I am currently running mupen64plus 1.99.5+1 on Ubuntu 13.04. I am controlling it with xboxdrv userspace driver and an XBox 360 wireless control and I have mostly everything working as expected. The only thing I am having issues with is rumble support. I have enabled xboxdrv with force feedback support and I can get it to work with fftest. I chmod 666 the /dev/input/eventX device. For some reason I can only get rumble to work (besides fftest) if I launch mupen64plus with sudo. And even then, the only rumble support I get is when I press the mempack or rumble pack switch buttons and you get the long or short vibration to indicate the switch is taking place. No actual vibration in game. So I am trying to figure out A...why do I need to launch mupen64plus as root and B...why no real vibration from in game events? Thanks for any help that can be provided.