Hello !
I've two computers running 12.04 LTS.
One called tower has an USB scanner (Epson 2450) attached. The other, a laptop.
On the tower computer to use the scanner I open a terminal and launch vuescan scanning software by using /opt/Vuescan/vuescan.
Yesterday, my wife was using the tower computer. Instead of lockin her session and opening a new one, I decided to use the laptop. So I ran, on a terminal on the laptop :ssh -X tower.
Then I typed /opt/Vuescan/vuescan and the software complained that there where no scanner attached it can open.
So I checked dmesg and lsusb to see that the scanner was actually here.
I then modified the X settings on the laptop and ran on the tower the software as root (sudo su -) then set the DISPLAY correectly and ran /opt/Vuescan/vuescan to see that, now, the scanner was here and that the software was apt to use it.
Question :
Why can I access the usb scanner when I ran "Application -Accessories -Terminal " and not when I use ssh -X <machine> ? As far as I know, I use the same credentials, and the same devices/access methods ?
Many thanks in advance for your help and advice !