Public bug reported: I'm not really sure which package this problem is in. This report is from "ubuntu-bug sane".
I tried "ubuntu-bug libsane" but it went to sane-backends. linda@gazelle:~$ scanimage -L device `brother4:bus2;dev1' is a Brother DCP-8155DN USB scanner linda@gazelle:~$ scanimage -T scanimage: rounded value of br-x from 215.9 to 215.88 scanimage: rounded value of br-y from 355.6 to 355.567 scanimage: sane_start: Invalid argument I originally reported the bug here (comments of elindarie): https://bugs.launchpad.net/bugs/1312594 and here https://bugs.launchpad.net/bugs/1380414 where I also uploaded some gscan2pdf log and config files. Gscan2pdf also gives "invalid argument". I installed the Brother drivers. The scanner is working with an older Debian laptop (32-bit) but not a newer Ubuntu 14.04 (64-bit) laptop. Added the following line to /lib/udev/rules.d/40-libsane.rules: ATTRS{idVendor}=="04f9", ATTRS{idProduct}=="0293", ENV{libsane_matched}="yes" If someone could tell me what more debugging to do - where to put print statements into a driver and recompile it into a development location for testing, I would gladly compare its output to that from the working Debian laptop. Thank you. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: sane 1.0.14-9 ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7 Uname: Linux 3.13.0-37-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.5 Architecture: amd64 CurrentDesktop: Unity Date: Sun Oct 12 15:47:40 2014 SourcePackage: sane-frontends UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: sane-frontends (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty ** Attachment added: "gscan2pdf log" https://bugs.launchpad.net/bugs/1380419/+attachment/4233482/+files/log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1380419 Title: scanner recognized but says sane_start: Invalid argument To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-frontends/+bug/1380419/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs