Sounds like the typical Linux USB problem. Please see this statement from the sane 1.0.27 release notes:
Note 3: The Linux USB3 workaround which was added in version 1.0.25 is now disabled by default. If you have difficulty using a scanner which previously worked, or intermittent scanner availability, try setting the new environment variable SANE_USB_WORKAROUND=1 before starting your frontend. Please give this a try, and let us know if it helps. allan On Mon, Dec 4, 2017 at 5:47 AM, Max Westen <m...@dlmax.org> wrote: > Follow up: > > Tried the other USB-port. > detecting the scanner gives me a hit. Immediately rescanning and the device > is 'gone': > > [max@Luminox test]$ scanadf -L > device `epjitsu:libusb:002:002' is a FUJITSU ScanSnap S1300i scanner > [max@Luminox test]$ scanadf -L > [max@Luminox test]$ > > > After some trying, this behaviour keeps the same... > > I've prepared a comammandline with the next USB instance, unplug the USB, > put it back in and then execute the command. Yay it works ! > > [max@Luminox test]$ scanadf -d "epjitsu:libusb:002:009" --source "ADF > Duplex" --mode Color --resolution 300dpi -o /tmp/20171204_113055/page_%04d > --page-height 376 > scanadf: rounded value of page-height from 376 to 375.999 > Scanned document /tmp/20171204_113055/page_0001 > Scanned document /tmp/20171204_113055/page_0002 > Scanned 2 pages > [max@Luminox test]$ scanadf -L > device `epjitsu:libusb:002:009' is a FUJITSU ScanSnap S1300i scanner > [max@Luminox test]$ scanadf -L > [max@Luminox test]$ > > but immediately running a scanadf -L afterwards, gets me the correct ID, > giving the command another time, makes it disappear.... > > I can't get my head around this, but this isn't really workable.... > > > Any help is greatly appreciated! > > Max > > -- > sane-devel mailing list: sane-devel@lists.alioth.debian.org > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel > Unsubscribe: Send mail with subject "unsubscribe your_password" > to sane-devel-requ...@lists.alioth.debian.org -- "well, I stand up next to a mountain- and I chop it down with the edge of my hand" -- sane-devel mailing list: sane-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to sane-devel-requ...@lists.alioth.debian.org