Comment 2 for bug 108221

Attached : lspci

How-to-reproduce :
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DO : look for a computer with a SiS chipset (by preference SiS 630 but it seems that this bug applies to other chipsets)
DO : plug on that computer a PS/2 mouse
DO : start Feisty on this computer, using a liveCD or an install
EXPECT : the mouse should be frozen on X server
DO : type the command sudo cat /dev/input/mice
DO : move your PS/2 mouse
EXPECT : nothing should appear to the screen
DO : plug an USB mouse to your computer
EXPECT : the USB mouse should move normally