[Ayatana-dev] Compiz VSync

[Jay Taoko <jay.taoko@xxxxxxxxxxxxx>]

Hello

Last cycle it was noticed that there is a problem when using the fglrx 
driver and Compiz Vsync. I did a few experiments today with an AMD GPU 
and the fglrx driver. Activating Compiz Vsync option negatively impact 
Unity's rendering performance.
So I ask: how is Compiz Vsync supposed to behave? What API does it uses 
that causes the performance hit?
Is this an issue in Compiz or something in the Fglrx drivers to 
investigate?
AMD seems to think that things are alright on their side. Can people in 
the know shed more light on this (Sam, Thomas)? Is this only limited to 
the fglrx driver?

Thanks
Jay