fine and then one day I noticed the camera images were corrupted in a way similar to what you described - they were "split", but they weren't rolling, so may not be the same thing. In this case however, I do not believe it had anything to do with the cameras, and I put it down to a video card driver bug on the client machine. I restarted the computer running the UI and the problem went away.
The bottom half of the VMS image is often displaying on 1/4 of the top of the view.
Does that mean that it is displaying with an extra-wide aspect ratio, or??
Undisclosed 1: Thanks for the suggestion, it doesn't have to do with the ROI on this cam....
Undisclosed 2: Thanks for the suggestion. Re-starting the computer did work a couple of weeks ago. at one location. As for the others, we have tried re-starting and that hasn't worked. The rolling problem is only on the 3MP PTZ.
Undisclosed 3: Thanks, but no, they are not displaying with an extra-wide aspect ratio.
I really appreciate your responses!
Pro Focus LLC | 07/13/16 12:30am
How many viewing stations have the VMS client installed?
Do they all exhibit this flaw?
Are they all similar hardware, same graphics card, driver, client version, Windows version, etc?
Is this flaw also found in the web interface of the camera?
Have you looked into newer firmware for the cameras?
What brand/model of cameras and VMS is in use?
Thanks all so much for your input. All great questions. Long story short, we were able to pinpoint all 3 of our problems to the software.
We also have an ongoing fourth problem at a different location with multiple 360's. For months they weren't able to work properly at even 7FPS on a robust NVR, plenty of bandwidth and ideal setup.
It turns out today, after trying a different free downloadable VMS, everything is now working well! The free VMS was just to test, but at least we know for sure now. Worrysome, and aggravating, but at least the problems are at bay for now.