So what should we do?
At present, I have the following solutions:
1. Buy a monitor that is exactly the same as the main screen refresh-this is feasible, but it is estimated that no one wants to do it. ...
2. Find a way to make the secondary screen not run the graphics card to accelerate the content.
I'll tell you how this 2 is done. First of all, NVIDIA canceled the multi-screen performance optimization option in the driver panel, so we have to download third-party tools here:
This option will turn off OpenGL acceleration for the secondary screen.
OpenGL is actually of little use, and the main problem lies in Direct3D. This thing can't turn off the monitor alone, because AERO depends on D3D. After closing, the window cannot be displayed. So we had to turn off the GPU acceleration of the browser. Chrome can't be turned off for the time being. We can only install a Firefox as a dedicated browser for the secondary screen, and then turn off the hardware acceleration in the options:
Then open any live video page. Then refresh Chrome's flying UFO:
Well, there is still a bit of frame loss, but at least the refresh is correct. Frame dropping is the result of CPU rendering, which is generally acceptable.
The following are the settings for real-time OBS users:
Turning off preview can solve the problem of locking low refresh.
Another strange question:
Using Chrome on the secondary screen, watching YouTube videos will not affect the number of frames on the primary screen:
I can't understand why for the time being. It may be related to the decoder rendering process of VP9. Domestic websites are all h264. Another related problem is that Windows does not support multiple refresh rates on the desktop, so the refresh rate and the number of frames will be determined according to the highest display. That is to say, in the window mode, the 60Hz sub-screen will display the frame number of 144fps, because 144 is not divisible by 60, so there will be frame skipping, that is.
One way to solve this problem is to set the high refresh screen to an integer multiple of 60, that is, 120/ 180/240Hz.
Of course, this may not be very important relative to 144. At least I personally decided to put up with it until Windows supports multiple refresh rates. After all, it is more important to ensure that the home screen is 144Hz.
In addition, the 60hz display can be overclocked to 72Hz. Basically, most 60hz monitors can overclock this frequency.
My secondary screen is 4k60hz DP 1.2, and the highest frequency can only be overclocked to 66Hz on 4k, which I can't do.