It happened to me around 12 days ago, after (I think, not sure completely) I installed JoJo Bizarre Adventures All Stars Battle. At first, I thought I lost vibration at all, but, when I dig through my fightings I found out that Injustice have it, but at very reduced rate that I barely can sense it. Tekken Tag Tournament have it too. But many other games that I remember got vibration now don't have it. I tested my 2 dualshock 3 gamepads and PS2 pad Thrustmaster Dual Rumble Forse. I also tried to restore System Files and System Databases from the service menus - didn't help either.
What also can I do to restore vibration as it should be - to 100%?
I have nowhere else to go.
Thanks in advance to all of you!
Have you tried resetting your controllers back to factory settings?
If you are having issues with your Dualshock/SixAxis controllers, see this page: