[Interest] Reduce maximum frame rate with Qt5.3 beta

[Joshua Kolden]

A  60hz refresh rate is very common, but it is by no means the only sync rate in use.  I would hope that qt does noting to limit frame rate! Only the user or os/display driver know if frame rate should be bound to the display refresh (“vertical sync”) AND if the refresh rate is 60hz or something else.  It’s handy if Qt provides access to limiting frame rate for specific applications / testing, but by default neither the app nor the tool kit should set frame rate to a hard limit. 

j

On Apr 19, 2014, at 9:38 AM, Thiago Macieira <thiago.macieira at intel.com> wrote:

> Em sáb 19 abr 2014, às 13:20:11, Stéphane Fabry escreveu:
>> Hello,
>> 
>> I saw something strange, if you try a simple QtQuick application with Qt
>> 5.3 and measure the fps, it seems now limited to 60fps where i could
>> reach > 200fps with Qt5.2
>> Is it normal and if yes why ?
> 
> It's normal. Your screen can display a maximum of 60 frames per second. Why 
> render more frames if they can't be displayed?
> 
> -- 
> Thiago Macieira - thiago.macieira (AT) intel.com
>  Software Architect - Intel Open Source Technology Center
> 
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