Originally Posted by iwobanas
It depends on the devices. On my test Galaxy S with JB 4.1 it works fine but on many devices it's not stable. In general newer roms tend to have better graphic/video encoder drivers.
Hmmm...quite odd...I assume your Galaxy S is running on a custom ROM?
I use a Galaxy S2 GT-i9100 Spain-region stock ROM...which is released in February 2013 (no updates since), but I noticed other regions had newer/updated ROMs (though still 4.1.2)...maybe a different region can solve the problem? (if you know anyone that confirmed GPU transformation working on the S2 I'd really appreciate info on the ROM used)