I have two monitors running in extend mode with Windows 10. GTX 1080, Z68 mobo, 2500K. I've discovered that if there is an active window like a remote desktop window on the second monitor that the primary monitor will periodically drop frame rate. Maybe both drop frame rate at the same time. It's especially annoying in windowed games but even just smooth scrolling in a web browser gets choppy.
-One monitor 3840x2160, other 2560x1440.
-Both monitors are running 60 Hz. I also tried mixing 59 Hz and 60 Hz.
-I set both monitors to the same display settings (RGB, 8-bit, full range, 32-bit color depth). Tried altering this too.
-Main monitor is HDMI. Second monitor is DP, but I also tried DVI with it. GTX 1080 only has one HDMI.
I've read all sorts of manic forum threads about this. Pages upon pages of angry gamer dudes ready to burn Nvidia, MS, etc to the ground with wild speculation and mob mentality stuff. Apparently this problem goes back to Vista (related to wondrous 3D DWM). There's mad rage about >120 Hz monitors in this situation too. I think the problem is worse there though.
It seems to me like some kind of synchronization issue between refresh rates and DWM vsync? I was going to try using my Intel HD 3000 IGP to host the second monitor, but it doesn't support 2560x1440 at all. And the old GeForce 8600 GT that I have won't coexist with the GeForce 1080. Drivers aren't compatible.
Supposedly AMD GPUs are free of this behavior?
Anyone have experience with this issue?
-One monitor 3840x2160, other 2560x1440.
-Both monitors are running 60 Hz. I also tried mixing 59 Hz and 60 Hz.
-I set both monitors to the same display settings (RGB, 8-bit, full range, 32-bit color depth). Tried altering this too.
-Main monitor is HDMI. Second monitor is DP, but I also tried DVI with it. GTX 1080 only has one HDMI.
I've read all sorts of manic forum threads about this. Pages upon pages of angry gamer dudes ready to burn Nvidia, MS, etc to the ground with wild speculation and mob mentality stuff. Apparently this problem goes back to Vista (related to wondrous 3D DWM). There's mad rage about >120 Hz monitors in this situation too. I think the problem is worse there though.
It seems to me like some kind of synchronization issue between refresh rates and DWM vsync? I was going to try using my Intel HD 3000 IGP to host the second monitor, but it doesn't support 2560x1440 at all. And the old GeForce 8600 GT that I have won't coexist with the GeForce 1080. Drivers aren't compatible.
Supposedly AMD GPUs are free of this behavior?
Anyone have experience with this issue?