Comment # 22 on bug 905034 from Per Jessen

(In reply to Johannes Meixner from comment #18)

> Now the scanner itself could be somehow a bit damaged
> but I think this is unlikely.

Yes, also given that it works fine with another desktop, that seems unlikely. 

> For now it is only a gut feeling but I think that something
> goes wrong during USB data transfer in the software that
> is used for the low-level USB data transfer.

I have been thinking exactly that.

> For me it looks as if while the data is being read from the scanner,
> the data becomes more and more distorted and this seems to indicate
> that something goes more and more wrong during USB data transfer.

One little hardware difference - office11, where the scanner works, has a local
disk as root, office12 and -13 both boot from NFS. It seems like a long shot,
but the two NFS-root machines probably have more I/O and interrupts happening
during the data transfer.  I might try another machine with local disk and see
what happens.

> Please install kernel-default and boot with it (you may have to
> manually select it in the Grub boot menue) and then run
> 
> # lspci -v | egrep -i 'usb|hci'
> 
> # lsmod | egrep 'usb|hci'
> 
> and post the output of both commands here.

Willdo.