Posted by Sven Gothel on Jul 29, 2014; 3:01pm
URL: https://forum.jogamp.org/Poor-performances-on-Linux-Ubuntu-unless-desktop-effects-are-disabled-tp4032647p4032674.html

On 07/29/2014 10:53 AM, riccaricca68 [via jogamp] wrote:
>
> Hi Sven, what is your VSYNC setting? Is it ON (vsync enabled) or OFF
> (deactivated)?

Like 'ON' until driver/app tells otherwise,
but not 'always ON'.

AFAIK .. Nvidia/AMD proprietary drivers has such flags.

For Mesa/Radeon .. oh well, you need to do magic things:

Put that into e.g. '/etc/X11/xorg.conf.d/20-radeon.conf':
+++
Section "Device"
    Identifier "Radeon"
    Driver "radeon"
    Option "EnablePageFlip" "on"
    Option "SwapBuffersWait" "on"
    Option "EXAVSync" "on"
    #Option "EXAPixmaps" "off"
EndSection
+++

However, your mileage may vary here.
AFAIK I turned on KDE's composition VSYNC (always)
to avoid tearing.

~Sven