Can the mouse polling rate be higher than the screen refresh rate?

Media Technologies General
ukor OP
Created Dec ’16
Replies 2
Boosts 0
Views 893
Participants 2

Hi,


it seems that mouse events are handled at the same refresh rate the screen is working with. This is usually ok, but some resolutions on HDMI only come with a screen refresh rate of 30 Hz, which creates a very laggy mouse behavior with latency. This is in particular bad with touchscreens like Smart Boards or similar – we have a board that is almost unusable if we switch to 4K video (at 30Hz), but works fine with HD video (at 60Hz).


Is there any way to have a higher mouse polling rate than the screen refresh rate?


thanks

Ulli

Replies  2
Boosts  0
Views  893
Participants  2
Ken Thomases OP
Dec ’16

Have you tried [NSEvent setMouseCoalescingEnabled:NO]?

1
ukor OP
Dec ’16

Thank you for the answer – I did not try this yet with my own applications. Problem is that the software of the board manufacturer shows that behavior already, and I do not have access to their source code. So it would be great to be able to turn off coalescing on system wide basis…

0
Can the mouse polling rate be higher than the screen refresh rate?
First post date Last post date
 
 
Q