I forgot to mentioned an important detail about the nature of this bug. Often 
if I remove the power cable (the adapter cable) it is able to detect the 
touchpad, then after boot is completed I put the adapter cable in and most if 
not all the subsequent boots with the power cable inserted the kernel detects 
the touchpad.
If I shutdown and change room, insert the adapter cable into another socket and 
boot, the touchpad is not detected. It seems to have something to do with the 
presence of the adapter during boot interfering with the bus.
Saying that I don't think it's a hardware failure because the Windows partition 
manages to initialise the touchpad independently on whether the power cable is 
attached or not. Now my battery is flat and cannot boot without power cable.

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https://bugs.launchpad.net/bugs/1091014

Title:
  Dell Inspiron 1370 Synaptics touchpad not detected by kernel

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