Can also confirm the same problem with SCX-3400 model. Printing and scanning worked in all versions before 17.10, and scanning stopped working since then. I also have Debian Testing at home - it doesn't have this problem at all.
I believe this is related to libsane (v1.0.25-4) being renamed to libsane1 (v1.0.27-1) and then maybe something more have changed between these versions. Note that 1.0.27 is actually still tagged as experimental. Can also confirm that setting SANE_USB_WORKAROUND variable fixes the problem, however it is not a nice workaround and things should just work out of the box. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to sane-backends in Ubuntu. https://bugs.launchpad.net/bugs/1741977 Title: SCX-3200, scanning fails after migration to Kubuntu 17.10 Status in sane-backends package in Ubuntu: Confirmed Bug description: A couple of days ago, I upgraded from kubuntu 16.10 to 17.04 and then to 17.10, including the required reboots. Before the upgrade I was able to use my printer/scanner SCX-3200 without problems, with 17.10 I can only use the printer part. sane-find-scanner finds the scanner $ sane-find-scanner -q [...] product=0x3441 [SCX-3200 Series]) at libusb:003:019 [...] And when I start scanimage the first time, it can talk to the scanner just fine: $ export SANE_DEBUG_XEROX_MFP=255 $ scanimage -L [sanei_debug] Setting debug level of xerox_mfp to 255. [xerox_mfp] sane_init: Xerox backend (build 13), version != null, authorize != null [xerox_mfp] sane_xerox_mfp_get_devices: 0x7ffdf4d2e220, 0 [xerox_mfp] list_one_device: libusb:003:018 [xerox_mfp] usb_dev_open: open 0x55d2e393c5d0 [xerox_mfp] :: dev_command(INQUIRY[0x12], 70) [xerox_mfp] [70] a8 00 43 10 53 61 6d 73 75 6e 67 20 53 61 6d 73 75 6e 67 20 53 43 58 2d 33 32 30 30 20 53 65 72 69 65 73 20 19 33 84 2b 00 00 27 d8 00 00 36 d8 00 01 51 00 00 01 00 00 00 00 36 d8 00 00 36 d8 00 01 05 05 00... [xerox_mfp] dev_inquiry: found Samsung/Samsung SCX-3200 Series [xerox_mfp] usb_dev_close: closing dev 0x55d2e393c5d0 device `xerox_mfp:libusb:003:018' is a Samsung Samsung SCX-3200 Series multi-function peripheral When I start scanimage a second time it cannot talk to the scanner anymore: $ scanimage -L [sanei_debug] Setting debug level of xerox_mfp to 255. [xerox_mfp] sane_init: Xerox backend (build 13), version != null, authorize != null [xerox_mfp] sane_xerox_mfp_get_devices: 0x7ffe9ae18760, 0 [xerox_mfp] list_one_device: libusb:003:018 [xerox_mfp] usb_dev_open: open 0x56138cfa1870 [xerox_mfp] :: dev_command(INQUIRY[0x12], 70) [xerox_mfp] usb_dev_request: sanei_usb_read_bulk: Error during device I/O [xerox_mfp] dev_command: dev_request: Error during device I/O [xerox_mfp] usb_dev_close: closing dev 0x56138cfa1870 [xerox_mfp] list_one_device: dev_inquiry(libusb:003:018): Error during device I/O Unplugging the usb cable and plugging it back in allows scanimage to talk to the scanner once. After that it fails again. The USB cable is not a problem, as it worked with 16.10. I downloaded VueScan and it has not problems to repeatedly scan pages using the same hw, which also indicates that this is a sw and not a hw problem. And just to mention it again, printing also works fine using the same cable. And yes, I tried multiple USB ports. All exhibit the same behaviour. When I execute scanimage -L once and start VueScan afterwards, then VueScan also doesn't see the scanner anymore. After unplugging and replugging the UBS cable and restarting VueScan, it's able to scan again. Looks to me like sane doesn't know how to talk to the scanner anymore. It seems that something get's messed up during the first usb command, which prevents subsequent usb commands from succeeding. I just downloaded 16.04.3 LTS and booted it from a USB stick. I can confirm that the scanner still works with 16.04. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: sane-utils 1.0.27-1~experimental2ubuntu2.1 ProcVersionSignature: Ubuntu 4.13.0-21.24-generic 4.13.13 Uname: Linux 4.13.0-21-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.7 Architecture: amd64 CurrentDesktop: KDE Date: Mon Jan 8 20:53:07 2018 InstallationDate: Installed on 2016-04-03 (645 days ago) InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) SourcePackage: sane-backends UpgradeStatus: Upgraded to artful on 2018-01-05 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1741977/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
