You might try sane-backends 1.0.27, which includes the following statement in its 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. On Fri, Jul 28, 2017 at 10:02 PM, Leon Hauck <l...@progcpu.net> wrote: > TLDR: are there any known issues using a Nikon Coolscan IV ED with > libusb 0.1.12-30 and kernel 4.9.0? > > --------------------------------------- > > I'm trying to get an Coolscan IV ED (LS40) to work with Debian Stretch > (current stable release). > > scanimage -L > > properly identifies the scanner, however > > scanimage > testme.pnm > > hangs and eventually errors out due to an i/o error. > > I connected this scanner to a laptop running the same software with the same > results. > > I connected the scanner to an older laptop running Debian Jessie (previous > stable release), and it works fine, and I can also pass along additional > command line arguments for white balance, auto-focus, etc. > > I'm guessing something may have changed in libusb and/or the kernel, which > is preventing communication with this older USB1.1 unit. > > Are there any known issues with this setup? > > -- > 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