I finally got it working, although apt complains. Andrea Rota does in fact give the solution above, though I missed it as well:
"if i downgrade this single package to libsane- hpaio_3.12.2-1ubuntu3.1_amd64 from Precise i can scan ok" I found a copy of that file (here: http://packages.ubuntu.com/precise- updates/amd64/libsane-hpaio/download), but then ran into difficulties installing it. Synaptic or Apt either forced me to remove the other HP files (hplip and dependencies), or if I installed this file alone, they then insisted that this file be upgraded to the latest version - which was not the point. The answer, I eventually discovered, is to have hplip fully installed, THEN force the installation of this single .deb, using the command: sudo dpkg -i libsane-hpaio_3.12.2-1ubuntu3.1_amd64.deb During the process you have to choose between keeping the later version or insist (correctly) on installing this apparently dodgy earlier one. In fact, I did this after running the latest version of HPLIP (which I downloaded from here: http://hplipopensource.com/hplip- web/install/install/index.html). I'm not sure if I gained anything using this latest version (which probably only supports more printer models, rather than offering more features - though it does offer installation of fax facilities, which is not something I have had before), but do note that if you try it, it requires that an existing version of HPLIP be already installed. No idea why. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to hplip in Ubuntu. https://bugs.launchpad.net/bugs/1069898 Title: regression: cannot open network scanner with error "unable to read device-id ret=-1" Status in HP Linux Imaging and Printing: Fix Released Status in “hplip” package in Ubuntu: New Bug description: under Ubuntu 12.04 i could scan perfectly via the network from my HP Photosmart Premium MFP (HP C309A), using gscan2pdf as frontend. during Quantal beta and now on Quantal release, i cannot access the network-connected scanner anymore: when opening the scan dialog in gscan2pdf, the error message displayed is "Error opening device: End of file reached". on closer inspection, and having tried all the different backends available in gscan2pdf, this seems related to the package libsane- hpaio: if i downgrade this single package to libsane- hpaio_3.12.2-1ubuntu3.1_amd64 from Precise i can scan ok (only side effect is that gscan2pdf hangs on exit and needs to be killed with signal SIGKILL). in syslog, these are the lines that appear when using the newer libsane-hpaio from Quantal when a frontend application tries to access the scanner: perl: io/hpmud/pp.c 627: unable to read device-id ret=-1 perl: io/hpmud/hpmud.c 611: invalid channel_open state perl: failed to open scan channel: scan/sane/hpaio.c 659 perl: sane_hpaio_cancel: already cancelled! perl: io/hpmud/hpmud.c 611: invalid channel_open state perl: failed to open scan channel: scan/sane/hpaio.c 659 perl: sane_hpaio_cancel: already cancelled! perl: io/hpmud/pp.c 627: unable to read device-id ret=-1 hp-check completes without errors nor warnings and correctly finds the network-connected scanner: ------------------------------ | DISCOVERED SCANNER DEVICES | ------------------------------ device `hpaio:/net/Photosmart_C309a_series?ip=192.168.2.10' is a Hewlett-Packard Photosmart_C309a_series all-in-one hp-scan displays a similar error message to gscan2pdf: $ hp-scan -d hpaio:/net/Photosmart_C309a_series?ip=192.168.2.10 -s viewer HP Linux Imaging and Printing System (ver. 3.12.6) Scan Utility ver. 2.2 Copyright (c) 2001-14 Hewlett-Packard Development Company, LP This software comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to distribute it under certain conditions. See COPYING file for more details. Using device hpaio:/net/Photosmart_C309a_series?ip=192.168.1.72 Opening connection to device... error: SANE: End of file reached (code=5) $ and the corresponding error messages in syslog are: python: io/hpmud/pp.c 627: unable to read device-id ret=-1 hp-scan: hp-scan[10183]: error: SANE: End of file reached (code=5) ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: libsane-hpaio 3.12.6-3ubuntu4 Uname: Linux 3.6.2-030602-generic x86_64 ApportVersion: 2.6.1-0ubuntu3 Architecture: amd64 Date: Mon Oct 22 16:51:47 2012 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011) Lpstat: device for hp-cute: hp:/net/Photosmart_C309a_series?ip=192.168.2.10 device for hp-cute-fax: hpfax:/net/Photosmart_C309a_series?ip=192.168.2.10 MachineType: System manufacturer System Product Name Papersize: a4 PpdFiles: hp-cute: HP Photosmart c309a Series, hpcups 3.12.6 hp-cute-fax: HP Fax hpcups ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.6.2-030602-generic root=/dev/mapper/vgx11miel0-rootfs ro quiet splash vt.handoff=7 SourcePackage: hplip UpgradeStatus: Upgraded to quantal on 2012-09-09 (42 days ago) dmi.bios.date: 07/25/2007 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1001 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P5B-VM dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1001:bd07/25/2007:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5B-VM:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/hplip/+bug/1069898/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
