[Interest] Qt5 and eglfs, mouse input performance

[Jacob Kroon]

I see that it has been fixed in git. sorry for the noise.
/Jacob


On Fri, Nov 29, 2013 at 4:43 PM, Jacob Kroon <jacob.kroon at gmail.com> wrote:

> Hi,
>
> I'm using Qt 5.1.1 on a Wandboard, built with OpenEmbeddedCore.
>
> I'm seeing some strange things when using eglfs. If I dont set
> QT_QPA_EGLFS_FORCEVSYNC, the mouse cursor reacts slowly to input. If I do
> set QT_QPA_EGLFS_FORCEVSYNC=1, the mouse cursor response improves. So this
> makes think that since the render thread now waits for vsync, the input
> thread (if this is in fact how the work is split up..) now has time to poll
> and handle the mouse input events. But this feels wrong, why should vsync
> improve mouse reponse ?
>
> Could anyone shed some light on this, and on what could be done to improve
> the mouse input latency ?
>
> Regards
> Jacob
>



-- 
  -- Jacob
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