mm.cfg : user-local configuration file; lives in user’s home directory on Unix/Linux systems and is largely only useful when using content debugger versions of the Player
mms.cfg : system-wide configuration file, designed to allow administrators to set policy for all users on a system; lives in /etc/adobe on Unix/Linux systems.
There is a lengthy guide available that describes all of the various administration features and what the mms.cfg can do for you.
Open up the terminal Application > Accessories > Terminal and type following command:
Create directory: sudo mkdir /etc/adobe
Create file mms.cfg under directory /etc/adobe and add entry following entry into this file...
OverrideGPUValidation=trueAlso it may be possible to enable it via the hidden adobe folder inside the home folder, in which case use:
echo OverrideGPUValidation=true >> ~/.adobe/mms.cfgPlease don’t expect the option to be a magical speed boost option for the Flash Player as a whole but surely you should able to feel some improvement in the flash