Rhino 6 black screen during startup or opening file while on secondary (4K) monitor. Fine on primary display

[jeff (Jeff LaSor)]

@jstevenson So far I haven’t been able to repeat this with my current laptop… Downloading and installing 1903 now to see if that does it.

But I have some questions for you…

1. By the following…

@jstevenson

if the Rhino Window is on the Non-Primary monitor

… Do you mean: You start Rhino, you then move it over to the non-primary monitor, you then load a file that immediately requires meshing, and Rhino locks up? If that’s not what you’re doing, then what exactly are you doing to get “Rhino to open on non-primary monitor” ?

Edit: And if you immediately repeat the steps above, but you leave the Rhino Window on the primary monitor, it doesn’t lock up? I’m starting to wonder if this is related to this:

Rhino freezes on secondary monitor (Problem with the Nihimic audio driver on the motherboard)

Hi, I have just today installed and built a new workstation desktop computer. Everything is brand new in it. Today I also installed the new rhino 6 on it, and it worked at first, the first try, but now it crashes at start-up. I have however noticed it to be connected to a hardware problem. The program only crashes on the screen that is connected via displayport. I have two displays, one hdmi and one displayport. Rhino works perfectly on my HDMI, but crashes at start-up screen on the display…

…which was solved by this:

Rhino freezes on secondary monitor (Problem with the Nihimic audio driver on the motherboard)

When you uninstalled it using the Device Manager, did you also check the box “Delete the driver software for this device.” ? If not, please do so. Otherwise, Windows will be able to recognize it again, and simply reinstall the drivers that are already on your system see pic. [image] I would also check to see if Nahimic is running as a “Service” … my bet is that it is… Start the TaskManager (right-click on TaskBar, select Task Manager)… Click on the Services tab…if you don’t see one, then ma…

The “NahimicOSD.DLL” is some 3rd party audio driver that gets attached to all processes, and does a very poor job at enumerating multiple display devices…whoever wrote it assumed that the processes in which they run would never be enumerating display devices as well, and so it doesn’t “play nice” inside Windows’ display device management API… So please check to see if you have anything like the “NahimicOSD.DLL” and/or service running on your system.

2. Are your monitors configured to “Extend” or “Duplicate” the display?

3. Is Rhino locked up and non-responsive? Or is it just that the viewports have gone dark? In other words, can you still mouse around and click on or run commands? If Rhino is indeed locked up, then I’d like you to “force a dump” of the Rhino process and send me the resulting DMP file… That should show me exactly where Rhino is spinning… See the attached PDF on how to do that if you’re not already familiar with the procedure. Note: This will also show me if the problem is related to the NahimicOSD.dll I mentioned above…and is how I was able to find that problem in the first place.

Creating a dump file for Rhino.pdf (761.0 KB)

Thanks again for your feedback and patience on this…until I can repeat this, or know where things are locking up, it’s going to be quite difficult to fix…so I really appreciate all the help.

-Jeff