Thread: SSH and USB

hello !
i've 2 computers running 12.04 lts.
1 called tower has usb scanner (epson 2450) attached. other, laptop.
on tower computer use scanner open terminal , launch vuescan scanning software using /opt/vuescan/vuescan.
yesterday, wife using tower computer. instead of lockin session , opening new one, decided use laptop. ran, on terminal on laptop :ssh -x tower.
typed /opt/vuescan/vuescan , software complained there no scanner attached can open.
checked dmesg , lsusb see scanner here.
modified x settings on laptop , ran on tower software root (sudo su -) set display correectly , ran /opt/vuescan/vuescan see that, now, scanner here , software apt use it.

question :
why can access usb scanner when ran "application -accessories -terminal " , not when use ssh -x <machine> ? far know, use same credentials, , same devices/access methods ?


many in advance , advice !

i don't use "vuescan", suspect group permissions issue. check in group (id) scanner device in /dev/ is. make /dev/{scanner} allows group "rw" permissions.

if used sudo -s instead of sudo -i, have retained ssh -x display settings. man sudo explains all.

btw, use gscan2pdf scan documents. reasonable ocr (multiple methods) , conversion many different formats built gui. of course, uses multiple, proven, f/loss tools under covers.

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