I really don't know where to look for help with this problem, so I'm starting here.

I am running a clean install of 12.10, on Gigabyte z68a-dh3-b3 mobo, Core i5 2500K, integrated Intel HD 3000 (Sandy Bridge). Dual Monitor setup; Samsung (1440x900) on DVI and Acer (HD 1080p) on HDMI.

Whenever the HDMI output is "active", i.e. Acer screen configured "On" in Display Settings, my wireless keyboard and mouse are *very* unresponsive - characters dropped while typing, and mouse super slow. When I configure the Acer screen "Off", everything immediately returns to normal.

The questions I have are is this an Intel Graphics driver issue ? A USB issue ? An Xorg issue ? Just don't know where to start.