Another update. I have deleted all the partitions. Created a 350GB EXT4
partition.  Copied a 700MB file to it no problems.  Tried copying the
file back off the drive to the laptops drive and the problem re occures.
Therefore, this bug is when it reads from the drive rather than writes
to the drive.  It also appears I need to do the following in order for
the drive to stay mounted -

sudo echo 5 > /sys/module/usb_storage/parameters/delay_use


What is interesting is if I leave the drive on after it has this error and 
disappears off the USB Bus, I can hear the drive....sounds like the heads are 
contractually trying to read the disk.

How do I get someone to look at this list, I am sending in all the
information I can!

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https://bugs.launchpad.net/bugs/1012291

Title:
   USB disconnect

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