LTSP | LTSP4.2 Scanning

Posted in: technology. Tagged: ltsp, scan

Enable saned on terminal

• Edit /opt/ltsp/i386/etc/lts.conf and add XINETD_SERVICES = "saned" to the [default] or relevant terminal section
• Restart the terminal
• Run scanimage -L on workstation shell to verify that scanner has been detected

Usage

• Physically plug the scanner into the terminal using USB or parallel port.
• Edit /etc/sane.d/net.conf and add the hostname or address of client running saned
• Use xsane, OpenOffice.org, GIMP, or any other scanner-aware application, as they should now list the scanner.

Alternative to net.conf

If you do not wish to add the host to net.conf (as shown above) then you can run the following:

$ SANE_NET_HOSTS=`echo $DISPLAY | cut -d: -f1`
$ export SANE_NET_HOSTS

This will only work for the life of the terminal window - so you will need to run the application from the command line. Alternatively add this to a script that does the scanning.

Scanning from the command line

Check scanner detected

$ scanimage -L

Scan

$ scanimage -l 0 -t 0 -x 215 -y 297 --mode {Lineart|Gray|Color} --resolution {75..600} --format {pnm|tiff} --brightness {-100..100} --contrast {-100..100} >test.pnm

References

• http://wiki.ltsp.org/twiki/bin/view/Ltsp/Scanners