The VideoLAN Forums

Hi,

Is there a way to set VLC to automatically adjust the framerate to the screen being used so they synch up and there is no slomo effect? This is particularly important if you run several screens and open VLC on one but have the video output on another.

If this does not yet exist, it would be definitely nice to have...or even essential?

Thanks

You can´t adjust the frame rate of a video file - unless you mean to slow playback down. And in that case, VLC cannot do that.

Oh, I see. Is it perhaps possible that the app adjusts the framerate in the screen settings then?

You want the application to change the refresh rate? That is theoretically possible but I don't know any sane hardware abstraction to do so. In any case, it would not work for VLC due to the way it handles synchronization.

On a Windows 7 (64-bit) system (8GB, Q6600, GTX770) with a 1920x1080@60Hz primary screen and a 1920x1200@41Hz secondary screen, VLC was used to watch a DVD, making it full-screen on the primary display. It was quite jittery, with the rate/pattern somewhat indicating that VLC was vsyncing with the wrong monitor, or both of them. So, when the 41Hz screen was disabled, the jitter went away. Is there a setting to take care of this?

Which monitor vsync is followed is a display driver setting. VLC is not involved. It should be somewhere in your control panel.