I’ve used multi-display functionality on a project before on an old mac pro and 3 external monitors and it ran great.
I’m trying to run the same project on a Windows 10 notebook with a GTX 1060 (much better than the mac pro) and it is really slow in standalone with multi-display, even when only using the laptop screen and a single external monitor. If I connect a second monitor it gets even worse. In the profiler the problem is Device.Present taking 97.4% of the GPU usage with a single external monitor.
But if I make a game window as big as all the screens together and run the game in the editor, it runs really smooth on all three displays.
I’ve looked online, and the notebook should have no problem running 2 additional displays according to other users and the manufacturer. I’ve tried simpler things running on all 3, like playing movies, browsing, etc, and everything is smooth.
Only when using the multi-display from Unity do things get slow.
I’ve tried a lot of suggestions from the forum, like disabling VSync, and the project rendering is very simple, just a group of particles and a few cubes. It runs well on a macbook which is really old in a single monitor.
I’m also using the latest drivers for this model, although there are newer Nvidia drivers I can’t install because ASUS notebooks have an issue with it.
The notebook is an ASUS GL502VMK with the GeForce GTX 1060 6GB Ram
Anyone using multi-display having problems with it?
Trying this in a new project and creating a scene with only two cameras and the script for multi display has the same results, GPU usage is around 90% when using multi-display with a single 1080p external monitor and the laptop’s screen.
Could this be an issue with this specific GPU?
I can see reports of people playing games with the same setup and multiple monitors without issues.
Editor still runs smooth with a game window covering both monitors.
I’m experiencing the exactly same issue, I have tried different PC/Laptops, with brand new project, none of them works, as long as I use multiple monitors, the FPS drops to half, and it’s 2020 now, I’m using Unity 2020.1.11
@pzoghbi The original issue I had in this thread was related to running a Unity application on standalone, not using the editor.
I’ve been using the editor with multiple monitors and I have never had any issues, so it might be a bug to that specific version or to your hardware.
Try the same with a new project, and if you have the same issue on a blank scene then submit a bug report.