The problem here appears to be caused by an improper Chassis Type in the
DMI table. The problem we're working around with i8042.noloop is in
code that is actually not supposed to be enabled for any laptops, but
this DMI table does not indicate that it is a laptop, as indicated by
"dmi.chassis.type: 1" or ...
$ sudo dmidecode -s chassis-type
Other
I believe that if the chassis-type was any of "{Portable, Laptop,
Notebook, Sub-Notebook}" (types 8, 9, 10, and 14 respectively) then the
touchpad would work correctly without requiring any special boot option.
--
touchpad not functional on Gigabyte Spring Peak
https://bugs.launchpad.net/bugs/580664
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